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VaultRouter | VaultRouter.sol | 0x9e9f4b105e10a66b27c771811ce4defbd44567d2 | Solidity | Address | library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies in extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
// solhint-disable-next-line no-inline-assembly
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(
address target,
bytes memory data,
uint256 weiValue,
string memory errorMessage
) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{value: weiValue}(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
} | /**
* @dev Collection of functions related to the address type
*/ | NatSpecMultiLine | functionCall | function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
| /**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | ipfs://38ce5c6af5f119df33d6c128c761796ed6341eb5d78756f5cf54835a34958588 | {
"func_code_index": [
3546,
3781
]
} | 407 |
VaultRouter | VaultRouter.sol | 0x9e9f4b105e10a66b27c771811ce4defbd44567d2 | Solidity | Address | library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies in extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
// solhint-disable-next-line no-inline-assembly
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(
address target,
bytes memory data,
uint256 weiValue,
string memory errorMessage
) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{value: weiValue}(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
} | /**
* @dev Collection of functions related to the address type
*/ | NatSpecMultiLine | functionCallWithValue | function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
| /**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | ipfs://38ce5c6af5f119df33d6c128c761796ed6341eb5d78756f5cf54835a34958588 | {
"func_code_index": [
4151,
4416
]
} | 408 |
VaultRouter | VaultRouter.sol | 0x9e9f4b105e10a66b27c771811ce4defbd44567d2 | Solidity | Address | library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies in extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
// solhint-disable-next-line no-inline-assembly
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(
address target,
bytes memory data,
uint256 weiValue,
string memory errorMessage
) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{value: weiValue}(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
} | /**
* @dev Collection of functions related to the address type
*/ | NatSpecMultiLine | functionCallWithValue | function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
| /**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | ipfs://38ce5c6af5f119df33d6c128c761796ed6341eb5d78756f5cf54835a34958588 | {
"func_code_index": [
4667,
5031
]
} | 409 |
VaultRouter | VaultRouter.sol | 0x9e9f4b105e10a66b27c771811ce4defbd44567d2 | Solidity | BaseFallback | contract BaseFallback is Fallback {
/**
* @dev Contract constructor.
* @param _logic Address of the initial implementation.
* @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
* This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
*/
constructor(address _logic, bytes memory _data) payable {
assert(IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
_setImplementation(_logic);
if (_data.length > 0) {
(bool success, ) = _logic.delegatecall(_data);
require(success);
}
}
/**
* @dev Emitted when the implementation is upgraded.
* @param implementation Address of the new implementation.
*/
event Upgraded(address indexed implementation);
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @dev Returns the current implementation.
* @return impl Address of the current implementation
*/
function _implementation() internal view override returns (address impl) {
bytes32 slot = IMPLEMENTATION_SLOT;
assembly {
impl := sload(slot)
}
}
/**
* @dev Upgrades the to a new implementation.
* @param newImplementation Address of the new implementation.
*/
function _upgradeTo(address newImplementation) internal {
_setImplementation(newImplementation);
emit Upgraded(newImplementation);
}
/**
* @dev Sets the implementation address of the.
* @param newImplementation Address of the new implementation.
*/
function _setImplementation(address newImplementation) internal {
require(Address.isContract(newImplementation), "Cannot set a implementation to a non-contract address");
bytes32 slot = IMPLEMENTATION_SLOT;
assembly {
sstore(slot, newImplementation)
}
}
} | /**
* @title BaseFallback
* @dev This contract implements a proxy that allows to change the
* implementation address to which it will delegate.
* Such a change is called an implementation upgrade.
*/ | NatSpecMultiLine | _implementation | function _implementation() internal view override returns (address impl) {
bytes32 slot = IMPLEMENTATION_SLOT;
assembly {
impl := sload(slot)
}
}
| /**
* @dev Returns the current implementation.
* @return impl Address of the current implementation
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | ipfs://38ce5c6af5f119df33d6c128c761796ed6341eb5d78756f5cf54835a34958588 | {
"func_code_index": [
1601,
1796
]
} | 410 |
VaultRouter | VaultRouter.sol | 0x9e9f4b105e10a66b27c771811ce4defbd44567d2 | Solidity | BaseFallback | contract BaseFallback is Fallback {
/**
* @dev Contract constructor.
* @param _logic Address of the initial implementation.
* @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
* This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
*/
constructor(address _logic, bytes memory _data) payable {
assert(IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
_setImplementation(_logic);
if (_data.length > 0) {
(bool success, ) = _logic.delegatecall(_data);
require(success);
}
}
/**
* @dev Emitted when the implementation is upgraded.
* @param implementation Address of the new implementation.
*/
event Upgraded(address indexed implementation);
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @dev Returns the current implementation.
* @return impl Address of the current implementation
*/
function _implementation() internal view override returns (address impl) {
bytes32 slot = IMPLEMENTATION_SLOT;
assembly {
impl := sload(slot)
}
}
/**
* @dev Upgrades the to a new implementation.
* @param newImplementation Address of the new implementation.
*/
function _upgradeTo(address newImplementation) internal {
_setImplementation(newImplementation);
emit Upgraded(newImplementation);
}
/**
* @dev Sets the implementation address of the.
* @param newImplementation Address of the new implementation.
*/
function _setImplementation(address newImplementation) internal {
require(Address.isContract(newImplementation), "Cannot set a implementation to a non-contract address");
bytes32 slot = IMPLEMENTATION_SLOT;
assembly {
sstore(slot, newImplementation)
}
}
} | /**
* @title BaseFallback
* @dev This contract implements a proxy that allows to change the
* implementation address to which it will delegate.
* Such a change is called an implementation upgrade.
*/ | NatSpecMultiLine | _upgradeTo | function _upgradeTo(address newImplementation) internal {
_setImplementation(newImplementation);
emit Upgraded(newImplementation);
}
| /**
* @dev Upgrades the to a new implementation.
* @param newImplementation Address of the new implementation.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | ipfs://38ce5c6af5f119df33d6c128c761796ed6341eb5d78756f5cf54835a34958588 | {
"func_code_index": [
1936,
2096
]
} | 411 |
VaultRouter | VaultRouter.sol | 0x9e9f4b105e10a66b27c771811ce4defbd44567d2 | Solidity | BaseFallback | contract BaseFallback is Fallback {
/**
* @dev Contract constructor.
* @param _logic Address of the initial implementation.
* @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
* This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
*/
constructor(address _logic, bytes memory _data) payable {
assert(IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
_setImplementation(_logic);
if (_data.length > 0) {
(bool success, ) = _logic.delegatecall(_data);
require(success);
}
}
/**
* @dev Emitted when the implementation is upgraded.
* @param implementation Address of the new implementation.
*/
event Upgraded(address indexed implementation);
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @dev Returns the current implementation.
* @return impl Address of the current implementation
*/
function _implementation() internal view override returns (address impl) {
bytes32 slot = IMPLEMENTATION_SLOT;
assembly {
impl := sload(slot)
}
}
/**
* @dev Upgrades the to a new implementation.
* @param newImplementation Address of the new implementation.
*/
function _upgradeTo(address newImplementation) internal {
_setImplementation(newImplementation);
emit Upgraded(newImplementation);
}
/**
* @dev Sets the implementation address of the.
* @param newImplementation Address of the new implementation.
*/
function _setImplementation(address newImplementation) internal {
require(Address.isContract(newImplementation), "Cannot set a implementation to a non-contract address");
bytes32 slot = IMPLEMENTATION_SLOT;
assembly {
sstore(slot, newImplementation)
}
}
} | /**
* @title BaseFallback
* @dev This contract implements a proxy that allows to change the
* implementation address to which it will delegate.
* Such a change is called an implementation upgrade.
*/ | NatSpecMultiLine | _setImplementation | function _setImplementation(address newImplementation) internal {
require(Address.isContract(newImplementation), "Cannot set a implementation to a non-contract address");
bytes32 slot = IMPLEMENTATION_SLOT;
assembly {
sstore(slot, newImplementation)
}
}
| /**
* @dev Sets the implementation address of the.
* @param newImplementation Address of the new implementation.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | ipfs://38ce5c6af5f119df33d6c128c761796ed6341eb5d78756f5cf54835a34958588 | {
"func_code_index": [
2238,
2554
]
} | 412 |
VaultRouter | VaultRouter.sol | 0x9e9f4b105e10a66b27c771811ce4defbd44567d2 | Solidity | VaultRouter | contract VaultRouter is BaseFallback {
/**
* Contract constructor.
* @param _logic address of the initial implementation.
* @param _admin_ Address of the administrator.
* @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
* This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
*/
constructor(
address _logic,
address _admin_,
bytes memory _data
) payable BaseFallback(_logic, _data) {
assert(ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
_setAdmin(_admin_);
}
/**
* @dev Emitted when the administration has been transferred.
* @param previousAdmin Address of the previous admin.
* @param newAdmin Address of the new admin.
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @dev Modifier to check whether the `msg.sender` is the admin.
* If it is, it will run the function. Otherwise, it will delegate the call
* to the implementation.
*/
modifier ifAdmin() {
if (msg.sender == _admin()) {
_;
} else {
_fallback();
}
}
/**
* @return addr The address of the admin.
*/
function admin() external ifAdmin returns (address addr) {
addr = _admin();
}
/**
* @return addr The address of the implementation.
*/
function implementation() external ifAdmin returns (address addr) {
addr = _implementation();
}
/**
* @dev Changes the admin of the.
* Only the current admin can call this function.
* @param newAdmin Address to transfer administration to.
*/
function changeAdmin(address newAdmin) external ifAdmin {
require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address");
emit AdminChanged(_admin(), newAdmin);
_setAdmin(newAdmin);
}
/**
* @dev Upgrade the backing implementation of the proxy.
* Only the admin can call this function.
* @param newImplementation Address of the new implementation.
*/
function upgradeTo(address newImplementation) external ifAdmin {
_upgradeTo(newImplementation);
}
/**
* @dev Upgrade the backing implementation of the proxy and call a function
* on the new implementation.
* This is useful to initialize the proxied contract.
* @param newImplementation Address of the new implementation.
* @param data Data to send as msg.data in the low level call.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
*/
function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin {
_upgradeTo(newImplementation);
(bool success, ) = newImplementation.delegatecall(data);
require(success);
}
/**
* @return adm The admin slot.
*/
function _admin() internal view returns (address adm) {
bytes32 slot = ADMIN_SLOT;
assembly {
adm := sload(slot)
}
}
/**
* @dev Sets the address of the proxy admin.
* @param newAdmin Address of the new proxy admin.
*/
function _setAdmin(address newAdmin) internal {
bytes32 slot = ADMIN_SLOT;
assembly {
sstore(slot, newAdmin)
}
}
/**
* @dev Only fall back when the sender is not the admin.
*/
function _willFallback() internal virtual override {
require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
super._willFallback();
}
} | /**
* @title VaultRouter
* @dev This contract combines an upgradeability with an authorization
* mechanism for administrative tasks.
* All external functions in this contract must be guarded by the
* `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity
* feature proposal that would enable this to be done automatically.
*/ | NatSpecMultiLine | admin | function admin() external ifAdmin returns (address addr) {
addr = _admin();
}
| /**
* @return addr The address of the admin.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | ipfs://38ce5c6af5f119df33d6c128c761796ed6341eb5d78756f5cf54835a34958588 | {
"func_code_index": [
1889,
1985
]
} | 413 |
VaultRouter | VaultRouter.sol | 0x9e9f4b105e10a66b27c771811ce4defbd44567d2 | Solidity | VaultRouter | contract VaultRouter is BaseFallback {
/**
* Contract constructor.
* @param _logic address of the initial implementation.
* @param _admin_ Address of the administrator.
* @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
* This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
*/
constructor(
address _logic,
address _admin_,
bytes memory _data
) payable BaseFallback(_logic, _data) {
assert(ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
_setAdmin(_admin_);
}
/**
* @dev Emitted when the administration has been transferred.
* @param previousAdmin Address of the previous admin.
* @param newAdmin Address of the new admin.
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @dev Modifier to check whether the `msg.sender` is the admin.
* If it is, it will run the function. Otherwise, it will delegate the call
* to the implementation.
*/
modifier ifAdmin() {
if (msg.sender == _admin()) {
_;
} else {
_fallback();
}
}
/**
* @return addr The address of the admin.
*/
function admin() external ifAdmin returns (address addr) {
addr = _admin();
}
/**
* @return addr The address of the implementation.
*/
function implementation() external ifAdmin returns (address addr) {
addr = _implementation();
}
/**
* @dev Changes the admin of the.
* Only the current admin can call this function.
* @param newAdmin Address to transfer administration to.
*/
function changeAdmin(address newAdmin) external ifAdmin {
require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address");
emit AdminChanged(_admin(), newAdmin);
_setAdmin(newAdmin);
}
/**
* @dev Upgrade the backing implementation of the proxy.
* Only the admin can call this function.
* @param newImplementation Address of the new implementation.
*/
function upgradeTo(address newImplementation) external ifAdmin {
_upgradeTo(newImplementation);
}
/**
* @dev Upgrade the backing implementation of the proxy and call a function
* on the new implementation.
* This is useful to initialize the proxied contract.
* @param newImplementation Address of the new implementation.
* @param data Data to send as msg.data in the low level call.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
*/
function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin {
_upgradeTo(newImplementation);
(bool success, ) = newImplementation.delegatecall(data);
require(success);
}
/**
* @return adm The admin slot.
*/
function _admin() internal view returns (address adm) {
bytes32 slot = ADMIN_SLOT;
assembly {
adm := sload(slot)
}
}
/**
* @dev Sets the address of the proxy admin.
* @param newAdmin Address of the new proxy admin.
*/
function _setAdmin(address newAdmin) internal {
bytes32 slot = ADMIN_SLOT;
assembly {
sstore(slot, newAdmin)
}
}
/**
* @dev Only fall back when the sender is not the admin.
*/
function _willFallback() internal virtual override {
require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
super._willFallback();
}
} | /**
* @title VaultRouter
* @dev This contract combines an upgradeability with an authorization
* mechanism for administrative tasks.
* All external functions in this contract must be guarded by the
* `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity
* feature proposal that would enable this to be done automatically.
*/ | NatSpecMultiLine | implementation | function implementation() external ifAdmin returns (address addr) {
addr = _implementation();
}
| /**
* @return addr The address of the implementation.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | ipfs://38ce5c6af5f119df33d6c128c761796ed6341eb5d78756f5cf54835a34958588 | {
"func_code_index": [
2062,
2176
]
} | 414 |
VaultRouter | VaultRouter.sol | 0x9e9f4b105e10a66b27c771811ce4defbd44567d2 | Solidity | VaultRouter | contract VaultRouter is BaseFallback {
/**
* Contract constructor.
* @param _logic address of the initial implementation.
* @param _admin_ Address of the administrator.
* @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
* This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
*/
constructor(
address _logic,
address _admin_,
bytes memory _data
) payable BaseFallback(_logic, _data) {
assert(ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
_setAdmin(_admin_);
}
/**
* @dev Emitted when the administration has been transferred.
* @param previousAdmin Address of the previous admin.
* @param newAdmin Address of the new admin.
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @dev Modifier to check whether the `msg.sender` is the admin.
* If it is, it will run the function. Otherwise, it will delegate the call
* to the implementation.
*/
modifier ifAdmin() {
if (msg.sender == _admin()) {
_;
} else {
_fallback();
}
}
/**
* @return addr The address of the admin.
*/
function admin() external ifAdmin returns (address addr) {
addr = _admin();
}
/**
* @return addr The address of the implementation.
*/
function implementation() external ifAdmin returns (address addr) {
addr = _implementation();
}
/**
* @dev Changes the admin of the.
* Only the current admin can call this function.
* @param newAdmin Address to transfer administration to.
*/
function changeAdmin(address newAdmin) external ifAdmin {
require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address");
emit AdminChanged(_admin(), newAdmin);
_setAdmin(newAdmin);
}
/**
* @dev Upgrade the backing implementation of the proxy.
* Only the admin can call this function.
* @param newImplementation Address of the new implementation.
*/
function upgradeTo(address newImplementation) external ifAdmin {
_upgradeTo(newImplementation);
}
/**
* @dev Upgrade the backing implementation of the proxy and call a function
* on the new implementation.
* This is useful to initialize the proxied contract.
* @param newImplementation Address of the new implementation.
* @param data Data to send as msg.data in the low level call.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
*/
function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin {
_upgradeTo(newImplementation);
(bool success, ) = newImplementation.delegatecall(data);
require(success);
}
/**
* @return adm The admin slot.
*/
function _admin() internal view returns (address adm) {
bytes32 slot = ADMIN_SLOT;
assembly {
adm := sload(slot)
}
}
/**
* @dev Sets the address of the proxy admin.
* @param newAdmin Address of the new proxy admin.
*/
function _setAdmin(address newAdmin) internal {
bytes32 slot = ADMIN_SLOT;
assembly {
sstore(slot, newAdmin)
}
}
/**
* @dev Only fall back when the sender is not the admin.
*/
function _willFallback() internal virtual override {
require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
super._willFallback();
}
} | /**
* @title VaultRouter
* @dev This contract combines an upgradeability with an authorization
* mechanism for administrative tasks.
* All external functions in this contract must be guarded by the
* `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity
* feature proposal that would enable this to be done automatically.
*/ | NatSpecMultiLine | changeAdmin | function changeAdmin(address newAdmin) external ifAdmin {
require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address");
emit AdminChanged(_admin(), newAdmin);
_setAdmin(newAdmin);
}
| /**
* @dev Changes the admin of the.
* Only the current admin can call this function.
* @param newAdmin Address to transfer administration to.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | ipfs://38ce5c6af5f119df33d6c128c761796ed6341eb5d78756f5cf54835a34958588 | {
"func_code_index": [
2354,
2601
]
} | 415 |
VaultRouter | VaultRouter.sol | 0x9e9f4b105e10a66b27c771811ce4defbd44567d2 | Solidity | VaultRouter | contract VaultRouter is BaseFallback {
/**
* Contract constructor.
* @param _logic address of the initial implementation.
* @param _admin_ Address of the administrator.
* @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
* This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
*/
constructor(
address _logic,
address _admin_,
bytes memory _data
) payable BaseFallback(_logic, _data) {
assert(ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
_setAdmin(_admin_);
}
/**
* @dev Emitted when the administration has been transferred.
* @param previousAdmin Address of the previous admin.
* @param newAdmin Address of the new admin.
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @dev Modifier to check whether the `msg.sender` is the admin.
* If it is, it will run the function. Otherwise, it will delegate the call
* to the implementation.
*/
modifier ifAdmin() {
if (msg.sender == _admin()) {
_;
} else {
_fallback();
}
}
/**
* @return addr The address of the admin.
*/
function admin() external ifAdmin returns (address addr) {
addr = _admin();
}
/**
* @return addr The address of the implementation.
*/
function implementation() external ifAdmin returns (address addr) {
addr = _implementation();
}
/**
* @dev Changes the admin of the.
* Only the current admin can call this function.
* @param newAdmin Address to transfer administration to.
*/
function changeAdmin(address newAdmin) external ifAdmin {
require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address");
emit AdminChanged(_admin(), newAdmin);
_setAdmin(newAdmin);
}
/**
* @dev Upgrade the backing implementation of the proxy.
* Only the admin can call this function.
* @param newImplementation Address of the new implementation.
*/
function upgradeTo(address newImplementation) external ifAdmin {
_upgradeTo(newImplementation);
}
/**
* @dev Upgrade the backing implementation of the proxy and call a function
* on the new implementation.
* This is useful to initialize the proxied contract.
* @param newImplementation Address of the new implementation.
* @param data Data to send as msg.data in the low level call.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
*/
function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin {
_upgradeTo(newImplementation);
(bool success, ) = newImplementation.delegatecall(data);
require(success);
}
/**
* @return adm The admin slot.
*/
function _admin() internal view returns (address adm) {
bytes32 slot = ADMIN_SLOT;
assembly {
adm := sload(slot)
}
}
/**
* @dev Sets the address of the proxy admin.
* @param newAdmin Address of the new proxy admin.
*/
function _setAdmin(address newAdmin) internal {
bytes32 slot = ADMIN_SLOT;
assembly {
sstore(slot, newAdmin)
}
}
/**
* @dev Only fall back when the sender is not the admin.
*/
function _willFallback() internal virtual override {
require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
super._willFallback();
}
} | /**
* @title VaultRouter
* @dev This contract combines an upgradeability with an authorization
* mechanism for administrative tasks.
* All external functions in this contract must be guarded by the
* `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity
* feature proposal that would enable this to be done automatically.
*/ | NatSpecMultiLine | upgradeTo | function upgradeTo(address newImplementation) external ifAdmin {
_upgradeTo(newImplementation);
}
| /**
* @dev Upgrade the backing implementation of the proxy.
* Only the admin can call this function.
* @param newImplementation Address of the new implementation.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | ipfs://38ce5c6af5f119df33d6c128c761796ed6341eb5d78756f5cf54835a34958588 | {
"func_code_index": [
2799,
2915
]
} | 416 |
VaultRouter | VaultRouter.sol | 0x9e9f4b105e10a66b27c771811ce4defbd44567d2 | Solidity | VaultRouter | contract VaultRouter is BaseFallback {
/**
* Contract constructor.
* @param _logic address of the initial implementation.
* @param _admin_ Address of the administrator.
* @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
* This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
*/
constructor(
address _logic,
address _admin_,
bytes memory _data
) payable BaseFallback(_logic, _data) {
assert(ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
_setAdmin(_admin_);
}
/**
* @dev Emitted when the administration has been transferred.
* @param previousAdmin Address of the previous admin.
* @param newAdmin Address of the new admin.
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @dev Modifier to check whether the `msg.sender` is the admin.
* If it is, it will run the function. Otherwise, it will delegate the call
* to the implementation.
*/
modifier ifAdmin() {
if (msg.sender == _admin()) {
_;
} else {
_fallback();
}
}
/**
* @return addr The address of the admin.
*/
function admin() external ifAdmin returns (address addr) {
addr = _admin();
}
/**
* @return addr The address of the implementation.
*/
function implementation() external ifAdmin returns (address addr) {
addr = _implementation();
}
/**
* @dev Changes the admin of the.
* Only the current admin can call this function.
* @param newAdmin Address to transfer administration to.
*/
function changeAdmin(address newAdmin) external ifAdmin {
require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address");
emit AdminChanged(_admin(), newAdmin);
_setAdmin(newAdmin);
}
/**
* @dev Upgrade the backing implementation of the proxy.
* Only the admin can call this function.
* @param newImplementation Address of the new implementation.
*/
function upgradeTo(address newImplementation) external ifAdmin {
_upgradeTo(newImplementation);
}
/**
* @dev Upgrade the backing implementation of the proxy and call a function
* on the new implementation.
* This is useful to initialize the proxied contract.
* @param newImplementation Address of the new implementation.
* @param data Data to send as msg.data in the low level call.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
*/
function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin {
_upgradeTo(newImplementation);
(bool success, ) = newImplementation.delegatecall(data);
require(success);
}
/**
* @return adm The admin slot.
*/
function _admin() internal view returns (address adm) {
bytes32 slot = ADMIN_SLOT;
assembly {
adm := sload(slot)
}
}
/**
* @dev Sets the address of the proxy admin.
* @param newAdmin Address of the new proxy admin.
*/
function _setAdmin(address newAdmin) internal {
bytes32 slot = ADMIN_SLOT;
assembly {
sstore(slot, newAdmin)
}
}
/**
* @dev Only fall back when the sender is not the admin.
*/
function _willFallback() internal virtual override {
require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
super._willFallback();
}
} | /**
* @title VaultRouter
* @dev This contract combines an upgradeability with an authorization
* mechanism for administrative tasks.
* All external functions in this contract must be guarded by the
* `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity
* feature proposal that would enable this to be done automatically.
*/ | NatSpecMultiLine | upgradeToAndCall | function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin {
_upgradeTo(newImplementation);
(bool success, ) = newImplementation.delegatecall(data);
require(success);
}
| /**
* @dev Upgrade the backing implementation of the proxy and call a function
* on the new implementation.
* This is useful to initialize the proxied contract.
* @param newImplementation Address of the new implementation.
* @param data Data to send as msg.data in the low level call.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | ipfs://38ce5c6af5f119df33d6c128c761796ed6341eb5d78756f5cf54835a34958588 | {
"func_code_index": [
3458,
3703
]
} | 417 |
VaultRouter | VaultRouter.sol | 0x9e9f4b105e10a66b27c771811ce4defbd44567d2 | Solidity | VaultRouter | contract VaultRouter is BaseFallback {
/**
* Contract constructor.
* @param _logic address of the initial implementation.
* @param _admin_ Address of the administrator.
* @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
* This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
*/
constructor(
address _logic,
address _admin_,
bytes memory _data
) payable BaseFallback(_logic, _data) {
assert(ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
_setAdmin(_admin_);
}
/**
* @dev Emitted when the administration has been transferred.
* @param previousAdmin Address of the previous admin.
* @param newAdmin Address of the new admin.
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @dev Modifier to check whether the `msg.sender` is the admin.
* If it is, it will run the function. Otherwise, it will delegate the call
* to the implementation.
*/
modifier ifAdmin() {
if (msg.sender == _admin()) {
_;
} else {
_fallback();
}
}
/**
* @return addr The address of the admin.
*/
function admin() external ifAdmin returns (address addr) {
addr = _admin();
}
/**
* @return addr The address of the implementation.
*/
function implementation() external ifAdmin returns (address addr) {
addr = _implementation();
}
/**
* @dev Changes the admin of the.
* Only the current admin can call this function.
* @param newAdmin Address to transfer administration to.
*/
function changeAdmin(address newAdmin) external ifAdmin {
require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address");
emit AdminChanged(_admin(), newAdmin);
_setAdmin(newAdmin);
}
/**
* @dev Upgrade the backing implementation of the proxy.
* Only the admin can call this function.
* @param newImplementation Address of the new implementation.
*/
function upgradeTo(address newImplementation) external ifAdmin {
_upgradeTo(newImplementation);
}
/**
* @dev Upgrade the backing implementation of the proxy and call a function
* on the new implementation.
* This is useful to initialize the proxied contract.
* @param newImplementation Address of the new implementation.
* @param data Data to send as msg.data in the low level call.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
*/
function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin {
_upgradeTo(newImplementation);
(bool success, ) = newImplementation.delegatecall(data);
require(success);
}
/**
* @return adm The admin slot.
*/
function _admin() internal view returns (address adm) {
bytes32 slot = ADMIN_SLOT;
assembly {
adm := sload(slot)
}
}
/**
* @dev Sets the address of the proxy admin.
* @param newAdmin Address of the new proxy admin.
*/
function _setAdmin(address newAdmin) internal {
bytes32 slot = ADMIN_SLOT;
assembly {
sstore(slot, newAdmin)
}
}
/**
* @dev Only fall back when the sender is not the admin.
*/
function _willFallback() internal virtual override {
require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
super._willFallback();
}
} | /**
* @title VaultRouter
* @dev This contract combines an upgradeability with an authorization
* mechanism for administrative tasks.
* All external functions in this contract must be guarded by the
* `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity
* feature proposal that would enable this to be done automatically.
*/ | NatSpecMultiLine | _admin | function _admin() internal view returns (address adm) {
bytes32 slot = ADMIN_SLOT;
assembly {
adm := sload(slot)
}
}
| /**
* @return adm The admin slot.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | ipfs://38ce5c6af5f119df33d6c128c761796ed6341eb5d78756f5cf54835a34958588 | {
"func_code_index": [
3760,
3926
]
} | 418 |
VaultRouter | VaultRouter.sol | 0x9e9f4b105e10a66b27c771811ce4defbd44567d2 | Solidity | VaultRouter | contract VaultRouter is BaseFallback {
/**
* Contract constructor.
* @param _logic address of the initial implementation.
* @param _admin_ Address of the administrator.
* @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
* This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
*/
constructor(
address _logic,
address _admin_,
bytes memory _data
) payable BaseFallback(_logic, _data) {
assert(ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
_setAdmin(_admin_);
}
/**
* @dev Emitted when the administration has been transferred.
* @param previousAdmin Address of the previous admin.
* @param newAdmin Address of the new admin.
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @dev Modifier to check whether the `msg.sender` is the admin.
* If it is, it will run the function. Otherwise, it will delegate the call
* to the implementation.
*/
modifier ifAdmin() {
if (msg.sender == _admin()) {
_;
} else {
_fallback();
}
}
/**
* @return addr The address of the admin.
*/
function admin() external ifAdmin returns (address addr) {
addr = _admin();
}
/**
* @return addr The address of the implementation.
*/
function implementation() external ifAdmin returns (address addr) {
addr = _implementation();
}
/**
* @dev Changes the admin of the.
* Only the current admin can call this function.
* @param newAdmin Address to transfer administration to.
*/
function changeAdmin(address newAdmin) external ifAdmin {
require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address");
emit AdminChanged(_admin(), newAdmin);
_setAdmin(newAdmin);
}
/**
* @dev Upgrade the backing implementation of the proxy.
* Only the admin can call this function.
* @param newImplementation Address of the new implementation.
*/
function upgradeTo(address newImplementation) external ifAdmin {
_upgradeTo(newImplementation);
}
/**
* @dev Upgrade the backing implementation of the proxy and call a function
* on the new implementation.
* This is useful to initialize the proxied contract.
* @param newImplementation Address of the new implementation.
* @param data Data to send as msg.data in the low level call.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
*/
function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin {
_upgradeTo(newImplementation);
(bool success, ) = newImplementation.delegatecall(data);
require(success);
}
/**
* @return adm The admin slot.
*/
function _admin() internal view returns (address adm) {
bytes32 slot = ADMIN_SLOT;
assembly {
adm := sload(slot)
}
}
/**
* @dev Sets the address of the proxy admin.
* @param newAdmin Address of the new proxy admin.
*/
function _setAdmin(address newAdmin) internal {
bytes32 slot = ADMIN_SLOT;
assembly {
sstore(slot, newAdmin)
}
}
/**
* @dev Only fall back when the sender is not the admin.
*/
function _willFallback() internal virtual override {
require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
super._willFallback();
}
} | /**
* @title VaultRouter
* @dev This contract combines an upgradeability with an authorization
* mechanism for administrative tasks.
* All external functions in this contract must be guarded by the
* `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity
* feature proposal that would enable this to be done automatically.
*/ | NatSpecMultiLine | _setAdmin | function _setAdmin(address newAdmin) internal {
bytes32 slot = ADMIN_SLOT;
assembly {
sstore(slot, newAdmin)
}
}
| /**
* @dev Sets the address of the proxy admin.
* @param newAdmin Address of the new proxy admin.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | ipfs://38ce5c6af5f119df33d6c128c761796ed6341eb5d78756f5cf54835a34958588 | {
"func_code_index": [
4053,
4217
]
} | 419 |
VaultRouter | VaultRouter.sol | 0x9e9f4b105e10a66b27c771811ce4defbd44567d2 | Solidity | VaultRouter | contract VaultRouter is BaseFallback {
/**
* Contract constructor.
* @param _logic address of the initial implementation.
* @param _admin_ Address of the administrator.
* @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
* This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
*/
constructor(
address _logic,
address _admin_,
bytes memory _data
) payable BaseFallback(_logic, _data) {
assert(ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
_setAdmin(_admin_);
}
/**
* @dev Emitted when the administration has been transferred.
* @param previousAdmin Address of the previous admin.
* @param newAdmin Address of the new admin.
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @dev Modifier to check whether the `msg.sender` is the admin.
* If it is, it will run the function. Otherwise, it will delegate the call
* to the implementation.
*/
modifier ifAdmin() {
if (msg.sender == _admin()) {
_;
} else {
_fallback();
}
}
/**
* @return addr The address of the admin.
*/
function admin() external ifAdmin returns (address addr) {
addr = _admin();
}
/**
* @return addr The address of the implementation.
*/
function implementation() external ifAdmin returns (address addr) {
addr = _implementation();
}
/**
* @dev Changes the admin of the.
* Only the current admin can call this function.
* @param newAdmin Address to transfer administration to.
*/
function changeAdmin(address newAdmin) external ifAdmin {
require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address");
emit AdminChanged(_admin(), newAdmin);
_setAdmin(newAdmin);
}
/**
* @dev Upgrade the backing implementation of the proxy.
* Only the admin can call this function.
* @param newImplementation Address of the new implementation.
*/
function upgradeTo(address newImplementation) external ifAdmin {
_upgradeTo(newImplementation);
}
/**
* @dev Upgrade the backing implementation of the proxy and call a function
* on the new implementation.
* This is useful to initialize the proxied contract.
* @param newImplementation Address of the new implementation.
* @param data Data to send as msg.data in the low level call.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
*/
function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin {
_upgradeTo(newImplementation);
(bool success, ) = newImplementation.delegatecall(data);
require(success);
}
/**
* @return adm The admin slot.
*/
function _admin() internal view returns (address adm) {
bytes32 slot = ADMIN_SLOT;
assembly {
adm := sload(slot)
}
}
/**
* @dev Sets the address of the proxy admin.
* @param newAdmin Address of the new proxy admin.
*/
function _setAdmin(address newAdmin) internal {
bytes32 slot = ADMIN_SLOT;
assembly {
sstore(slot, newAdmin)
}
}
/**
* @dev Only fall back when the sender is not the admin.
*/
function _willFallback() internal virtual override {
require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
super._willFallback();
}
} | /**
* @title VaultRouter
* @dev This contract combines an upgradeability with an authorization
* mechanism for administrative tasks.
* All external functions in this contract must be guarded by the
* `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity
* feature proposal that would enable this to be done automatically.
*/ | NatSpecMultiLine | _willFallback | function _willFallback() internal virtual override {
require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
super._willFallback();
}
| /**
* @dev Only fall back when the sender is not the admin.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | ipfs://38ce5c6af5f119df33d6c128c761796ed6341eb5d78756f5cf54835a34958588 | {
"func_code_index": [
4300,
4492
]
} | 420 |
Creature | contracts/Strings.sol | 0xda396a2fc5f0e3a87a874757f1317102f49da5b0 | Solidity | Strings | library Strings {
// via https://github.com/oraclize/ethereum-api/blob/master/oraclizeAPI_0.5.sol
function strConcat(string memory _a, string memory _b, string memory _c, string memory _d, string memory _e) internal pure returns (string memory) {
bytes memory _ba = bytes(_a);
bytes memory _bb = bytes(_b);
bytes memory _bc = bytes(_c);
bytes memory _bd = bytes(_d);
bytes memory _be = bytes(_e);
string memory abcde = new string(_ba.length + _bb.length + _bc.length + _bd.length + _be.length);
bytes memory babcde = bytes(abcde);
uint k = 0;
for (uint i = 0; i < _ba.length; i++) babcde[k++] = _ba[i];
for (uint i = 0; i < _bb.length; i++) babcde[k++] = _bb[i];
for (uint i = 0; i < _bc.length; i++) babcde[k++] = _bc[i];
for (uint i = 0; i < _bd.length; i++) babcde[k++] = _bd[i];
for (uint i = 0; i < _be.length; i++) babcde[k++] = _be[i];
return string(babcde);
}
function strConcat(string memory _a, string memory _b, string memory _c, string memory _d) internal pure returns (string memory) {
return strConcat(_a, _b, _c, _d, "");
}
function strConcat(string memory _a, string memory _b, string memory _c) internal pure returns (string memory) {
return strConcat(_a, _b, _c, "", "");
}
function strConcat(string memory _a, string memory _b) internal pure returns (string memory) {
return strConcat(_a, _b, "", "", "");
}
function uint2str(uint _i) internal pure returns (string memory _uintAsString) {
if (_i == 0) {
return "0";
}
uint j = _i;
uint len;
while (j != 0) {
len++;
j /= 10;
}
bytes memory bstr = new bytes(len);
uint k = len - 1;
while (_i != 0) {
bstr[k--] = byte(uint8(48 + _i % 10));
_i /= 10;
}
return string(bstr);
}
function toString(address x) internal pure returns (string memory) {
bytes memory b = new bytes(20);
for (uint i = 0; i < 20; i++)
b[i] = byte(uint8(uint(x) / (2**(8*(19 - i)))));
return string(b);
}
} | strConcat | function strConcat(string memory _a, string memory _b, string memory _c, string memory _d, string memory _e) internal pure returns (string memory) {
bytes memory _ba = bytes(_a);
bytes memory _bb = bytes(_b);
bytes memory _bc = bytes(_c);
bytes memory _bd = bytes(_d);
bytes memory _be = bytes(_e);
string memory abcde = new string(_ba.length + _bb.length + _bc.length + _bd.length + _be.length);
bytes memory babcde = bytes(abcde);
uint k = 0;
for (uint i = 0; i < _ba.length; i++) babcde[k++] = _ba[i];
for (uint i = 0; i < _bb.length; i++) babcde[k++] = _bb[i];
for (uint i = 0; i < _bc.length; i++) babcde[k++] = _bc[i];
for (uint i = 0; i < _bd.length; i++) babcde[k++] = _bd[i];
for (uint i = 0; i < _be.length; i++) babcde[k++] = _be[i];
return string(babcde);
}
| // via https://github.com/oraclize/ethereum-api/blob/master/oraclizeAPI_0.5.sol | LineComment | v0.5.12+commit.7709ece9 | None | bzzr://f67c4a3b52bfc13e940ea61d0409c8ac3aedf1b9704cc9b99e361d7fc7a469e2 | {
"func_code_index": [
102,
977
]
} | 421 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | totalSupply | function totalSupply() external view returns (uint256);
| /**
* @dev Returns the amount of tokens in existence.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
94,
154
]
} | 422 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | balanceOf | function balanceOf(address account) external view returns (uint256);
| /**
* @dev Returns the amount of tokens owned by `account`.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
237,
310
]
} | 423 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | transfer | function transfer(address recipient, uint256 amount) external returns (bool);
| /**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
534,
616
]
} | 424 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | allowance | function allowance(address owner, address spender) external view returns (uint256);
| /**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
895,
983
]
} | 425 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | approve | function approve(address spender, uint256 amount) external returns (bool);
| /**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
1647,
1726
]
} | 426 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | transferFrom | function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
| /**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
2039,
2141
]
} | 427 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | SafeMath | library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | add | function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
| /**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
259,
445
]
} | 428 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | SafeMath | library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | sub | function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
| /**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
723,
864
]
} | 429 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | SafeMath | library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | sub | function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
| /**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
1162,
1359
]
} | 430 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | SafeMath | library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | mul | function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
| /**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
1613,
2089
]
} | 431 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | SafeMath | library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | div | function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
| /**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
2560,
2697
]
} | 432 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | SafeMath | library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | div | function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
| /**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
3188,
3471
]
} | 433 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | SafeMath | library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | mod | function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
| /**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
3931,
4066
]
} | 434 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | SafeMath | library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | mod | function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
| /**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
4546,
4717
]
} | 435 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | Address | library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
} | isContract | function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
| /**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
606,
1230
]
} | 436 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | Address | library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
} | sendValue | function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
| /**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
2160,
2562
]
} | 437 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | Address | library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
} | functionCall | function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
| /**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
3318,
3496
]
} | 438 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | Address | library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
} | functionCall | function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
| /**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
3721,
3922
]
} | 439 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | Address | library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
} | functionCallWithValue | function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
| /**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
4292,
4523
]
} | 440 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | Address | library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
} | functionCallWithValue | function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
| /**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
4774,
5095
]
} | 441 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | Ownable | contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor () internal {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
} | owner | function owner() public view returns (address) {
return _owner;
}
| /**
* @dev Returns the address of the current owner.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
497,
581
]
} | 442 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | Ownable | contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor () internal {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
} | renounceOwnership | function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
| /**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
1139,
1292
]
} | 443 |
||
PuppyToken | PuppyToken.sol | 0xd326b9965f4ba85878d115f535167dd2305c8eb5 | Solidity | Ownable | contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor () internal {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
} | transferOwnership | function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
| /**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | ipfs://ab18968b15b54a1237ca5750c8eaffc645d40798a62a5441626e6241ea7a2f8e | {
"func_code_index": [
1442,
1691
]
} | 444 |
||
idoFactory | tokenVesting.sol | 0xb9f4fcc06b48cd072aa3dd62b9287f28eb35c13b | Solidity | PostDeliveryCrowdsale | contract PostDeliveryCrowdsale is TimedCrowdsale {
using SafeMath for uint256;
uint contractCreationTime;
uint monthTime = 2592000;
uint public timeToWait;
uint public initialEmission;
uint public months;
uint public lastFunctioncalled;
mapping(address => uint256) private _balances;
mapping(address => uint256) private _totalClaimed;
__unstable__TokenVault private _vault;
constructor(uint _initialEmission, uint _timeToWait, uint _months) public {
require(_timeToWait>0, "TimeToWait is 0");
uint closingTime = closingTime();
contractCreationTime = closingTime;
initialEmission = _initialEmission;
timeToWait = _timeToWait ;
months = _months;
_vault = new __unstable__TokenVault();
}
function currentRetractableTokens(address beneficiary) view public returns(uint){
require(hasClosed(), "PostDeliveryCrowdsale: not closed");
uint256 amount = _balances[beneficiary];
uint realAmount;
if(amount<=0){
return 0;
}
uint since = block.timestamp - contractCreationTime;
if(initialEmission==100){
return amount;
}
else if((since/monthTime)< timeToWait){
realAmount = ((initialEmission*(amount+_totalClaimed[beneficiary]))/100) - _totalClaimed[beneficiary];
return realAmount;
}
else {
uint restEmission = 100 - initialEmission;
realAmount = ((initialEmission*(amount+_totalClaimed[beneficiary]))/100) + (restEmission*(amount + _totalClaimed[beneficiary])*((since/monthTime) + 1 - timeToWait)/months/100) - _totalClaimed[beneficiary];
if(realAmount==0){
return 0;
}
if(realAmount>_balances[beneficiary]){
realAmount = _balances[beneficiary];
}
return realAmount;
}
}
/**
* @dev Withdraw tokens only after crowdsale ends.
* @param beneficiary Whose tokens will be withdrawn.
*/
function withdrawTokens(address beneficiary) public {
require(hasClosed(), "PostDeliveryCrowdsale: not closed");
uint256 amount = _balances[beneficiary];
uint realAmount;
require(amount > 0, "PostDeliveryCrowdsale: beneficiary is not due any tokens");
uint since = block.timestamp - contractCreationTime;
if(initialEmission==100){
_balances[beneficiary] = 0;
_vault.transfer(token(), beneficiary, amount);
_totalClaimed[beneficiary] += amount;
lastFunctioncalled = 1;
}
else if((since/monthTime)< timeToWait){
realAmount = ((initialEmission*amount)/100) - _totalClaimed[beneficiary];
require(realAmount>0,"Current Retractable Amount 0");
_balances[beneficiary] -= realAmount ;
_vault.transfer(token(), beneficiary, realAmount);
_totalClaimed[beneficiary] += realAmount;
lastFunctioncalled =2;
}
else {
uint restEmission = 100 - initialEmission;
realAmount = ((initialEmission*(amount+_totalClaimed[beneficiary]))/100) + (restEmission*(amount + _totalClaimed[beneficiary])*((since/monthTime) + 1 - timeToWait)/months/100) - _totalClaimed[beneficiary];
require(realAmount>0,"Current Retractable Amount 0");
if(realAmount>_balances[beneficiary]){
_totalClaimed[beneficiary] += _balances[beneficiary];
realAmount = _balances[beneficiary];
lastFunctioncalled = 3;
}
_balances[beneficiary] -= realAmount ;
_vault.transfer(token(), beneficiary, realAmount);
_totalClaimed[beneficiary] += realAmount;
lastFunctioncalled = 4;
}
}
/**
* @return the balance of an account.
*/
function balanceOf(address account) public view returns (uint256) {
return _balances[account];
}
/**
* @dev Overrides parent by storing due balances, and delivering tokens to the vault instead of the end user. This
* ensures that the tokens will be available by the time they are withdrawn (which may not be the case if
* `_deliverTokens` was called later).
* @param beneficiary Token purchaser
* @param tokenAmount Amount of tokens purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_balances[beneficiary] = _balances[beneficiary].add(tokenAmount);
_deliverTokens(address(_vault), tokenAmount);
}
} | /**
* @title PostDeliveryCrowdsale
* @dev Crowdsale that locks tokens from withdrawal until it ends.
*/ | NatSpecMultiLine | withdrawTokens | function withdrawTokens(address beneficiary) public {
require(hasClosed(), "PostDeliveryCrowdsale: not closed");
uint256 amount = _balances[beneficiary];
uint realAmount;
require(amount > 0, "PostDeliveryCrowdsale: beneficiary is not due any tokens");
uint since = block.timestamp - contractCreationTime;
if(initialEmission==100){
_balances[beneficiary] = 0;
_vault.transfer(token(), beneficiary, amount);
_totalClaimed[beneficiary] += amount;
lastFunctioncalled = 1;
}
else if((since/monthTime)< timeToWait){
realAmount = ((initialEmission*amount)/100) - _totalClaimed[beneficiary];
require(realAmount>0,"Current Retractable Amount 0");
_balances[beneficiary] -= realAmount ;
_vault.transfer(token(), beneficiary, realAmount);
_totalClaimed[beneficiary] += realAmount;
lastFunctioncalled =2;
}
else {
uint restEmission = 100 - initialEmission;
realAmount = ((initialEmission*(amount+_totalClaimed[beneficiary]))/100) + (restEmission*(amount + _totalClaimed[beneficiary])*((since/monthTime) + 1 - timeToWait)/months/100) - _totalClaimed[beneficiary];
require(realAmount>0,"Current Retractable Amount 0");
if(realAmount>_balances[beneficiary]){
_totalClaimed[beneficiary] += _balances[beneficiary];
realAmount = _balances[beneficiary];
lastFunctioncalled = 3;
}
_balances[beneficiary] -= realAmount ;
_vault.transfer(token(), beneficiary, realAmount);
_totalClaimed[beneficiary] += realAmount;
lastFunctioncalled = 4;
}
}
| /**
* @dev Withdraw tokens only after crowdsale ends.
* @param beneficiary Whose tokens will be withdrawn.
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | GNU GPLv3 | bzzr://710c3fd9dd1e5dbde5ea7c504730f3a39f4e4d99d3d5f7d78df96d15723a33ee | {
"func_code_index": [
2165,
4036
]
} | 445 |
idoFactory | tokenVesting.sol | 0xb9f4fcc06b48cd072aa3dd62b9287f28eb35c13b | Solidity | PostDeliveryCrowdsale | contract PostDeliveryCrowdsale is TimedCrowdsale {
using SafeMath for uint256;
uint contractCreationTime;
uint monthTime = 2592000;
uint public timeToWait;
uint public initialEmission;
uint public months;
uint public lastFunctioncalled;
mapping(address => uint256) private _balances;
mapping(address => uint256) private _totalClaimed;
__unstable__TokenVault private _vault;
constructor(uint _initialEmission, uint _timeToWait, uint _months) public {
require(_timeToWait>0, "TimeToWait is 0");
uint closingTime = closingTime();
contractCreationTime = closingTime;
initialEmission = _initialEmission;
timeToWait = _timeToWait ;
months = _months;
_vault = new __unstable__TokenVault();
}
function currentRetractableTokens(address beneficiary) view public returns(uint){
require(hasClosed(), "PostDeliveryCrowdsale: not closed");
uint256 amount = _balances[beneficiary];
uint realAmount;
if(amount<=0){
return 0;
}
uint since = block.timestamp - contractCreationTime;
if(initialEmission==100){
return amount;
}
else if((since/monthTime)< timeToWait){
realAmount = ((initialEmission*(amount+_totalClaimed[beneficiary]))/100) - _totalClaimed[beneficiary];
return realAmount;
}
else {
uint restEmission = 100 - initialEmission;
realAmount = ((initialEmission*(amount+_totalClaimed[beneficiary]))/100) + (restEmission*(amount + _totalClaimed[beneficiary])*((since/monthTime) + 1 - timeToWait)/months/100) - _totalClaimed[beneficiary];
if(realAmount==0){
return 0;
}
if(realAmount>_balances[beneficiary]){
realAmount = _balances[beneficiary];
}
return realAmount;
}
}
/**
* @dev Withdraw tokens only after crowdsale ends.
* @param beneficiary Whose tokens will be withdrawn.
*/
function withdrawTokens(address beneficiary) public {
require(hasClosed(), "PostDeliveryCrowdsale: not closed");
uint256 amount = _balances[beneficiary];
uint realAmount;
require(amount > 0, "PostDeliveryCrowdsale: beneficiary is not due any tokens");
uint since = block.timestamp - contractCreationTime;
if(initialEmission==100){
_balances[beneficiary] = 0;
_vault.transfer(token(), beneficiary, amount);
_totalClaimed[beneficiary] += amount;
lastFunctioncalled = 1;
}
else if((since/monthTime)< timeToWait){
realAmount = ((initialEmission*amount)/100) - _totalClaimed[beneficiary];
require(realAmount>0,"Current Retractable Amount 0");
_balances[beneficiary] -= realAmount ;
_vault.transfer(token(), beneficiary, realAmount);
_totalClaimed[beneficiary] += realAmount;
lastFunctioncalled =2;
}
else {
uint restEmission = 100 - initialEmission;
realAmount = ((initialEmission*(amount+_totalClaimed[beneficiary]))/100) + (restEmission*(amount + _totalClaimed[beneficiary])*((since/monthTime) + 1 - timeToWait)/months/100) - _totalClaimed[beneficiary];
require(realAmount>0,"Current Retractable Amount 0");
if(realAmount>_balances[beneficiary]){
_totalClaimed[beneficiary] += _balances[beneficiary];
realAmount = _balances[beneficiary];
lastFunctioncalled = 3;
}
_balances[beneficiary] -= realAmount ;
_vault.transfer(token(), beneficiary, realAmount);
_totalClaimed[beneficiary] += realAmount;
lastFunctioncalled = 4;
}
}
/**
* @return the balance of an account.
*/
function balanceOf(address account) public view returns (uint256) {
return _balances[account];
}
/**
* @dev Overrides parent by storing due balances, and delivering tokens to the vault instead of the end user. This
* ensures that the tokens will be available by the time they are withdrawn (which may not be the case if
* `_deliverTokens` was called later).
* @param beneficiary Token purchaser
* @param tokenAmount Amount of tokens purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_balances[beneficiary] = _balances[beneficiary].add(tokenAmount);
_deliverTokens(address(_vault), tokenAmount);
}
} | /**
* @title PostDeliveryCrowdsale
* @dev Crowdsale that locks tokens from withdrawal until it ends.
*/ | NatSpecMultiLine | balanceOf | function balanceOf(address account) public view returns (uint256) {
return _balances[account];
}
| /**
* @return the balance of an account.
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | GNU GPLv3 | bzzr://710c3fd9dd1e5dbde5ea7c504730f3a39f4e4d99d3d5f7d78df96d15723a33ee | {
"func_code_index": [
4100,
4215
]
} | 446 |
idoFactory | tokenVesting.sol | 0xb9f4fcc06b48cd072aa3dd62b9287f28eb35c13b | Solidity | PostDeliveryCrowdsale | contract PostDeliveryCrowdsale is TimedCrowdsale {
using SafeMath for uint256;
uint contractCreationTime;
uint monthTime = 2592000;
uint public timeToWait;
uint public initialEmission;
uint public months;
uint public lastFunctioncalled;
mapping(address => uint256) private _balances;
mapping(address => uint256) private _totalClaimed;
__unstable__TokenVault private _vault;
constructor(uint _initialEmission, uint _timeToWait, uint _months) public {
require(_timeToWait>0, "TimeToWait is 0");
uint closingTime = closingTime();
contractCreationTime = closingTime;
initialEmission = _initialEmission;
timeToWait = _timeToWait ;
months = _months;
_vault = new __unstable__TokenVault();
}
function currentRetractableTokens(address beneficiary) view public returns(uint){
require(hasClosed(), "PostDeliveryCrowdsale: not closed");
uint256 amount = _balances[beneficiary];
uint realAmount;
if(amount<=0){
return 0;
}
uint since = block.timestamp - contractCreationTime;
if(initialEmission==100){
return amount;
}
else if((since/monthTime)< timeToWait){
realAmount = ((initialEmission*(amount+_totalClaimed[beneficiary]))/100) - _totalClaimed[beneficiary];
return realAmount;
}
else {
uint restEmission = 100 - initialEmission;
realAmount = ((initialEmission*(amount+_totalClaimed[beneficiary]))/100) + (restEmission*(amount + _totalClaimed[beneficiary])*((since/monthTime) + 1 - timeToWait)/months/100) - _totalClaimed[beneficiary];
if(realAmount==0){
return 0;
}
if(realAmount>_balances[beneficiary]){
realAmount = _balances[beneficiary];
}
return realAmount;
}
}
/**
* @dev Withdraw tokens only after crowdsale ends.
* @param beneficiary Whose tokens will be withdrawn.
*/
function withdrawTokens(address beneficiary) public {
require(hasClosed(), "PostDeliveryCrowdsale: not closed");
uint256 amount = _balances[beneficiary];
uint realAmount;
require(amount > 0, "PostDeliveryCrowdsale: beneficiary is not due any tokens");
uint since = block.timestamp - contractCreationTime;
if(initialEmission==100){
_balances[beneficiary] = 0;
_vault.transfer(token(), beneficiary, amount);
_totalClaimed[beneficiary] += amount;
lastFunctioncalled = 1;
}
else if((since/monthTime)< timeToWait){
realAmount = ((initialEmission*amount)/100) - _totalClaimed[beneficiary];
require(realAmount>0,"Current Retractable Amount 0");
_balances[beneficiary] -= realAmount ;
_vault.transfer(token(), beneficiary, realAmount);
_totalClaimed[beneficiary] += realAmount;
lastFunctioncalled =2;
}
else {
uint restEmission = 100 - initialEmission;
realAmount = ((initialEmission*(amount+_totalClaimed[beneficiary]))/100) + (restEmission*(amount + _totalClaimed[beneficiary])*((since/monthTime) + 1 - timeToWait)/months/100) - _totalClaimed[beneficiary];
require(realAmount>0,"Current Retractable Amount 0");
if(realAmount>_balances[beneficiary]){
_totalClaimed[beneficiary] += _balances[beneficiary];
realAmount = _balances[beneficiary];
lastFunctioncalled = 3;
}
_balances[beneficiary] -= realAmount ;
_vault.transfer(token(), beneficiary, realAmount);
_totalClaimed[beneficiary] += realAmount;
lastFunctioncalled = 4;
}
}
/**
* @return the balance of an account.
*/
function balanceOf(address account) public view returns (uint256) {
return _balances[account];
}
/**
* @dev Overrides parent by storing due balances, and delivering tokens to the vault instead of the end user. This
* ensures that the tokens will be available by the time they are withdrawn (which may not be the case if
* `_deliverTokens` was called later).
* @param beneficiary Token purchaser
* @param tokenAmount Amount of tokens purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_balances[beneficiary] = _balances[beneficiary].add(tokenAmount);
_deliverTokens(address(_vault), tokenAmount);
}
} | /**
* @title PostDeliveryCrowdsale
* @dev Crowdsale that locks tokens from withdrawal until it ends.
*/ | NatSpecMultiLine | _processPurchase | function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_balances[beneficiary] = _balances[beneficiary].add(tokenAmount);
_deliverTokens(address(_vault), tokenAmount);
}
| /**
* @dev Overrides parent by storing due balances, and delivering tokens to the vault instead of the end user. This
* ensures that the tokens will be available by the time they are withdrawn (which may not be the case if
* `_deliverTokens` was called later).
* @param beneficiary Token purchaser
* @param tokenAmount Amount of tokens purchased
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | GNU GPLv3 | bzzr://710c3fd9dd1e5dbde5ea7c504730f3a39f4e4d99d3d5f7d78df96d15723a33ee | {
"func_code_index": [
4608,
4828
]
} | 447 |
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | SafeMath | library SafeMath {
/**
* @dev Multiplies two numbers, reverts on overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "multiplication constraint voilated");
return c;
}
/**
* @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, "division constraint voilated");
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "substracts constraint voilated");
uint256 c = a - b;
return c;
}
/**
* @dev Adds two numbers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "addition constraint voilated");
return c;
}
/**
* @dev Divides two numbers and returns the remainder (unsigned integer modulo),
* reverts when dividing by zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b != 0, "divides contraint voilated");
return a % b;
}
} | /**
* @title SafeMath
* @dev Math operations with safety checks that revert on error
*/ | NatSpecMultiLine | mul | function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "multiplication constraint voilated");
return c;
}
| /**
* @dev Multiplies two numbers, reverts on overflow.
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
94,
486
]
} | 448 |
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | SafeMath | library SafeMath {
/**
* @dev Multiplies two numbers, reverts on overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "multiplication constraint voilated");
return c;
}
/**
* @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, "division constraint voilated");
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "substracts constraint voilated");
uint256 c = a - b;
return c;
}
/**
* @dev Adds two numbers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "addition constraint voilated");
return c;
}
/**
* @dev Divides two numbers and returns the remainder (unsigned integer modulo),
* reverts when dividing by zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b != 0, "divides contraint voilated");
return a % b;
}
} | /**
* @title SafeMath
* @dev Math operations with safety checks that revert on error
*/ | NatSpecMultiLine | div | function div(uint256 a, uint256 b) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, "division constraint voilated");
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
| /**
* @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
604,
942
]
} | 449 |
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | SafeMath | library SafeMath {
/**
* @dev Multiplies two numbers, reverts on overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "multiplication constraint voilated");
return c;
}
/**
* @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, "division constraint voilated");
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "substracts constraint voilated");
uint256 c = a - b;
return c;
}
/**
* @dev Adds two numbers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "addition constraint voilated");
return c;
}
/**
* @dev Divides two numbers and returns the remainder (unsigned integer modulo),
* reverts when dividing by zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b != 0, "divides contraint voilated");
return a % b;
}
} | /**
* @title SafeMath
* @dev Math operations with safety checks that revert on error
*/ | NatSpecMultiLine | sub | function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "substracts constraint voilated");
uint256 c = a - b;
return c;
}
| /**
* @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
1063,
1250
]
} | 450 |
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | SafeMath | library SafeMath {
/**
* @dev Multiplies two numbers, reverts on overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "multiplication constraint voilated");
return c;
}
/**
* @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, "division constraint voilated");
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "substracts constraint voilated");
uint256 c = a - b;
return c;
}
/**
* @dev Adds two numbers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "addition constraint voilated");
return c;
}
/**
* @dev Divides two numbers and returns the remainder (unsigned integer modulo),
* reverts when dividing by zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b != 0, "divides contraint voilated");
return a % b;
}
} | /**
* @title SafeMath
* @dev Math operations with safety checks that revert on error
*/ | NatSpecMultiLine | add | function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "addition constraint voilated");
return c;
}
| /**
* @dev Adds two numbers, reverts on overflow.
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
1321,
1506
]
} | 451 |
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | SafeMath | library SafeMath {
/**
* @dev Multiplies two numbers, reverts on overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "multiplication constraint voilated");
return c;
}
/**
* @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, "division constraint voilated");
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "substracts constraint voilated");
uint256 c = a - b;
return c;
}
/**
* @dev Adds two numbers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "addition constraint voilated");
return c;
}
/**
* @dev Divides two numbers and returns the remainder (unsigned integer modulo),
* reverts when dividing by zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b != 0, "divides contraint voilated");
return a % b;
}
} | /**
* @title SafeMath
* @dev Math operations with safety checks that revert on error
*/ | NatSpecMultiLine | mod | function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b != 0, "divides contraint voilated");
return a % b;
}
| /**
* @dev Divides two numbers and returns the remainder (unsigned integer modulo),
* reverts when dividing by zero.
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
1649,
1808
]
} | 452 |
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | Ownable | contract Ownable {
address public owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev The Ownable constructor sets the original `owner` of the contract to the sender
* account.
*/
constructor() public{
owner = msg.sender;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(msg.sender == owner, "Ownable: only owner can execute");
_;
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferOwnership(address newOwner) public onlyOwner {
require(newOwner != address(0), "Ownable: new owner should not empty");
emit OwnershipTransferred(owner, newOwner);
owner = newOwner;
}
} | /**
* @title Ownable
* @dev The Ownable contract has an owner address, and provides basic authorization control
* functions, this simplifies the implementation of "user permissions".
*/ | NatSpecMultiLine | transferOwnership | function transferOwnership(address newOwner) public onlyOwner {
require(newOwner != address(0), "Ownable: new owner should not empty");
emit OwnershipTransferred(owner, newOwner);
owner = newOwner;
}
| /**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
657,
877
]
} | 453 |
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | Pausable | contract Pausable is Ownable {
event Pause();
event Unpause();
bool public paused = false;
/**
* @dev modifier to allow actions only when the contract IS paused
*/
modifier whenNotPaused() {
require(!paused, "Pausable: contract not paused");
_;
}
/**
* @dev modifier to allow actions only when the contract IS NOT paused
*/
modifier whenPaused {
require(paused, "Pausable: contract paused");
_;
}
/**
* @dev called by the owner to pause, triggers stopped state
*/
function pause() public onlyOwner whenNotPaused returns (bool) {
paused = true;
emit Pause();
return true;
}
/**
* @dev called by the owner to unpause, returns to normal state
*/
function unpause() public onlyOwner whenPaused returns (bool) {
paused = false;
emit Unpause();
return true;
}
} | pause | function pause() public onlyOwner whenNotPaused returns (bool) {
paused = true;
emit Pause();
return true;
}
| /**
* @dev called by the owner to pause, triggers stopped state
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
543,
672
]
} | 454 |
||
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | Pausable | contract Pausable is Ownable {
event Pause();
event Unpause();
bool public paused = false;
/**
* @dev modifier to allow actions only when the contract IS paused
*/
modifier whenNotPaused() {
require(!paused, "Pausable: contract not paused");
_;
}
/**
* @dev modifier to allow actions only when the contract IS NOT paused
*/
modifier whenPaused {
require(paused, "Pausable: contract paused");
_;
}
/**
* @dev called by the owner to pause, triggers stopped state
*/
function pause() public onlyOwner whenNotPaused returns (bool) {
paused = true;
emit Pause();
return true;
}
/**
* @dev called by the owner to unpause, returns to normal state
*/
function unpause() public onlyOwner whenPaused returns (bool) {
paused = false;
emit Unpause();
return true;
}
} | unpause | function unpause() public onlyOwner whenPaused returns (bool) {
paused = false;
emit Unpause();
return true;
}
| /**
* @dev called by the owner to unpause, returns to normal state
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
756,
887
]
} | 455 |
||
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | BasicToken | contract BasicToken is ERC20Basic {
using SafeMath for uint256;
mapping(address => uint256) balances;
/**
* @dev transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) public returns (bool) {
require(_to != address(0), "BasicToken: require to address");
// SafeMath.sub will throw if there is not enough balance.
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public view returns (uint256 balance) {
return balances[_owner];
}
} | /**
* @title Basic token
* @dev Basic version of StandardToken, with no allowances.
*/ | NatSpecMultiLine | transfer | function transfer(address _to, uint256 _value) public returns (bool) {
require(_to != address(0), "BasicToken: require to address");
// SafeMath.sub will throw if there is not enough balance.
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
| /**
* @dev transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
264,
646
]
} | 456 |
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | BasicToken | contract BasicToken is ERC20Basic {
using SafeMath for uint256;
mapping(address => uint256) balances;
/**
* @dev transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) public returns (bool) {
require(_to != address(0), "BasicToken: require to address");
// SafeMath.sub will throw if there is not enough balance.
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public view returns (uint256 balance) {
return balances[_owner];
}
} | /**
* @title Basic token
* @dev Basic version of StandardToken, with no allowances.
*/ | NatSpecMultiLine | balanceOf | function balanceOf(address _owner) public view returns (uint256 balance) {
return balances[_owner];
}
| /**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
850,
962
]
} | 457 |
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | StandardToken | contract StandardToken is ERC20, BasicToken {
mapping (address => mapping (address => uint256)) allowed;
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
require(_to != address(0), "StandardToken: receiver address empty");
uint256 _allowance = allowed[_from][msg.sender];
// Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
// require (_value <= _allowance);
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = _allowance.sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
*
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) public returns (bool) {
require(_spender != address(0), "StandardToken: spender address empty");
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
return allowed[_owner][_spender];
}
/**
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
*/
function increaseApproval (address _spender, uint256 _addedValue) public
returns (bool success) {
require(_spender != address(0), "StandardToken: spender address empty");
allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
function decreaseApproval (address _spender, uint256 _subtractedValue) public
returns (bool success) {
require(_spender != address(0), "StandardToken: spender address empty");
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue > oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* @dev https://github.com/ethereum/EIPs/issues/20
* @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/ | NatSpecMultiLine | transferFrom | function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
require(_to != address(0), "StandardToken: receiver address empty");
uint256 _allowance = allowed[_from][msg.sender];
// Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
// require (_value <= _allowance);
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = _allowance.sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
| /**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
386,
975
]
} | 458 |
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | StandardToken | contract StandardToken is ERC20, BasicToken {
mapping (address => mapping (address => uint256)) allowed;
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
require(_to != address(0), "StandardToken: receiver address empty");
uint256 _allowance = allowed[_from][msg.sender];
// Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
// require (_value <= _allowance);
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = _allowance.sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
*
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) public returns (bool) {
require(_spender != address(0), "StandardToken: spender address empty");
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
return allowed[_owner][_spender];
}
/**
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
*/
function increaseApproval (address _spender, uint256 _addedValue) public
returns (bool success) {
require(_spender != address(0), "StandardToken: spender address empty");
allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
function decreaseApproval (address _spender, uint256 _subtractedValue) public
returns (bool success) {
require(_spender != address(0), "StandardToken: spender address empty");
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue > oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* @dev https://github.com/ethereum/EIPs/issues/20
* @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/ | NatSpecMultiLine | approve | function approve(address _spender, uint256 _value) public returns (bool) {
require(_spender != address(0), "StandardToken: spender address empty");
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
| /**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
*
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
1605,
1878
]
} | 459 |
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | StandardToken | contract StandardToken is ERC20, BasicToken {
mapping (address => mapping (address => uint256)) allowed;
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
require(_to != address(0), "StandardToken: receiver address empty");
uint256 _allowance = allowed[_from][msg.sender];
// Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
// require (_value <= _allowance);
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = _allowance.sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
*
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) public returns (bool) {
require(_spender != address(0), "StandardToken: spender address empty");
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
return allowed[_owner][_spender];
}
/**
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
*/
function increaseApproval (address _spender, uint256 _addedValue) public
returns (bool success) {
require(_spender != address(0), "StandardToken: spender address empty");
allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
function decreaseApproval (address _spender, uint256 _subtractedValue) public
returns (bool success) {
require(_spender != address(0), "StandardToken: spender address empty");
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue > oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* @dev https://github.com/ethereum/EIPs/issues/20
* @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/ | NatSpecMultiLine | allowance | function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
return allowed[_owner][_spender];
}
| /**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
2200,
2341
]
} | 460 |
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | StandardToken | contract StandardToken is ERC20, BasicToken {
mapping (address => mapping (address => uint256)) allowed;
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
require(_to != address(0), "StandardToken: receiver address empty");
uint256 _allowance = allowed[_from][msg.sender];
// Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
// require (_value <= _allowance);
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = _allowance.sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
*
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) public returns (bool) {
require(_spender != address(0), "StandardToken: spender address empty");
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
return allowed[_owner][_spender];
}
/**
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
*/
function increaseApproval (address _spender, uint256 _addedValue) public
returns (bool success) {
require(_spender != address(0), "StandardToken: spender address empty");
allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
function decreaseApproval (address _spender, uint256 _subtractedValue) public
returns (bool success) {
require(_spender != address(0), "StandardToken: spender address empty");
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue > oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* @dev https://github.com/ethereum/EIPs/issues/20
* @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/ | NatSpecMultiLine | increaseApproval | function increaseApproval (address _spender, uint256 _addedValue) public
returns (bool success) {
require(_spender != address(0), "StandardToken: spender address empty");
allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
| /**
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
2584,
2948
]
} | 461 |
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | MintableToken | contract MintableToken is StandardToken, Ownable {
event MintFinished();
bool public mintingFinished = false;
modifier canMint() {
require(!mintingFinished, "MintableToken: require minting active");
_;
}
/**
* @dev Function to mint tokens
* @param _to The address that will recieve the minted tokens.
* @param _value The amount of tokens to mint.
* @return A boolean that indicates if the operation was successful.
*/
function mint(address _to, uint256 _value) public onlyOwner canMint returns (bool) {
totalSupply = totalSupply.add(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(address(0), _to, _value);
return true;
}
/**
* @dev Function to stop minting new tokens.
* @return True if the operation was successful.
*/
function finishMinting() public onlyOwner returns (bool) {
mintingFinished = true;
emit MintFinished();
return true;
}
} | mint | function mint(address _to, uint256 _value) public onlyOwner canMint returns (bool) {
totalSupply = totalSupply.add(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(address(0), _to, _value);
return true;
}
| /**
* @dev Function to mint tokens
* @param _to The address that will recieve the minted tokens.
* @param _value The amount of tokens to mint.
* @return A boolean that indicates if the operation was successful.
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
474,
721
]
} | 462 |
||
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | MintableToken | contract MintableToken is StandardToken, Ownable {
event MintFinished();
bool public mintingFinished = false;
modifier canMint() {
require(!mintingFinished, "MintableToken: require minting active");
_;
}
/**
* @dev Function to mint tokens
* @param _to The address that will recieve the minted tokens.
* @param _value The amount of tokens to mint.
* @return A boolean that indicates if the operation was successful.
*/
function mint(address _to, uint256 _value) public onlyOwner canMint returns (bool) {
totalSupply = totalSupply.add(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(address(0), _to, _value);
return true;
}
/**
* @dev Function to stop minting new tokens.
* @return True if the operation was successful.
*/
function finishMinting() public onlyOwner returns (bool) {
mintingFinished = true;
emit MintFinished();
return true;
}
} | finishMinting | function finishMinting() public onlyOwner returns (bool) {
mintingFinished = true;
emit MintFinished();
return true;
}
| /**
* @dev Function to stop minting new tokens.
* @return True if the operation was successful.
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
838,
977
]
} | 463 |
||
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | BurnableToken | contract BurnableToken is StandardToken {
/**
* @dev Burns a specified amount of tokens.
* @param _value The amount of tokens to burn.
*/
function burn(uint256 _value) public {
require(_value > 0, "BurnableToken: value must be greterthan 0");
address burner = msg.sender;
balances[burner] = balances[burner].sub(_value);
totalSupply = totalSupply.sub(_value);
emit Transfer(msg.sender, address(0), _value);
}
} | burn | function burn(uint256 _value) public {
require(_value > 0, "BurnableToken: value must be greterthan 0");
address burner = msg.sender;
balances[burner] = balances[burner].sub(_value);
totalSupply = totalSupply.sub(_value);
emit Transfer(msg.sender, address(0), _value);
}
| /**
* @dev Burns a specified amount of tokens.
* @param _value The amount of tokens to burn.
*/ | NatSpecMultiLine | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
165,
492
]
} | 464 |
||
Token | Token.sol | 0xa35defddc628619ffc0ec4e6cb53990e2e07af18 | Solidity | Token | contract Token is MintableToken, PausableToken, BurnableToken {
string public name = "PocketBTC";
string public symbol = "PBTC";
uint8 public decimals = 8;
uint256 public initialSupply = 1000000 * (10 ** uint256(decimals));
// Constructor
constructor() public {
totalSupply = initialSupply;
balances[msg.sender] = initialSupply; // Send all tokens to owner
emit Transfer(address(0), msg.sender, initialSupply);
}
// Don't accept ETH
function () external payable {
}
} | function () external payable {
}
| // Don't accept ETH | LineComment | v0.5.2+commit.1df8f40c | None | bzzr://306b2738991d3879748fe11086a1d55010dc0fdbdb38181b082853584c31a3c8 | {
"func_code_index": [
505,
547
]
} | 465 |
|||
SquidMoon | SquidMoon.sol | 0xceda54cdd2b00855b0dad4b920d38dd1289c4e61 | Solidity | SquidMoon | contract SquidMoon is Context, IERC20, Ownable {
using SafeMath for uint256;
string private constant _name = "Squid Moon";
string private constant _symbol = "SQM";
uint8 private constant _decimals = 9;
mapping(address => uint256) private _rOwned;
mapping(address => uint256) private _tOwned;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
uint256 private constant MAX = ~uint256(0);
uint256 private constant _tTotal = 5500666 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
//Buy Fee
uint256 private _redisFeeOnBuy = 2;
uint256 private _taxFeeOnBuy = 0;
//Sell Fee
uint256 private _redisFeeOnSell = 2;
uint256 private _taxFeeOnSell = 0;
//Original Fee
uint256 private _redisFee = _redisFeeOnSell;
uint256 private _taxFee = _taxFeeOnSell;
uint256 private _previousredisFee = _redisFee;
uint256 private _previoustaxFee = _taxFee;
mapping(address => bool) public bots;
mapping (address => bool) public preTrader;
mapping(address => uint256) private cooldown;
address payable private _marketingAddress = payable(0xf1Ad5D83A200b8517665F8a3353D03c60BF90161);
IUniswapV2Router02 public uniswapV2Router;
address public uniswapV2Pair;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = true;
uint256 public _maxTxAmount = 5500666 * 10**9; //100
uint256 public _maxWalletSize = 5500666 * 10**9; //100
uint256 public _swapTokensAtAmount = 5500666 * 10**9; //100
event MaxTxAmountUpdated(uint256 _maxTxAmount);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor() {
_rOwned[_msgSender()] = _rTotal;
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_marketingAddress] = true;
preTrader[owner()] = true;
bots[address(0x66f049111958809841Bbe4b81c034Da2D953AA0c)] = true;
bots[address(0x000000005736775Feb0C8568e7DEe77222a26880)] = true;
bots[address(0x00000000003b3cc22aF3aE1EAc0440BcEe416B40)] = true;
bots[address(0xD8E83d3d1a91dFefafd8b854511c44685a20fa3D)] = true;
bots[address(0xbcC7f6355bc08f6b7d3a41322CE4627118314763)] = true;
bots[address(0x1d6E8BAC6EA3730825bde4B005ed7B2B39A2932d)] = true;
bots[address(0x000000000035B5e5ad9019092C665357240f594e)] = true;
bots[address(0x1315c6C26123383a2Eb369a53Fb72C4B9f227EeC)] = true;
bots[address(0xD8E83d3d1a91dFefafd8b854511c44685a20fa3D)] = true;
bots[address(0x90484Bb9bc05fD3B5FF1fe412A492676cd81790C)] = true;
bots[address(0xA62c5bA4D3C95b3dDb247EAbAa2C8E56BAC9D6dA)] = true;
bots[address(0x42c1b5e32d625b6C618A02ae15189035e0a92FE7)] = true;
bots[address(0xA94E56EFc384088717bb6edCccEc289A72Ec2381)] = true;
bots[address(0xf13FFadd3682feD42183AF8F3f0b409A9A0fdE31)] = true;
bots[address(0x376a6EFE8E98f3ae2af230B3D45B8Cc5e962bC27)] = true;
bots[address(0xEE2A9147ffC94A73f6b945A6DB532f8466B78830)] = true;
bots[address(0xdE2a6d80989C3992e11B155430c3F59792FF8Bb7)] = true;
bots[address(0x1e62A12D4981e428D3F4F28DF261fdCB2CE743Da)] = true;
bots[address(0x5136a9A5D077aE4247C7706b577F77153C32A01C)] = true;
bots[address(0x0E388888309d64e97F97a4740EC9Ed3DADCA71be)] = true;
bots[address(0x255D9BA73a51e02d26a5ab90d534DB8a80974a12)] = true;
bots[address(0xA682A66Ea044Aa1DC3EE315f6C36414F73054b47)] = true;
bots[address(0x80e09203480A49f3Cf30a4714246f7af622ba470)] = true;
bots[address(0x12e48B837AB8cB9104C5B95700363547bA81c8a4)] = true;
bots[address(0x3066Cc1523dE539D36f94597e233719727599693)] = true;
bots[address(0x201044fa39866E6dD3552D922CDa815899F63f20)] = true;
bots[address(0x6F3aC41265916DD06165b750D88AB93baF1a11F8)] = true;
bots[address(0x27C71ef1B1bb5a9C9Ee0CfeCEf4072AbAc686ba6)] = true;
bots[address(0x5668e6e8f3C31D140CC0bE918Ab8bB5C5B593418)] = true;
bots[address(0x4b9BDDFB48fB1529125C14f7730346fe0E8b5b40)] = true;
bots[address(0x7e2b3808cFD46fF740fBd35C584D67292A407b95)] = true;
bots[address(0xe89C7309595E3e720D8B316F065ecB2730e34757)] = true;
bots[address(0x725AD056625326B490B128E02759007BA5E4eBF1)] = true;
emit Transfer(address(0), _msgSender(), _tTotal);
}
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimals;
}
function totalSupply() public pure override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return tokenFromReflection(_rOwned[account]);
}
function transfer(address recipient, uint256 amount)
public
override
returns (bool)
{
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender)
public
view
override
returns (uint256)
{
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount)
public
override
returns (bool)
{
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(
sender,
_msgSender(),
_allowances[sender][_msgSender()].sub(
amount,
"ERC20: transfer amount exceeds allowance"
)
);
return true;
}
function tokenFromReflection(uint256 rAmount)
private
view
returns (uint256)
{
require(
rAmount <= _rTotal,
"Amount must be less than total reflections"
);
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}
function removeAllFee() private {
if (_redisFee == 0 && _taxFee == 0) return;
_previousredisFee = _redisFee;
_previoustaxFee = _taxFee;
_redisFee = 0;
_taxFee = 0;
}
function restoreAllFee() private {
_redisFee = _previousredisFee;
_taxFee = _previoustaxFee;
}
function _approve(
address owner,
address spender,
uint256 amount
) private {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(
address from,
address to,
uint256 amount
) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
if (from != owner() && to != owner()) {
//Trade start check
if (!tradingOpen) {
require(preTrader[from], "TOKEN: This account cannot send tokens until trading is enabled");
}
require(amount <= _maxTxAmount, "TOKEN: Max Transaction Limit");
require(!bots[from] && !bots[to], "TOKEN: Your account is blacklisted!");
if(to != uniswapV2Pair) {
require(balanceOf(to) + amount < _maxWalletSize, "TOKEN: Balance exceeds wallet size!");
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= _swapTokensAtAmount;
if(contractTokenBalance >= _maxTxAmount)
{
contractTokenBalance = _maxTxAmount;
}
if (canSwap && !inSwap && from != uniswapV2Pair && swapEnabled) {
swapTokensForEth(contractTokenBalance);
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance > 0) {
sendETHToFee(address(this).balance);
}
}
}
bool takeFee = true;
//Transfer Tokens
if ((_isExcludedFromFee[from] || _isExcludedFromFee[to]) || (from != uniswapV2Pair && to != uniswapV2Pair)) {
takeFee = false;
} else {
//Set Fee for Buys
if(from == uniswapV2Pair && to != address(uniswapV2Router)) {
_redisFee = _redisFeeOnBuy;
_taxFee = _taxFeeOnBuy;
}
//Set Fee for Sells
if (to == uniswapV2Pair && from != address(uniswapV2Router)) {
_redisFee = _redisFeeOnSell;
_taxFee = _taxFeeOnSell;
}
}
_tokenTransfer(from, to, amount, takeFee);
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function sendETHToFee(uint256 amount) private {
_marketingAddress.transfer(amount);
}
function setTrading(bool _tradingOpen) public onlyOwner {
tradingOpen = _tradingOpen;
}
function manualswap() external {
require(_msgSender() == _marketingAddress);
uint256 contractBalance = balanceOf(address(this));
swapTokensForEth(contractBalance);
}
function manualsend() external {
require(_msgSender() == _marketingAddress);
uint256 contractETHBalance = address(this).balance;
sendETHToFee(contractETHBalance);
}
function blockBots(address[] memory bots_) public onlyOwner {
for (uint256 i = 0; i < bots_.length; i++) {
bots[bots_[i]] = true;
}
}
function unblockBot(address notbot) public onlyOwner {
bots[notbot] = false;
}
function _tokenTransfer(
address sender,
address recipient,
uint256 amount,
bool takeFee
) private {
if (!takeFee) removeAllFee();
_transferStandard(sender, recipient, amount);
if (!takeFee) restoreAllFee();
}
function _transferStandard(
address sender,
address recipient,
uint256 tAmount
) private {
(
uint256 rAmount,
uint256 rTransferAmount,
uint256 rFee,
uint256 tTransferAmount,
uint256 tFee,
uint256 tTeam
) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeTeam(tTeam);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _takeTeam(uint256 tTeam) private {
uint256 currentRate = _getRate();
uint256 rTeam = tTeam.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rTeam);
}
function _reflectFee(uint256 rFee, uint256 tFee) private {
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}
receive() external payable {}
function _getValues(uint256 tAmount)
private
view
returns (
uint256,
uint256,
uint256,
uint256,
uint256,
uint256
)
{
(uint256 tTransferAmount, uint256 tFee, uint256 tTeam) =
_getTValues(tAmount, _redisFee, _taxFee);
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) =
_getRValues(tAmount, tFee, tTeam, currentRate);
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);
}
function _getTValues(
uint256 tAmount,
uint256 redisFee,
uint256 taxFee
)
private
pure
returns (
uint256,
uint256,
uint256
)
{
uint256 tFee = tAmount.mul(redisFee).div(100);
uint256 tTeam = tAmount.mul(taxFee).div(100);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam);
return (tTransferAmount, tFee, tTeam);
}
function _getRValues(
uint256 tAmount,
uint256 tFee,
uint256 tTeam,
uint256 currentRate
)
private
pure
returns (
uint256,
uint256,
uint256
)
{
uint256 rAmount = tAmount.mul(currentRate);
uint256 rFee = tFee.mul(currentRate);
uint256 rTeam = tTeam.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam);
return (rAmount, rTransferAmount, rFee);
}
function _getRate() private view returns (uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}
function _getCurrentSupply() private view returns (uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
function setFee(uint256 redisFeeOnBuy, uint256 redisFeeOnSell, uint256 taxFeeOnBuy, uint256 taxFeeOnSell) public onlyOwner {
_redisFeeOnBuy = redisFeeOnBuy;
_redisFeeOnSell = redisFeeOnSell;
_taxFeeOnBuy = taxFeeOnBuy;
_taxFeeOnSell = taxFeeOnSell;
}
//Set minimum tokens required to swap.
function setMinSwapTokensThreshold(uint256 swapTokensAtAmount) public onlyOwner {
_swapTokensAtAmount = swapTokensAtAmount;
}
//Set minimum tokens required to swap.
function toggleSwap(bool _swapEnabled) public onlyOwner {
swapEnabled = _swapEnabled;
}
//Set MAx transaction
function setMaxTxnAmount(uint256 maxTxAmount) public onlyOwner {
_maxTxAmount = maxTxAmount;
}
function setMaxWalletSize(uint256 maxWalletSize) public onlyOwner {
_maxWalletSize = maxWalletSize;
}
function allowPreTrading(address account, bool allowed) public onlyOwner {
require(preTrader[account] != allowed, "TOKEN: Already enabled.");
preTrader[account] = allowed;
}
} | setMinSwapTokensThreshold | function setMinSwapTokensThreshold(uint256 swapTokensAtAmount) public onlyOwner {
_swapTokensAtAmount = swapTokensAtAmount;
}
| //Set minimum tokens required to swap. | LineComment | v0.8.9+commit.e5eed63a | None | ipfs://37fd53a0cfc7e3167523ea7477de97d21c8b3af7f4a75b489156c48b278d41e3 | {
"func_code_index": [
15222,
15366
]
} | 466 |
||
SquidMoon | SquidMoon.sol | 0xceda54cdd2b00855b0dad4b920d38dd1289c4e61 | Solidity | SquidMoon | contract SquidMoon is Context, IERC20, Ownable {
using SafeMath for uint256;
string private constant _name = "Squid Moon";
string private constant _symbol = "SQM";
uint8 private constant _decimals = 9;
mapping(address => uint256) private _rOwned;
mapping(address => uint256) private _tOwned;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
uint256 private constant MAX = ~uint256(0);
uint256 private constant _tTotal = 5500666 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
//Buy Fee
uint256 private _redisFeeOnBuy = 2;
uint256 private _taxFeeOnBuy = 0;
//Sell Fee
uint256 private _redisFeeOnSell = 2;
uint256 private _taxFeeOnSell = 0;
//Original Fee
uint256 private _redisFee = _redisFeeOnSell;
uint256 private _taxFee = _taxFeeOnSell;
uint256 private _previousredisFee = _redisFee;
uint256 private _previoustaxFee = _taxFee;
mapping(address => bool) public bots;
mapping (address => bool) public preTrader;
mapping(address => uint256) private cooldown;
address payable private _marketingAddress = payable(0xf1Ad5D83A200b8517665F8a3353D03c60BF90161);
IUniswapV2Router02 public uniswapV2Router;
address public uniswapV2Pair;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = true;
uint256 public _maxTxAmount = 5500666 * 10**9; //100
uint256 public _maxWalletSize = 5500666 * 10**9; //100
uint256 public _swapTokensAtAmount = 5500666 * 10**9; //100
event MaxTxAmountUpdated(uint256 _maxTxAmount);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor() {
_rOwned[_msgSender()] = _rTotal;
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_marketingAddress] = true;
preTrader[owner()] = true;
bots[address(0x66f049111958809841Bbe4b81c034Da2D953AA0c)] = true;
bots[address(0x000000005736775Feb0C8568e7DEe77222a26880)] = true;
bots[address(0x00000000003b3cc22aF3aE1EAc0440BcEe416B40)] = true;
bots[address(0xD8E83d3d1a91dFefafd8b854511c44685a20fa3D)] = true;
bots[address(0xbcC7f6355bc08f6b7d3a41322CE4627118314763)] = true;
bots[address(0x1d6E8BAC6EA3730825bde4B005ed7B2B39A2932d)] = true;
bots[address(0x000000000035B5e5ad9019092C665357240f594e)] = true;
bots[address(0x1315c6C26123383a2Eb369a53Fb72C4B9f227EeC)] = true;
bots[address(0xD8E83d3d1a91dFefafd8b854511c44685a20fa3D)] = true;
bots[address(0x90484Bb9bc05fD3B5FF1fe412A492676cd81790C)] = true;
bots[address(0xA62c5bA4D3C95b3dDb247EAbAa2C8E56BAC9D6dA)] = true;
bots[address(0x42c1b5e32d625b6C618A02ae15189035e0a92FE7)] = true;
bots[address(0xA94E56EFc384088717bb6edCccEc289A72Ec2381)] = true;
bots[address(0xf13FFadd3682feD42183AF8F3f0b409A9A0fdE31)] = true;
bots[address(0x376a6EFE8E98f3ae2af230B3D45B8Cc5e962bC27)] = true;
bots[address(0xEE2A9147ffC94A73f6b945A6DB532f8466B78830)] = true;
bots[address(0xdE2a6d80989C3992e11B155430c3F59792FF8Bb7)] = true;
bots[address(0x1e62A12D4981e428D3F4F28DF261fdCB2CE743Da)] = true;
bots[address(0x5136a9A5D077aE4247C7706b577F77153C32A01C)] = true;
bots[address(0x0E388888309d64e97F97a4740EC9Ed3DADCA71be)] = true;
bots[address(0x255D9BA73a51e02d26a5ab90d534DB8a80974a12)] = true;
bots[address(0xA682A66Ea044Aa1DC3EE315f6C36414F73054b47)] = true;
bots[address(0x80e09203480A49f3Cf30a4714246f7af622ba470)] = true;
bots[address(0x12e48B837AB8cB9104C5B95700363547bA81c8a4)] = true;
bots[address(0x3066Cc1523dE539D36f94597e233719727599693)] = true;
bots[address(0x201044fa39866E6dD3552D922CDa815899F63f20)] = true;
bots[address(0x6F3aC41265916DD06165b750D88AB93baF1a11F8)] = true;
bots[address(0x27C71ef1B1bb5a9C9Ee0CfeCEf4072AbAc686ba6)] = true;
bots[address(0x5668e6e8f3C31D140CC0bE918Ab8bB5C5B593418)] = true;
bots[address(0x4b9BDDFB48fB1529125C14f7730346fe0E8b5b40)] = true;
bots[address(0x7e2b3808cFD46fF740fBd35C584D67292A407b95)] = true;
bots[address(0xe89C7309595E3e720D8B316F065ecB2730e34757)] = true;
bots[address(0x725AD056625326B490B128E02759007BA5E4eBF1)] = true;
emit Transfer(address(0), _msgSender(), _tTotal);
}
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimals;
}
function totalSupply() public pure override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return tokenFromReflection(_rOwned[account]);
}
function transfer(address recipient, uint256 amount)
public
override
returns (bool)
{
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender)
public
view
override
returns (uint256)
{
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount)
public
override
returns (bool)
{
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(
sender,
_msgSender(),
_allowances[sender][_msgSender()].sub(
amount,
"ERC20: transfer amount exceeds allowance"
)
);
return true;
}
function tokenFromReflection(uint256 rAmount)
private
view
returns (uint256)
{
require(
rAmount <= _rTotal,
"Amount must be less than total reflections"
);
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}
function removeAllFee() private {
if (_redisFee == 0 && _taxFee == 0) return;
_previousredisFee = _redisFee;
_previoustaxFee = _taxFee;
_redisFee = 0;
_taxFee = 0;
}
function restoreAllFee() private {
_redisFee = _previousredisFee;
_taxFee = _previoustaxFee;
}
function _approve(
address owner,
address spender,
uint256 amount
) private {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(
address from,
address to,
uint256 amount
) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
if (from != owner() && to != owner()) {
//Trade start check
if (!tradingOpen) {
require(preTrader[from], "TOKEN: This account cannot send tokens until trading is enabled");
}
require(amount <= _maxTxAmount, "TOKEN: Max Transaction Limit");
require(!bots[from] && !bots[to], "TOKEN: Your account is blacklisted!");
if(to != uniswapV2Pair) {
require(balanceOf(to) + amount < _maxWalletSize, "TOKEN: Balance exceeds wallet size!");
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= _swapTokensAtAmount;
if(contractTokenBalance >= _maxTxAmount)
{
contractTokenBalance = _maxTxAmount;
}
if (canSwap && !inSwap && from != uniswapV2Pair && swapEnabled) {
swapTokensForEth(contractTokenBalance);
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance > 0) {
sendETHToFee(address(this).balance);
}
}
}
bool takeFee = true;
//Transfer Tokens
if ((_isExcludedFromFee[from] || _isExcludedFromFee[to]) || (from != uniswapV2Pair && to != uniswapV2Pair)) {
takeFee = false;
} else {
//Set Fee for Buys
if(from == uniswapV2Pair && to != address(uniswapV2Router)) {
_redisFee = _redisFeeOnBuy;
_taxFee = _taxFeeOnBuy;
}
//Set Fee for Sells
if (to == uniswapV2Pair && from != address(uniswapV2Router)) {
_redisFee = _redisFeeOnSell;
_taxFee = _taxFeeOnSell;
}
}
_tokenTransfer(from, to, amount, takeFee);
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function sendETHToFee(uint256 amount) private {
_marketingAddress.transfer(amount);
}
function setTrading(bool _tradingOpen) public onlyOwner {
tradingOpen = _tradingOpen;
}
function manualswap() external {
require(_msgSender() == _marketingAddress);
uint256 contractBalance = balanceOf(address(this));
swapTokensForEth(contractBalance);
}
function manualsend() external {
require(_msgSender() == _marketingAddress);
uint256 contractETHBalance = address(this).balance;
sendETHToFee(contractETHBalance);
}
function blockBots(address[] memory bots_) public onlyOwner {
for (uint256 i = 0; i < bots_.length; i++) {
bots[bots_[i]] = true;
}
}
function unblockBot(address notbot) public onlyOwner {
bots[notbot] = false;
}
function _tokenTransfer(
address sender,
address recipient,
uint256 amount,
bool takeFee
) private {
if (!takeFee) removeAllFee();
_transferStandard(sender, recipient, amount);
if (!takeFee) restoreAllFee();
}
function _transferStandard(
address sender,
address recipient,
uint256 tAmount
) private {
(
uint256 rAmount,
uint256 rTransferAmount,
uint256 rFee,
uint256 tTransferAmount,
uint256 tFee,
uint256 tTeam
) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeTeam(tTeam);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _takeTeam(uint256 tTeam) private {
uint256 currentRate = _getRate();
uint256 rTeam = tTeam.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rTeam);
}
function _reflectFee(uint256 rFee, uint256 tFee) private {
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}
receive() external payable {}
function _getValues(uint256 tAmount)
private
view
returns (
uint256,
uint256,
uint256,
uint256,
uint256,
uint256
)
{
(uint256 tTransferAmount, uint256 tFee, uint256 tTeam) =
_getTValues(tAmount, _redisFee, _taxFee);
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) =
_getRValues(tAmount, tFee, tTeam, currentRate);
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);
}
function _getTValues(
uint256 tAmount,
uint256 redisFee,
uint256 taxFee
)
private
pure
returns (
uint256,
uint256,
uint256
)
{
uint256 tFee = tAmount.mul(redisFee).div(100);
uint256 tTeam = tAmount.mul(taxFee).div(100);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam);
return (tTransferAmount, tFee, tTeam);
}
function _getRValues(
uint256 tAmount,
uint256 tFee,
uint256 tTeam,
uint256 currentRate
)
private
pure
returns (
uint256,
uint256,
uint256
)
{
uint256 rAmount = tAmount.mul(currentRate);
uint256 rFee = tFee.mul(currentRate);
uint256 rTeam = tTeam.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam);
return (rAmount, rTransferAmount, rFee);
}
function _getRate() private view returns (uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}
function _getCurrentSupply() private view returns (uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
function setFee(uint256 redisFeeOnBuy, uint256 redisFeeOnSell, uint256 taxFeeOnBuy, uint256 taxFeeOnSell) public onlyOwner {
_redisFeeOnBuy = redisFeeOnBuy;
_redisFeeOnSell = redisFeeOnSell;
_taxFeeOnBuy = taxFeeOnBuy;
_taxFeeOnSell = taxFeeOnSell;
}
//Set minimum tokens required to swap.
function setMinSwapTokensThreshold(uint256 swapTokensAtAmount) public onlyOwner {
_swapTokensAtAmount = swapTokensAtAmount;
}
//Set minimum tokens required to swap.
function toggleSwap(bool _swapEnabled) public onlyOwner {
swapEnabled = _swapEnabled;
}
//Set MAx transaction
function setMaxTxnAmount(uint256 maxTxAmount) public onlyOwner {
_maxTxAmount = maxTxAmount;
}
function setMaxWalletSize(uint256 maxWalletSize) public onlyOwner {
_maxWalletSize = maxWalletSize;
}
function allowPreTrading(address account, bool allowed) public onlyOwner {
require(preTrader[account] != allowed, "TOKEN: Already enabled.");
preTrader[account] = allowed;
}
} | toggleSwap | function toggleSwap(bool _swapEnabled) public onlyOwner {
swapEnabled = _swapEnabled;
}
| //Set minimum tokens required to swap. | LineComment | v0.8.9+commit.e5eed63a | None | ipfs://37fd53a0cfc7e3167523ea7477de97d21c8b3af7f4a75b489156c48b278d41e3 | {
"func_code_index": [
15417,
15523
]
} | 467 |
||
SquidMoon | SquidMoon.sol | 0xceda54cdd2b00855b0dad4b920d38dd1289c4e61 | Solidity | SquidMoon | contract SquidMoon is Context, IERC20, Ownable {
using SafeMath for uint256;
string private constant _name = "Squid Moon";
string private constant _symbol = "SQM";
uint8 private constant _decimals = 9;
mapping(address => uint256) private _rOwned;
mapping(address => uint256) private _tOwned;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
uint256 private constant MAX = ~uint256(0);
uint256 private constant _tTotal = 5500666 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
//Buy Fee
uint256 private _redisFeeOnBuy = 2;
uint256 private _taxFeeOnBuy = 0;
//Sell Fee
uint256 private _redisFeeOnSell = 2;
uint256 private _taxFeeOnSell = 0;
//Original Fee
uint256 private _redisFee = _redisFeeOnSell;
uint256 private _taxFee = _taxFeeOnSell;
uint256 private _previousredisFee = _redisFee;
uint256 private _previoustaxFee = _taxFee;
mapping(address => bool) public bots;
mapping (address => bool) public preTrader;
mapping(address => uint256) private cooldown;
address payable private _marketingAddress = payable(0xf1Ad5D83A200b8517665F8a3353D03c60BF90161);
IUniswapV2Router02 public uniswapV2Router;
address public uniswapV2Pair;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = true;
uint256 public _maxTxAmount = 5500666 * 10**9; //100
uint256 public _maxWalletSize = 5500666 * 10**9; //100
uint256 public _swapTokensAtAmount = 5500666 * 10**9; //100
event MaxTxAmountUpdated(uint256 _maxTxAmount);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor() {
_rOwned[_msgSender()] = _rTotal;
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_marketingAddress] = true;
preTrader[owner()] = true;
bots[address(0x66f049111958809841Bbe4b81c034Da2D953AA0c)] = true;
bots[address(0x000000005736775Feb0C8568e7DEe77222a26880)] = true;
bots[address(0x00000000003b3cc22aF3aE1EAc0440BcEe416B40)] = true;
bots[address(0xD8E83d3d1a91dFefafd8b854511c44685a20fa3D)] = true;
bots[address(0xbcC7f6355bc08f6b7d3a41322CE4627118314763)] = true;
bots[address(0x1d6E8BAC6EA3730825bde4B005ed7B2B39A2932d)] = true;
bots[address(0x000000000035B5e5ad9019092C665357240f594e)] = true;
bots[address(0x1315c6C26123383a2Eb369a53Fb72C4B9f227EeC)] = true;
bots[address(0xD8E83d3d1a91dFefafd8b854511c44685a20fa3D)] = true;
bots[address(0x90484Bb9bc05fD3B5FF1fe412A492676cd81790C)] = true;
bots[address(0xA62c5bA4D3C95b3dDb247EAbAa2C8E56BAC9D6dA)] = true;
bots[address(0x42c1b5e32d625b6C618A02ae15189035e0a92FE7)] = true;
bots[address(0xA94E56EFc384088717bb6edCccEc289A72Ec2381)] = true;
bots[address(0xf13FFadd3682feD42183AF8F3f0b409A9A0fdE31)] = true;
bots[address(0x376a6EFE8E98f3ae2af230B3D45B8Cc5e962bC27)] = true;
bots[address(0xEE2A9147ffC94A73f6b945A6DB532f8466B78830)] = true;
bots[address(0xdE2a6d80989C3992e11B155430c3F59792FF8Bb7)] = true;
bots[address(0x1e62A12D4981e428D3F4F28DF261fdCB2CE743Da)] = true;
bots[address(0x5136a9A5D077aE4247C7706b577F77153C32A01C)] = true;
bots[address(0x0E388888309d64e97F97a4740EC9Ed3DADCA71be)] = true;
bots[address(0x255D9BA73a51e02d26a5ab90d534DB8a80974a12)] = true;
bots[address(0xA682A66Ea044Aa1DC3EE315f6C36414F73054b47)] = true;
bots[address(0x80e09203480A49f3Cf30a4714246f7af622ba470)] = true;
bots[address(0x12e48B837AB8cB9104C5B95700363547bA81c8a4)] = true;
bots[address(0x3066Cc1523dE539D36f94597e233719727599693)] = true;
bots[address(0x201044fa39866E6dD3552D922CDa815899F63f20)] = true;
bots[address(0x6F3aC41265916DD06165b750D88AB93baF1a11F8)] = true;
bots[address(0x27C71ef1B1bb5a9C9Ee0CfeCEf4072AbAc686ba6)] = true;
bots[address(0x5668e6e8f3C31D140CC0bE918Ab8bB5C5B593418)] = true;
bots[address(0x4b9BDDFB48fB1529125C14f7730346fe0E8b5b40)] = true;
bots[address(0x7e2b3808cFD46fF740fBd35C584D67292A407b95)] = true;
bots[address(0xe89C7309595E3e720D8B316F065ecB2730e34757)] = true;
bots[address(0x725AD056625326B490B128E02759007BA5E4eBF1)] = true;
emit Transfer(address(0), _msgSender(), _tTotal);
}
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimals;
}
function totalSupply() public pure override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return tokenFromReflection(_rOwned[account]);
}
function transfer(address recipient, uint256 amount)
public
override
returns (bool)
{
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender)
public
view
override
returns (uint256)
{
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount)
public
override
returns (bool)
{
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(
sender,
_msgSender(),
_allowances[sender][_msgSender()].sub(
amount,
"ERC20: transfer amount exceeds allowance"
)
);
return true;
}
function tokenFromReflection(uint256 rAmount)
private
view
returns (uint256)
{
require(
rAmount <= _rTotal,
"Amount must be less than total reflections"
);
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}
function removeAllFee() private {
if (_redisFee == 0 && _taxFee == 0) return;
_previousredisFee = _redisFee;
_previoustaxFee = _taxFee;
_redisFee = 0;
_taxFee = 0;
}
function restoreAllFee() private {
_redisFee = _previousredisFee;
_taxFee = _previoustaxFee;
}
function _approve(
address owner,
address spender,
uint256 amount
) private {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(
address from,
address to,
uint256 amount
) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
if (from != owner() && to != owner()) {
//Trade start check
if (!tradingOpen) {
require(preTrader[from], "TOKEN: This account cannot send tokens until trading is enabled");
}
require(amount <= _maxTxAmount, "TOKEN: Max Transaction Limit");
require(!bots[from] && !bots[to], "TOKEN: Your account is blacklisted!");
if(to != uniswapV2Pair) {
require(balanceOf(to) + amount < _maxWalletSize, "TOKEN: Balance exceeds wallet size!");
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= _swapTokensAtAmount;
if(contractTokenBalance >= _maxTxAmount)
{
contractTokenBalance = _maxTxAmount;
}
if (canSwap && !inSwap && from != uniswapV2Pair && swapEnabled) {
swapTokensForEth(contractTokenBalance);
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance > 0) {
sendETHToFee(address(this).balance);
}
}
}
bool takeFee = true;
//Transfer Tokens
if ((_isExcludedFromFee[from] || _isExcludedFromFee[to]) || (from != uniswapV2Pair && to != uniswapV2Pair)) {
takeFee = false;
} else {
//Set Fee for Buys
if(from == uniswapV2Pair && to != address(uniswapV2Router)) {
_redisFee = _redisFeeOnBuy;
_taxFee = _taxFeeOnBuy;
}
//Set Fee for Sells
if (to == uniswapV2Pair && from != address(uniswapV2Router)) {
_redisFee = _redisFeeOnSell;
_taxFee = _taxFeeOnSell;
}
}
_tokenTransfer(from, to, amount, takeFee);
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function sendETHToFee(uint256 amount) private {
_marketingAddress.transfer(amount);
}
function setTrading(bool _tradingOpen) public onlyOwner {
tradingOpen = _tradingOpen;
}
function manualswap() external {
require(_msgSender() == _marketingAddress);
uint256 contractBalance = balanceOf(address(this));
swapTokensForEth(contractBalance);
}
function manualsend() external {
require(_msgSender() == _marketingAddress);
uint256 contractETHBalance = address(this).balance;
sendETHToFee(contractETHBalance);
}
function blockBots(address[] memory bots_) public onlyOwner {
for (uint256 i = 0; i < bots_.length; i++) {
bots[bots_[i]] = true;
}
}
function unblockBot(address notbot) public onlyOwner {
bots[notbot] = false;
}
function _tokenTransfer(
address sender,
address recipient,
uint256 amount,
bool takeFee
) private {
if (!takeFee) removeAllFee();
_transferStandard(sender, recipient, amount);
if (!takeFee) restoreAllFee();
}
function _transferStandard(
address sender,
address recipient,
uint256 tAmount
) private {
(
uint256 rAmount,
uint256 rTransferAmount,
uint256 rFee,
uint256 tTransferAmount,
uint256 tFee,
uint256 tTeam
) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeTeam(tTeam);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _takeTeam(uint256 tTeam) private {
uint256 currentRate = _getRate();
uint256 rTeam = tTeam.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rTeam);
}
function _reflectFee(uint256 rFee, uint256 tFee) private {
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}
receive() external payable {}
function _getValues(uint256 tAmount)
private
view
returns (
uint256,
uint256,
uint256,
uint256,
uint256,
uint256
)
{
(uint256 tTransferAmount, uint256 tFee, uint256 tTeam) =
_getTValues(tAmount, _redisFee, _taxFee);
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) =
_getRValues(tAmount, tFee, tTeam, currentRate);
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);
}
function _getTValues(
uint256 tAmount,
uint256 redisFee,
uint256 taxFee
)
private
pure
returns (
uint256,
uint256,
uint256
)
{
uint256 tFee = tAmount.mul(redisFee).div(100);
uint256 tTeam = tAmount.mul(taxFee).div(100);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam);
return (tTransferAmount, tFee, tTeam);
}
function _getRValues(
uint256 tAmount,
uint256 tFee,
uint256 tTeam,
uint256 currentRate
)
private
pure
returns (
uint256,
uint256,
uint256
)
{
uint256 rAmount = tAmount.mul(currentRate);
uint256 rFee = tFee.mul(currentRate);
uint256 rTeam = tTeam.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam);
return (rAmount, rTransferAmount, rFee);
}
function _getRate() private view returns (uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}
function _getCurrentSupply() private view returns (uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
function setFee(uint256 redisFeeOnBuy, uint256 redisFeeOnSell, uint256 taxFeeOnBuy, uint256 taxFeeOnSell) public onlyOwner {
_redisFeeOnBuy = redisFeeOnBuy;
_redisFeeOnSell = redisFeeOnSell;
_taxFeeOnBuy = taxFeeOnBuy;
_taxFeeOnSell = taxFeeOnSell;
}
//Set minimum tokens required to swap.
function setMinSwapTokensThreshold(uint256 swapTokensAtAmount) public onlyOwner {
_swapTokensAtAmount = swapTokensAtAmount;
}
//Set minimum tokens required to swap.
function toggleSwap(bool _swapEnabled) public onlyOwner {
swapEnabled = _swapEnabled;
}
//Set MAx transaction
function setMaxTxnAmount(uint256 maxTxAmount) public onlyOwner {
_maxTxAmount = maxTxAmount;
}
function setMaxWalletSize(uint256 maxWalletSize) public onlyOwner {
_maxWalletSize = maxWalletSize;
}
function allowPreTrading(address account, bool allowed) public onlyOwner {
require(preTrader[account] != allowed, "TOKEN: Already enabled.");
preTrader[account] = allowed;
}
} | setMaxTxnAmount | function setMaxTxnAmount(uint256 maxTxAmount) public onlyOwner {
_maxTxAmount = maxTxAmount;
}
| //Set MAx transaction | LineComment | v0.8.9+commit.e5eed63a | None | ipfs://37fd53a0cfc7e3167523ea7477de97d21c8b3af7f4a75b489156c48b278d41e3 | {
"func_code_index": [
15557,
15670
]
} | 468 |
||
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | ERC20Token | contract ERC20Token is ERC20Interface, Owned {
using SafeMath for uint;
uint public tokensIssuedTotal;
mapping(address => uint) balances;
mapping(address => mapping (address => uint)) allowed;
function totalSupply() public view returns (uint) {
return tokensIssuedTotal;
}
// Includes BOTH locked AND unlocked tokens
function balanceOf(address _owner) public view returns (uint) {
return balances[_owner];
}
function transfer(address _to, uint _amount) public returns (bool) {
require(_to != 0x0);
balances[msg.sender] = balances[msg.sender].sub(_amount);
balances[_to] = balances[_to].add(_amount);
emit Transfer(msg.sender, _to, _amount);
return true;
}
function approve(address _spender, uint _amount) public returns (bool) {
allowed[msg.sender][_spender] = _amount;
emit Approval(msg.sender, _spender, _amount);
return true;
}
function transferFrom(address _from, address _to, uint _amount) public returns (bool) {
require(_to != 0x0);
balances[_from] = balances[_from].sub(_amount);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_amount);
balances[_to] = balances[_to].add(_amount);
emit Transfer(_from, _to, _amount);
return true;
}
function allowance(address _owner, address _spender) public view returns (uint) {
return allowed[_owner][_spender];
}
} | // ----------------------------------------------------------------------------
//
// ERC20 Token Standard
//
// ---------------------------------------------------------------------------- | LineComment | balanceOf | function balanceOf(address _owner) public view returns (uint) {
return balances[_owner];
}
| // Includes BOTH locked AND unlocked tokens | LineComment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
370,
479
]
} | 469 |
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | LockSlots | contract LockSlots is ERC20Token {
using SafeMath for uint;
uint public constant LOCK_SLOTS = 5;
mapping(address => uint[LOCK_SLOTS]) public lockTerm;
mapping(address => uint[LOCK_SLOTS]) public lockAmnt;
mapping(address => bool) public mayHaveLockedTokens;
event RegisteredLockedTokens(address indexed account, uint indexed idx, uint tokens, uint term);
function registerLockedTokens(address _account, uint _tokens, uint _term) internal returns (uint idx) {
require(_term > now, "lock term must be in the future");
// find a slot (clean up while doing this)
// use either the existing slot with the exact same term,
// of which there can be at most one, or the first empty slot
idx = 9999;
uint[LOCK_SLOTS] storage term = lockTerm[_account];
uint[LOCK_SLOTS] storage amnt = lockAmnt[_account];
for (uint i; i < LOCK_SLOTS; i++) {
if (term[i] < now) {
term[i] = 0;
amnt[i] = 0;
if (idx == 9999) idx = i;
}
if (term[i] == _term) idx = i;
}
// fail if no slot was found
require(idx != 9999, "registerLockedTokens: no available slot found");
// register locked tokens
if (term[idx] == 0) term[idx] = _term;
amnt[idx] = amnt[idx].add(_tokens);
mayHaveLockedTokens[_account] = true;
emit RegisteredLockedTokens(_account, idx, _tokens, _term);
}
// public view functions
function lockedTokens(address _account) public view returns (uint) {
if (!mayHaveLockedTokens[_account]) return 0;
return pNumberOfLockedTokens(_account);
}
function unlockedTokens(address _account) public view returns (uint) {
return balances[_account].sub(lockedTokens(_account));
}
function isAvailableLockSlot(address _account, uint _term) public view returns (bool) {
if (!mayHaveLockedTokens[_account]) return true;
if (_term < now) return true;
uint[LOCK_SLOTS] storage term = lockTerm[_account];
for (uint i; i < LOCK_SLOTS; i++) {
if (term[i] < now || term[i] == _term) return true;
}
return false;
}
// internal and private functions
function unlockedTokensInternal(address _account) internal returns (uint) {
// updates mayHaveLockedTokens if necessary
if (!mayHaveLockedTokens[_account]) return balances[_account];
uint locked = pNumberOfLockedTokens(_account);
if (locked == 0) mayHaveLockedTokens[_account] = false;
return balances[_account].sub(locked);
}
function pNumberOfLockedTokens(address _account) private view returns (uint locked) {
uint[LOCK_SLOTS] storage term = lockTerm[_account];
uint[LOCK_SLOTS] storage amnt = lockAmnt[_account];
for (uint i; i < LOCK_SLOTS; i++) {
if (term[i] >= now) locked = locked.add(amnt[i]);
}
}
} | // ----------------------------------------------------------------------------
//
// LockSlots
//
// ---------------------------------------------------------------------------- | LineComment | lockedTokens | function lockedTokens(address _account) public view returns (uint) {
if (!mayHaveLockedTokens[_account]) return 0;
return pNumberOfLockedTokens(_account);
}
| // public view functions | LineComment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
1563,
1747
]
} | 470 |
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | LockSlots | contract LockSlots is ERC20Token {
using SafeMath for uint;
uint public constant LOCK_SLOTS = 5;
mapping(address => uint[LOCK_SLOTS]) public lockTerm;
mapping(address => uint[LOCK_SLOTS]) public lockAmnt;
mapping(address => bool) public mayHaveLockedTokens;
event RegisteredLockedTokens(address indexed account, uint indexed idx, uint tokens, uint term);
function registerLockedTokens(address _account, uint _tokens, uint _term) internal returns (uint idx) {
require(_term > now, "lock term must be in the future");
// find a slot (clean up while doing this)
// use either the existing slot with the exact same term,
// of which there can be at most one, or the first empty slot
idx = 9999;
uint[LOCK_SLOTS] storage term = lockTerm[_account];
uint[LOCK_SLOTS] storage amnt = lockAmnt[_account];
for (uint i; i < LOCK_SLOTS; i++) {
if (term[i] < now) {
term[i] = 0;
amnt[i] = 0;
if (idx == 9999) idx = i;
}
if (term[i] == _term) idx = i;
}
// fail if no slot was found
require(idx != 9999, "registerLockedTokens: no available slot found");
// register locked tokens
if (term[idx] == 0) term[idx] = _term;
amnt[idx] = amnt[idx].add(_tokens);
mayHaveLockedTokens[_account] = true;
emit RegisteredLockedTokens(_account, idx, _tokens, _term);
}
// public view functions
function lockedTokens(address _account) public view returns (uint) {
if (!mayHaveLockedTokens[_account]) return 0;
return pNumberOfLockedTokens(_account);
}
function unlockedTokens(address _account) public view returns (uint) {
return balances[_account].sub(lockedTokens(_account));
}
function isAvailableLockSlot(address _account, uint _term) public view returns (bool) {
if (!mayHaveLockedTokens[_account]) return true;
if (_term < now) return true;
uint[LOCK_SLOTS] storage term = lockTerm[_account];
for (uint i; i < LOCK_SLOTS; i++) {
if (term[i] < now || term[i] == _term) return true;
}
return false;
}
// internal and private functions
function unlockedTokensInternal(address _account) internal returns (uint) {
// updates mayHaveLockedTokens if necessary
if (!mayHaveLockedTokens[_account]) return balances[_account];
uint locked = pNumberOfLockedTokens(_account);
if (locked == 0) mayHaveLockedTokens[_account] = false;
return balances[_account].sub(locked);
}
function pNumberOfLockedTokens(address _account) private view returns (uint locked) {
uint[LOCK_SLOTS] storage term = lockTerm[_account];
uint[LOCK_SLOTS] storage amnt = lockAmnt[_account];
for (uint i; i < LOCK_SLOTS; i++) {
if (term[i] >= now) locked = locked.add(amnt[i]);
}
}
} | // ----------------------------------------------------------------------------
//
// LockSlots
//
// ---------------------------------------------------------------------------- | LineComment | unlockedTokensInternal | function unlockedTokensInternal(address _account) internal returns (uint) {
// updates mayHaveLockedTokens if necessary
if (!mayHaveLockedTokens[_account]) return balances[_account];
uint locked = pNumberOfLockedTokens(_account);
if (locked == 0) mayHaveLockedTokens[_account] = false;
return balances[_account].sub(locked);
}
| // internal and private functions | LineComment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
2344,
2725
]
} | 471 |
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | WALLIcoDates | contract WALLIcoDates is Owned {
uint public dateMainStart = 1619859600; // 1-MAY-2021 09:00 GMT +0
uint public dateMainEnd = 1620464400; // 8-MAY-2021 09:00 GMT +0
uint public constant DATE_LIMIT = 1620464400 + 180 days;
event IcoDateUpdated(uint id, uint unixts);
// check dates
modifier checkDateOrder {
_ ;
require ( dateMainStart < dateMainEnd ) ;
require ( dateMainEnd < DATE_LIMIT ) ;
}
constructor() public checkDateOrder() {
require(now < dateMainStart);
}
// set ico dates
function setDateMainStart(uint _unixts) public onlyOwner checkDateOrder {
require(now < _unixts && now < dateMainStart);
dateMainStart = _unixts;
emit IcoDateUpdated(1, _unixts);
}
function setDateMainEnd(uint _unixts) public onlyOwner checkDateOrder {
require(now < _unixts && now < dateMainEnd);
dateMainEnd = _unixts;
emit IcoDateUpdated(2, _unixts);
}
// where are we? Passed first day or not?
function isMainFirstDay() public view returns (bool) {
if (now > dateMainStart && now <= dateMainStart + 1 days) return true;
return false;
}
function isMain() public view returns (bool) {
if (now > dateMainStart && now < dateMainEnd) return true;
return false;
}
} | // ----------------------------------------------------------------------------
//
// WALLIcoDates
//
// ---------------------------------------------------------------------------- | LineComment | setDateMainStart | function setDateMainStart(uint _unixts) public onlyOwner checkDateOrder {
require(now < _unixts && now < dateMainStart);
dateMainStart = _unixts;
emit IcoDateUpdated(1, _unixts);
}
| // set ico dates | LineComment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
584,
801
]
} | 472 |
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | WALLIcoDates | contract WALLIcoDates is Owned {
uint public dateMainStart = 1619859600; // 1-MAY-2021 09:00 GMT +0
uint public dateMainEnd = 1620464400; // 8-MAY-2021 09:00 GMT +0
uint public constant DATE_LIMIT = 1620464400 + 180 days;
event IcoDateUpdated(uint id, uint unixts);
// check dates
modifier checkDateOrder {
_ ;
require ( dateMainStart < dateMainEnd ) ;
require ( dateMainEnd < DATE_LIMIT ) ;
}
constructor() public checkDateOrder() {
require(now < dateMainStart);
}
// set ico dates
function setDateMainStart(uint _unixts) public onlyOwner checkDateOrder {
require(now < _unixts && now < dateMainStart);
dateMainStart = _unixts;
emit IcoDateUpdated(1, _unixts);
}
function setDateMainEnd(uint _unixts) public onlyOwner checkDateOrder {
require(now < _unixts && now < dateMainEnd);
dateMainEnd = _unixts;
emit IcoDateUpdated(2, _unixts);
}
// where are we? Passed first day or not?
function isMainFirstDay() public view returns (bool) {
if (now > dateMainStart && now <= dateMainStart + 1 days) return true;
return false;
}
function isMain() public view returns (bool) {
if (now > dateMainStart && now < dateMainEnd) return true;
return false;
}
} | // ----------------------------------------------------------------------------
//
// WALLIcoDates
//
// ---------------------------------------------------------------------------- | LineComment | isMainFirstDay | function isMainFirstDay() public view returns (bool) {
if (now > dateMainStart && now <= dateMainStart + 1 days) return true;
return false;
}
| // where are we? Passed first day or not? | LineComment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
1067,
1236
]
} | 473 |
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | WALLToken | contract WALLToken is ERC20Token, Wallet, LockSlots, WALLIcoDates {
// Utility variable
uint constant E18 = 10**18;
// Basic token data
string public constant name = "Wall Street Decentral Token";
string public constant symbol = "WALL";
uint8 public constant decimals = 18;
// Token number of possible tokens in existance 3333333333
uint public constant MAX_TOTAL_TOKEN_SUPPLY = 3333333333 * E18;
// ICO parameters
// Opening ETH Rate: USD$1827.28
// Therefore, 1 ETH = 45682 WALL
uint public tokensPerEth = 45682;
// USD$2,000,000/1827.28 = 1094.523006 ether
// 1094.523006 ether/2551 addresses = 0.429056450 ether per address for the first 24 hours
// 65,999,999,988 MainNet Coins / 19.79999999838 = 3,333,333,333 Tokens Total Supply
uint public constant MINIMUM_CONTRIBUTION = 0.2 ether;
uint public constant MAXIMUM_FIRST_DAY_CONTRIBUTION = 0.429056450 ether;
uint public constant TOKEN_MAIN_CAP = 50000000 * E18;
bool public tokensTradeable;
// whitelisting
mapping(address => bool) public whitelist;
uint public numberWhitelisted;
// track main sale
uint public tokensMain;
mapping(address => uint) public balancesMain;
uint public totalEthContributed;
mapping(address => uint) public ethContributed;
// tracking tokens minted
uint public tokensMinted;
mapping(address => uint) public balancesMinted;
mapping(address => mapping(uint => uint)) public balancesMintedByType;
// migration variable
bool public isMigrationPhaseOpen;
// Events ---------------------------------------------
event UpdatedTokensPerEth(uint tokensPerEth);
event Whitelisted(address indexed account, uint countWhitelisted);
event TokensMinted(uint indexed mintType, address indexed account, uint tokens, uint term);
event RegisterContribution(address indexed account, uint tokensIssued, uint ethContributed, uint ethReturned);
event TokenExchangeRequested(address indexed account, uint tokens);
// Basic Functions ------------------------------------
constructor() public {}
function () public payable {
buyTokens();
}
// Information functions
function availableToMint() public view returns (uint) {
return MAX_TOTAL_TOKEN_SUPPLY.sub(TOKEN_MAIN_CAP).sub(tokensMinted);
}
function firstDayTokenLimit() public view returns (uint) {
return ethToTokens(MAXIMUM_FIRST_DAY_CONTRIBUTION);
}
function ethToTokens(uint _eth) public view returns (uint tokens) {
tokens = _eth.mul(tokensPerEth);
}
function tokensToEth(uint _tokens) public view returns (uint eth) {
eth = _tokens / tokensPerEth;
}
// Admin functions
function addToWhitelist(address _account) public onlyAdmin {
pWhitelist(_account);
}
function addToWhitelistMultiple(address[] _addresses) public onlyAdmin {
for (uint i; i < _addresses.length; i++) {
pWhitelist(_addresses[i]);
}
}
function pWhitelist(address _account) internal {
if (whitelist[_account]) return;
whitelist[_account] = true;
numberWhitelisted = numberWhitelisted.add(1);
emit Whitelisted(_account, numberWhitelisted);
}
// Owner functions ------------------------------------
function updateTokensPerEth(uint _tokens_per_eth) public onlyOwner {
require(now < dateMainStart);
tokensPerEth = _tokens_per_eth;
emit UpdatedTokensPerEth(tokensPerEth);
}
// Only owner can make tokens tradable at any time, or if the date is
// greater than the end of the mainsale date plus 20 weeks, allow
// any caller to make tokensTradeable.
function makeTradeable() public {
require(msg.sender == owner || now > dateMainEnd + 20 weeks);
tokensTradeable = true;
}
function openMigrationPhase() public onlyOwner {
require(now > dateMainEnd);
isMigrationPhaseOpen = true;
}
// Token minting --------------------------------------
function mintTokens(uint _mint_type, address _account, uint _tokens) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, 0);
}
function mintTokensMultiple(uint _mint_type, address[] _accounts, uint[] _tokens) public onlyOwner {
require(_accounts.length == _tokens.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], 0);
}
}
function mintTokensLocked(uint _mint_type, address _account, uint _tokens, uint _term) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, _term);
}
function mintTokensLockedMultiple(uint _mint_type, address[] _accounts, uint[] _tokens, uint[] _terms) public onlyOwner {
require(_accounts.length == _tokens.length);
require(_accounts.length == _terms.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], _terms[i]);
}
}
function pMintTokens(uint _mint_type, address _account, uint _tokens, uint _term) private {
require(whitelist[_account]);
require(_account != 0x0);
require(_tokens > 0);
require(_tokens <= availableToMint(), "not enough tokens available to mint");
require(_term == 0 || _term > now, "either without lock term, or lock term must be in the future");
// register locked tokens (will throw if no slot is found)
if (_term > 0) registerLockedTokens(_account, _tokens, _term);
// update
balances[_account] = balances[_account].add(_tokens);
balancesMinted[_account] = balancesMinted[_account].add(_tokens);
balancesMintedByType[_account][_mint_type] = balancesMintedByType[_account][_mint_type].add(_tokens);
tokensMinted = tokensMinted.add(_tokens);
tokensIssuedTotal = tokensIssuedTotal.add(_tokens);
// log event
emit Transfer(0x0, _account, _tokens);
emit TokensMinted(_mint_type, _account, _tokens, _term);
}
// Main sale ------------------------------------------
function buyTokens() private {
require(isMain());
require(msg.value >= MINIMUM_CONTRIBUTION);
require(whitelist[msg.sender]);
uint tokens_available = TOKEN_MAIN_CAP.sub(tokensMain);
// adjust tokens_available on first day, if necessary
if (isMainFirstDay()) {
uint tokens_available_first_day = firstDayTokenLimit().sub(balancesMain[msg.sender]);
if (tokens_available_first_day < tokens_available) {
tokens_available = tokens_available_first_day;
}
}
require (tokens_available > 0);
uint tokens_requested = ethToTokens(msg.value);
uint tokens_issued = tokens_requested;
uint eth_contributed = msg.value;
uint eth_returned;
if (tokens_requested > tokens_available) {
tokens_issued = tokens_available;
eth_returned = tokensToEth(tokens_requested.sub(tokens_available));
eth_contributed = msg.value.sub(eth_returned);
}
balances[msg.sender] = balances[msg.sender].add(tokens_issued);
balancesMain[msg.sender] = balancesMain[msg.sender].add(tokens_issued);
tokensMain = tokensMain.add(tokens_issued);
tokensIssuedTotal = tokensIssuedTotal.add(tokens_issued);
ethContributed[msg.sender] = ethContributed[msg.sender].add(eth_contributed);
totalEthContributed = totalEthContributed.add(eth_contributed);
// ether transfers
if (eth_returned > 0) msg.sender.transfer(eth_returned);
wallet.transfer(eth_contributed);
// log
emit Transfer(0x0, msg.sender, tokens_issued);
emit RegisterContribution(msg.sender, tokens_issued, eth_contributed, eth_returned);
}
// Token exchange / migration to new platform ---------
function requestTokenExchangeMax() public {
requestTokenExchange(unlockedTokensInternal(msg.sender));
}
function requestTokenExchange(uint _tokens) public {
require(isMigrationPhaseOpen);
require(_tokens > 0 && _tokens <= unlockedTokensInternal(msg.sender));
balances[msg.sender] = balances[msg.sender].sub(_tokens);
tokensIssuedTotal = tokensIssuedTotal.sub(_tokens);
emit Transfer(msg.sender, 0x0, _tokens);
emit TokenExchangeRequested(msg.sender, _tokens);
}
// ERC20 functions -------------------
/* Transfer out any accidentally sent ERC20 tokens */
function transferAnyERC20Token(address _token_address, uint _amount) public onlyOwner returns (bool success) {
return ERC20Interface(_token_address).transfer(owner, _amount);
}
/* Override "transfer" */
function transfer(address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(msg.sender));
return super.transfer(_to, _amount);
}
/* Override "transferFrom" */
function transferFrom(address _from, address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(_from));
return super.transferFrom(_from, _to, _amount);
}
/* Multiple token transfers from one address to save gas */
function transferMultiple(address[] _addresses, uint[] _amounts) external {
require(_addresses.length <= 100);
require(_addresses.length == _amounts.length);
// do the transfers
for (uint j; j < _addresses.length; j++) {
transfer(_addresses[j], _amounts[j]);
}
}
} | // ----------------------------------------------------------------------------
//
// WALL public token sale
//
// ---------------------------------------------------------------------------- | LineComment | availableToMint | function availableToMint() public view returns (uint) {
return MAX_TOTAL_TOKEN_SUPPLY.sub(TOKEN_MAIN_CAP).sub(tokensMinted);
}
| // Information functions | LineComment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
2314,
2459
]
} | 474 |
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | WALLToken | contract WALLToken is ERC20Token, Wallet, LockSlots, WALLIcoDates {
// Utility variable
uint constant E18 = 10**18;
// Basic token data
string public constant name = "Wall Street Decentral Token";
string public constant symbol = "WALL";
uint8 public constant decimals = 18;
// Token number of possible tokens in existance 3333333333
uint public constant MAX_TOTAL_TOKEN_SUPPLY = 3333333333 * E18;
// ICO parameters
// Opening ETH Rate: USD$1827.28
// Therefore, 1 ETH = 45682 WALL
uint public tokensPerEth = 45682;
// USD$2,000,000/1827.28 = 1094.523006 ether
// 1094.523006 ether/2551 addresses = 0.429056450 ether per address for the first 24 hours
// 65,999,999,988 MainNet Coins / 19.79999999838 = 3,333,333,333 Tokens Total Supply
uint public constant MINIMUM_CONTRIBUTION = 0.2 ether;
uint public constant MAXIMUM_FIRST_DAY_CONTRIBUTION = 0.429056450 ether;
uint public constant TOKEN_MAIN_CAP = 50000000 * E18;
bool public tokensTradeable;
// whitelisting
mapping(address => bool) public whitelist;
uint public numberWhitelisted;
// track main sale
uint public tokensMain;
mapping(address => uint) public balancesMain;
uint public totalEthContributed;
mapping(address => uint) public ethContributed;
// tracking tokens minted
uint public tokensMinted;
mapping(address => uint) public balancesMinted;
mapping(address => mapping(uint => uint)) public balancesMintedByType;
// migration variable
bool public isMigrationPhaseOpen;
// Events ---------------------------------------------
event UpdatedTokensPerEth(uint tokensPerEth);
event Whitelisted(address indexed account, uint countWhitelisted);
event TokensMinted(uint indexed mintType, address indexed account, uint tokens, uint term);
event RegisterContribution(address indexed account, uint tokensIssued, uint ethContributed, uint ethReturned);
event TokenExchangeRequested(address indexed account, uint tokens);
// Basic Functions ------------------------------------
constructor() public {}
function () public payable {
buyTokens();
}
// Information functions
function availableToMint() public view returns (uint) {
return MAX_TOTAL_TOKEN_SUPPLY.sub(TOKEN_MAIN_CAP).sub(tokensMinted);
}
function firstDayTokenLimit() public view returns (uint) {
return ethToTokens(MAXIMUM_FIRST_DAY_CONTRIBUTION);
}
function ethToTokens(uint _eth) public view returns (uint tokens) {
tokens = _eth.mul(tokensPerEth);
}
function tokensToEth(uint _tokens) public view returns (uint eth) {
eth = _tokens / tokensPerEth;
}
// Admin functions
function addToWhitelist(address _account) public onlyAdmin {
pWhitelist(_account);
}
function addToWhitelistMultiple(address[] _addresses) public onlyAdmin {
for (uint i; i < _addresses.length; i++) {
pWhitelist(_addresses[i]);
}
}
function pWhitelist(address _account) internal {
if (whitelist[_account]) return;
whitelist[_account] = true;
numberWhitelisted = numberWhitelisted.add(1);
emit Whitelisted(_account, numberWhitelisted);
}
// Owner functions ------------------------------------
function updateTokensPerEth(uint _tokens_per_eth) public onlyOwner {
require(now < dateMainStart);
tokensPerEth = _tokens_per_eth;
emit UpdatedTokensPerEth(tokensPerEth);
}
// Only owner can make tokens tradable at any time, or if the date is
// greater than the end of the mainsale date plus 20 weeks, allow
// any caller to make tokensTradeable.
function makeTradeable() public {
require(msg.sender == owner || now > dateMainEnd + 20 weeks);
tokensTradeable = true;
}
function openMigrationPhase() public onlyOwner {
require(now > dateMainEnd);
isMigrationPhaseOpen = true;
}
// Token minting --------------------------------------
function mintTokens(uint _mint_type, address _account, uint _tokens) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, 0);
}
function mintTokensMultiple(uint _mint_type, address[] _accounts, uint[] _tokens) public onlyOwner {
require(_accounts.length == _tokens.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], 0);
}
}
function mintTokensLocked(uint _mint_type, address _account, uint _tokens, uint _term) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, _term);
}
function mintTokensLockedMultiple(uint _mint_type, address[] _accounts, uint[] _tokens, uint[] _terms) public onlyOwner {
require(_accounts.length == _tokens.length);
require(_accounts.length == _terms.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], _terms[i]);
}
}
function pMintTokens(uint _mint_type, address _account, uint _tokens, uint _term) private {
require(whitelist[_account]);
require(_account != 0x0);
require(_tokens > 0);
require(_tokens <= availableToMint(), "not enough tokens available to mint");
require(_term == 0 || _term > now, "either without lock term, or lock term must be in the future");
// register locked tokens (will throw if no slot is found)
if (_term > 0) registerLockedTokens(_account, _tokens, _term);
// update
balances[_account] = balances[_account].add(_tokens);
balancesMinted[_account] = balancesMinted[_account].add(_tokens);
balancesMintedByType[_account][_mint_type] = balancesMintedByType[_account][_mint_type].add(_tokens);
tokensMinted = tokensMinted.add(_tokens);
tokensIssuedTotal = tokensIssuedTotal.add(_tokens);
// log event
emit Transfer(0x0, _account, _tokens);
emit TokensMinted(_mint_type, _account, _tokens, _term);
}
// Main sale ------------------------------------------
function buyTokens() private {
require(isMain());
require(msg.value >= MINIMUM_CONTRIBUTION);
require(whitelist[msg.sender]);
uint tokens_available = TOKEN_MAIN_CAP.sub(tokensMain);
// adjust tokens_available on first day, if necessary
if (isMainFirstDay()) {
uint tokens_available_first_day = firstDayTokenLimit().sub(balancesMain[msg.sender]);
if (tokens_available_first_day < tokens_available) {
tokens_available = tokens_available_first_day;
}
}
require (tokens_available > 0);
uint tokens_requested = ethToTokens(msg.value);
uint tokens_issued = tokens_requested;
uint eth_contributed = msg.value;
uint eth_returned;
if (tokens_requested > tokens_available) {
tokens_issued = tokens_available;
eth_returned = tokensToEth(tokens_requested.sub(tokens_available));
eth_contributed = msg.value.sub(eth_returned);
}
balances[msg.sender] = balances[msg.sender].add(tokens_issued);
balancesMain[msg.sender] = balancesMain[msg.sender].add(tokens_issued);
tokensMain = tokensMain.add(tokens_issued);
tokensIssuedTotal = tokensIssuedTotal.add(tokens_issued);
ethContributed[msg.sender] = ethContributed[msg.sender].add(eth_contributed);
totalEthContributed = totalEthContributed.add(eth_contributed);
// ether transfers
if (eth_returned > 0) msg.sender.transfer(eth_returned);
wallet.transfer(eth_contributed);
// log
emit Transfer(0x0, msg.sender, tokens_issued);
emit RegisterContribution(msg.sender, tokens_issued, eth_contributed, eth_returned);
}
// Token exchange / migration to new platform ---------
function requestTokenExchangeMax() public {
requestTokenExchange(unlockedTokensInternal(msg.sender));
}
function requestTokenExchange(uint _tokens) public {
require(isMigrationPhaseOpen);
require(_tokens > 0 && _tokens <= unlockedTokensInternal(msg.sender));
balances[msg.sender] = balances[msg.sender].sub(_tokens);
tokensIssuedTotal = tokensIssuedTotal.sub(_tokens);
emit Transfer(msg.sender, 0x0, _tokens);
emit TokenExchangeRequested(msg.sender, _tokens);
}
// ERC20 functions -------------------
/* Transfer out any accidentally sent ERC20 tokens */
function transferAnyERC20Token(address _token_address, uint _amount) public onlyOwner returns (bool success) {
return ERC20Interface(_token_address).transfer(owner, _amount);
}
/* Override "transfer" */
function transfer(address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(msg.sender));
return super.transfer(_to, _amount);
}
/* Override "transferFrom" */
function transferFrom(address _from, address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(_from));
return super.transferFrom(_from, _to, _amount);
}
/* Multiple token transfers from one address to save gas */
function transferMultiple(address[] _addresses, uint[] _amounts) external {
require(_addresses.length <= 100);
require(_addresses.length == _amounts.length);
// do the transfers
for (uint j; j < _addresses.length; j++) {
transfer(_addresses[j], _amounts[j]);
}
}
} | // ----------------------------------------------------------------------------
//
// WALL public token sale
//
// ---------------------------------------------------------------------------- | LineComment | addToWhitelist | function addToWhitelist(address _account) public onlyAdmin {
pWhitelist(_account);
}
| // Admin functions | LineComment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
2867,
2970
]
} | 475 |
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | WALLToken | contract WALLToken is ERC20Token, Wallet, LockSlots, WALLIcoDates {
// Utility variable
uint constant E18 = 10**18;
// Basic token data
string public constant name = "Wall Street Decentral Token";
string public constant symbol = "WALL";
uint8 public constant decimals = 18;
// Token number of possible tokens in existance 3333333333
uint public constant MAX_TOTAL_TOKEN_SUPPLY = 3333333333 * E18;
// ICO parameters
// Opening ETH Rate: USD$1827.28
// Therefore, 1 ETH = 45682 WALL
uint public tokensPerEth = 45682;
// USD$2,000,000/1827.28 = 1094.523006 ether
// 1094.523006 ether/2551 addresses = 0.429056450 ether per address for the first 24 hours
// 65,999,999,988 MainNet Coins / 19.79999999838 = 3,333,333,333 Tokens Total Supply
uint public constant MINIMUM_CONTRIBUTION = 0.2 ether;
uint public constant MAXIMUM_FIRST_DAY_CONTRIBUTION = 0.429056450 ether;
uint public constant TOKEN_MAIN_CAP = 50000000 * E18;
bool public tokensTradeable;
// whitelisting
mapping(address => bool) public whitelist;
uint public numberWhitelisted;
// track main sale
uint public tokensMain;
mapping(address => uint) public balancesMain;
uint public totalEthContributed;
mapping(address => uint) public ethContributed;
// tracking tokens minted
uint public tokensMinted;
mapping(address => uint) public balancesMinted;
mapping(address => mapping(uint => uint)) public balancesMintedByType;
// migration variable
bool public isMigrationPhaseOpen;
// Events ---------------------------------------------
event UpdatedTokensPerEth(uint tokensPerEth);
event Whitelisted(address indexed account, uint countWhitelisted);
event TokensMinted(uint indexed mintType, address indexed account, uint tokens, uint term);
event RegisterContribution(address indexed account, uint tokensIssued, uint ethContributed, uint ethReturned);
event TokenExchangeRequested(address indexed account, uint tokens);
// Basic Functions ------------------------------------
constructor() public {}
function () public payable {
buyTokens();
}
// Information functions
function availableToMint() public view returns (uint) {
return MAX_TOTAL_TOKEN_SUPPLY.sub(TOKEN_MAIN_CAP).sub(tokensMinted);
}
function firstDayTokenLimit() public view returns (uint) {
return ethToTokens(MAXIMUM_FIRST_DAY_CONTRIBUTION);
}
function ethToTokens(uint _eth) public view returns (uint tokens) {
tokens = _eth.mul(tokensPerEth);
}
function tokensToEth(uint _tokens) public view returns (uint eth) {
eth = _tokens / tokensPerEth;
}
// Admin functions
function addToWhitelist(address _account) public onlyAdmin {
pWhitelist(_account);
}
function addToWhitelistMultiple(address[] _addresses) public onlyAdmin {
for (uint i; i < _addresses.length; i++) {
pWhitelist(_addresses[i]);
}
}
function pWhitelist(address _account) internal {
if (whitelist[_account]) return;
whitelist[_account] = true;
numberWhitelisted = numberWhitelisted.add(1);
emit Whitelisted(_account, numberWhitelisted);
}
// Owner functions ------------------------------------
function updateTokensPerEth(uint _tokens_per_eth) public onlyOwner {
require(now < dateMainStart);
tokensPerEth = _tokens_per_eth;
emit UpdatedTokensPerEth(tokensPerEth);
}
// Only owner can make tokens tradable at any time, or if the date is
// greater than the end of the mainsale date plus 20 weeks, allow
// any caller to make tokensTradeable.
function makeTradeable() public {
require(msg.sender == owner || now > dateMainEnd + 20 weeks);
tokensTradeable = true;
}
function openMigrationPhase() public onlyOwner {
require(now > dateMainEnd);
isMigrationPhaseOpen = true;
}
// Token minting --------------------------------------
function mintTokens(uint _mint_type, address _account, uint _tokens) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, 0);
}
function mintTokensMultiple(uint _mint_type, address[] _accounts, uint[] _tokens) public onlyOwner {
require(_accounts.length == _tokens.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], 0);
}
}
function mintTokensLocked(uint _mint_type, address _account, uint _tokens, uint _term) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, _term);
}
function mintTokensLockedMultiple(uint _mint_type, address[] _accounts, uint[] _tokens, uint[] _terms) public onlyOwner {
require(_accounts.length == _tokens.length);
require(_accounts.length == _terms.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], _terms[i]);
}
}
function pMintTokens(uint _mint_type, address _account, uint _tokens, uint _term) private {
require(whitelist[_account]);
require(_account != 0x0);
require(_tokens > 0);
require(_tokens <= availableToMint(), "not enough tokens available to mint");
require(_term == 0 || _term > now, "either without lock term, or lock term must be in the future");
// register locked tokens (will throw if no slot is found)
if (_term > 0) registerLockedTokens(_account, _tokens, _term);
// update
balances[_account] = balances[_account].add(_tokens);
balancesMinted[_account] = balancesMinted[_account].add(_tokens);
balancesMintedByType[_account][_mint_type] = balancesMintedByType[_account][_mint_type].add(_tokens);
tokensMinted = tokensMinted.add(_tokens);
tokensIssuedTotal = tokensIssuedTotal.add(_tokens);
// log event
emit Transfer(0x0, _account, _tokens);
emit TokensMinted(_mint_type, _account, _tokens, _term);
}
// Main sale ------------------------------------------
function buyTokens() private {
require(isMain());
require(msg.value >= MINIMUM_CONTRIBUTION);
require(whitelist[msg.sender]);
uint tokens_available = TOKEN_MAIN_CAP.sub(tokensMain);
// adjust tokens_available on first day, if necessary
if (isMainFirstDay()) {
uint tokens_available_first_day = firstDayTokenLimit().sub(balancesMain[msg.sender]);
if (tokens_available_first_day < tokens_available) {
tokens_available = tokens_available_first_day;
}
}
require (tokens_available > 0);
uint tokens_requested = ethToTokens(msg.value);
uint tokens_issued = tokens_requested;
uint eth_contributed = msg.value;
uint eth_returned;
if (tokens_requested > tokens_available) {
tokens_issued = tokens_available;
eth_returned = tokensToEth(tokens_requested.sub(tokens_available));
eth_contributed = msg.value.sub(eth_returned);
}
balances[msg.sender] = balances[msg.sender].add(tokens_issued);
balancesMain[msg.sender] = balancesMain[msg.sender].add(tokens_issued);
tokensMain = tokensMain.add(tokens_issued);
tokensIssuedTotal = tokensIssuedTotal.add(tokens_issued);
ethContributed[msg.sender] = ethContributed[msg.sender].add(eth_contributed);
totalEthContributed = totalEthContributed.add(eth_contributed);
// ether transfers
if (eth_returned > 0) msg.sender.transfer(eth_returned);
wallet.transfer(eth_contributed);
// log
emit Transfer(0x0, msg.sender, tokens_issued);
emit RegisterContribution(msg.sender, tokens_issued, eth_contributed, eth_returned);
}
// Token exchange / migration to new platform ---------
function requestTokenExchangeMax() public {
requestTokenExchange(unlockedTokensInternal(msg.sender));
}
function requestTokenExchange(uint _tokens) public {
require(isMigrationPhaseOpen);
require(_tokens > 0 && _tokens <= unlockedTokensInternal(msg.sender));
balances[msg.sender] = balances[msg.sender].sub(_tokens);
tokensIssuedTotal = tokensIssuedTotal.sub(_tokens);
emit Transfer(msg.sender, 0x0, _tokens);
emit TokenExchangeRequested(msg.sender, _tokens);
}
// ERC20 functions -------------------
/* Transfer out any accidentally sent ERC20 tokens */
function transferAnyERC20Token(address _token_address, uint _amount) public onlyOwner returns (bool success) {
return ERC20Interface(_token_address).transfer(owner, _amount);
}
/* Override "transfer" */
function transfer(address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(msg.sender));
return super.transfer(_to, _amount);
}
/* Override "transferFrom" */
function transferFrom(address _from, address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(_from));
return super.transferFrom(_from, _to, _amount);
}
/* Multiple token transfers from one address to save gas */
function transferMultiple(address[] _addresses, uint[] _amounts) external {
require(_addresses.length <= 100);
require(_addresses.length == _amounts.length);
// do the transfers
for (uint j; j < _addresses.length; j++) {
transfer(_addresses[j], _amounts[j]);
}
}
} | // ----------------------------------------------------------------------------
//
// WALL public token sale
//
// ---------------------------------------------------------------------------- | LineComment | updateTokensPerEth | function updateTokensPerEth(uint _tokens_per_eth) public onlyOwner {
require(now < dateMainStart);
tokensPerEth = _tokens_per_eth;
emit UpdatedTokensPerEth(tokensPerEth);
}
| // Owner functions ------------------------------------ | LineComment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
3479,
3688
]
} | 476 |
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | WALLToken | contract WALLToken is ERC20Token, Wallet, LockSlots, WALLIcoDates {
// Utility variable
uint constant E18 = 10**18;
// Basic token data
string public constant name = "Wall Street Decentral Token";
string public constant symbol = "WALL";
uint8 public constant decimals = 18;
// Token number of possible tokens in existance 3333333333
uint public constant MAX_TOTAL_TOKEN_SUPPLY = 3333333333 * E18;
// ICO parameters
// Opening ETH Rate: USD$1827.28
// Therefore, 1 ETH = 45682 WALL
uint public tokensPerEth = 45682;
// USD$2,000,000/1827.28 = 1094.523006 ether
// 1094.523006 ether/2551 addresses = 0.429056450 ether per address for the first 24 hours
// 65,999,999,988 MainNet Coins / 19.79999999838 = 3,333,333,333 Tokens Total Supply
uint public constant MINIMUM_CONTRIBUTION = 0.2 ether;
uint public constant MAXIMUM_FIRST_DAY_CONTRIBUTION = 0.429056450 ether;
uint public constant TOKEN_MAIN_CAP = 50000000 * E18;
bool public tokensTradeable;
// whitelisting
mapping(address => bool) public whitelist;
uint public numberWhitelisted;
// track main sale
uint public tokensMain;
mapping(address => uint) public balancesMain;
uint public totalEthContributed;
mapping(address => uint) public ethContributed;
// tracking tokens minted
uint public tokensMinted;
mapping(address => uint) public balancesMinted;
mapping(address => mapping(uint => uint)) public balancesMintedByType;
// migration variable
bool public isMigrationPhaseOpen;
// Events ---------------------------------------------
event UpdatedTokensPerEth(uint tokensPerEth);
event Whitelisted(address indexed account, uint countWhitelisted);
event TokensMinted(uint indexed mintType, address indexed account, uint tokens, uint term);
event RegisterContribution(address indexed account, uint tokensIssued, uint ethContributed, uint ethReturned);
event TokenExchangeRequested(address indexed account, uint tokens);
// Basic Functions ------------------------------------
constructor() public {}
function () public payable {
buyTokens();
}
// Information functions
function availableToMint() public view returns (uint) {
return MAX_TOTAL_TOKEN_SUPPLY.sub(TOKEN_MAIN_CAP).sub(tokensMinted);
}
function firstDayTokenLimit() public view returns (uint) {
return ethToTokens(MAXIMUM_FIRST_DAY_CONTRIBUTION);
}
function ethToTokens(uint _eth) public view returns (uint tokens) {
tokens = _eth.mul(tokensPerEth);
}
function tokensToEth(uint _tokens) public view returns (uint eth) {
eth = _tokens / tokensPerEth;
}
// Admin functions
function addToWhitelist(address _account) public onlyAdmin {
pWhitelist(_account);
}
function addToWhitelistMultiple(address[] _addresses) public onlyAdmin {
for (uint i; i < _addresses.length; i++) {
pWhitelist(_addresses[i]);
}
}
function pWhitelist(address _account) internal {
if (whitelist[_account]) return;
whitelist[_account] = true;
numberWhitelisted = numberWhitelisted.add(1);
emit Whitelisted(_account, numberWhitelisted);
}
// Owner functions ------------------------------------
function updateTokensPerEth(uint _tokens_per_eth) public onlyOwner {
require(now < dateMainStart);
tokensPerEth = _tokens_per_eth;
emit UpdatedTokensPerEth(tokensPerEth);
}
// Only owner can make tokens tradable at any time, or if the date is
// greater than the end of the mainsale date plus 20 weeks, allow
// any caller to make tokensTradeable.
function makeTradeable() public {
require(msg.sender == owner || now > dateMainEnd + 20 weeks);
tokensTradeable = true;
}
function openMigrationPhase() public onlyOwner {
require(now > dateMainEnd);
isMigrationPhaseOpen = true;
}
// Token minting --------------------------------------
function mintTokens(uint _mint_type, address _account, uint _tokens) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, 0);
}
function mintTokensMultiple(uint _mint_type, address[] _accounts, uint[] _tokens) public onlyOwner {
require(_accounts.length == _tokens.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], 0);
}
}
function mintTokensLocked(uint _mint_type, address _account, uint _tokens, uint _term) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, _term);
}
function mintTokensLockedMultiple(uint _mint_type, address[] _accounts, uint[] _tokens, uint[] _terms) public onlyOwner {
require(_accounts.length == _tokens.length);
require(_accounts.length == _terms.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], _terms[i]);
}
}
function pMintTokens(uint _mint_type, address _account, uint _tokens, uint _term) private {
require(whitelist[_account]);
require(_account != 0x0);
require(_tokens > 0);
require(_tokens <= availableToMint(), "not enough tokens available to mint");
require(_term == 0 || _term > now, "either without lock term, or lock term must be in the future");
// register locked tokens (will throw if no slot is found)
if (_term > 0) registerLockedTokens(_account, _tokens, _term);
// update
balances[_account] = balances[_account].add(_tokens);
balancesMinted[_account] = balancesMinted[_account].add(_tokens);
balancesMintedByType[_account][_mint_type] = balancesMintedByType[_account][_mint_type].add(_tokens);
tokensMinted = tokensMinted.add(_tokens);
tokensIssuedTotal = tokensIssuedTotal.add(_tokens);
// log event
emit Transfer(0x0, _account, _tokens);
emit TokensMinted(_mint_type, _account, _tokens, _term);
}
// Main sale ------------------------------------------
function buyTokens() private {
require(isMain());
require(msg.value >= MINIMUM_CONTRIBUTION);
require(whitelist[msg.sender]);
uint tokens_available = TOKEN_MAIN_CAP.sub(tokensMain);
// adjust tokens_available on first day, if necessary
if (isMainFirstDay()) {
uint tokens_available_first_day = firstDayTokenLimit().sub(balancesMain[msg.sender]);
if (tokens_available_first_day < tokens_available) {
tokens_available = tokens_available_first_day;
}
}
require (tokens_available > 0);
uint tokens_requested = ethToTokens(msg.value);
uint tokens_issued = tokens_requested;
uint eth_contributed = msg.value;
uint eth_returned;
if (tokens_requested > tokens_available) {
tokens_issued = tokens_available;
eth_returned = tokensToEth(tokens_requested.sub(tokens_available));
eth_contributed = msg.value.sub(eth_returned);
}
balances[msg.sender] = balances[msg.sender].add(tokens_issued);
balancesMain[msg.sender] = balancesMain[msg.sender].add(tokens_issued);
tokensMain = tokensMain.add(tokens_issued);
tokensIssuedTotal = tokensIssuedTotal.add(tokens_issued);
ethContributed[msg.sender] = ethContributed[msg.sender].add(eth_contributed);
totalEthContributed = totalEthContributed.add(eth_contributed);
// ether transfers
if (eth_returned > 0) msg.sender.transfer(eth_returned);
wallet.transfer(eth_contributed);
// log
emit Transfer(0x0, msg.sender, tokens_issued);
emit RegisterContribution(msg.sender, tokens_issued, eth_contributed, eth_returned);
}
// Token exchange / migration to new platform ---------
function requestTokenExchangeMax() public {
requestTokenExchange(unlockedTokensInternal(msg.sender));
}
function requestTokenExchange(uint _tokens) public {
require(isMigrationPhaseOpen);
require(_tokens > 0 && _tokens <= unlockedTokensInternal(msg.sender));
balances[msg.sender] = balances[msg.sender].sub(_tokens);
tokensIssuedTotal = tokensIssuedTotal.sub(_tokens);
emit Transfer(msg.sender, 0x0, _tokens);
emit TokenExchangeRequested(msg.sender, _tokens);
}
// ERC20 functions -------------------
/* Transfer out any accidentally sent ERC20 tokens */
function transferAnyERC20Token(address _token_address, uint _amount) public onlyOwner returns (bool success) {
return ERC20Interface(_token_address).transfer(owner, _amount);
}
/* Override "transfer" */
function transfer(address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(msg.sender));
return super.transfer(_to, _amount);
}
/* Override "transferFrom" */
function transferFrom(address _from, address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(_from));
return super.transferFrom(_from, _to, _amount);
}
/* Multiple token transfers from one address to save gas */
function transferMultiple(address[] _addresses, uint[] _amounts) external {
require(_addresses.length <= 100);
require(_addresses.length == _amounts.length);
// do the transfers
for (uint j; j < _addresses.length; j++) {
transfer(_addresses[j], _amounts[j]);
}
}
} | // ----------------------------------------------------------------------------
//
// WALL public token sale
//
// ---------------------------------------------------------------------------- | LineComment | makeTradeable | function makeTradeable() public {
require(msg.sender == owner || now > dateMainEnd + 20 weeks);
tokensTradeable = true;
}
| // Only owner can make tokens tradable at any time, or if the date is
// greater than the end of the mainsale date plus 20 weeks, allow
// any caller to make tokensTradeable. | LineComment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
3883,
4032
]
} | 477 |
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | WALLToken | contract WALLToken is ERC20Token, Wallet, LockSlots, WALLIcoDates {
// Utility variable
uint constant E18 = 10**18;
// Basic token data
string public constant name = "Wall Street Decentral Token";
string public constant symbol = "WALL";
uint8 public constant decimals = 18;
// Token number of possible tokens in existance 3333333333
uint public constant MAX_TOTAL_TOKEN_SUPPLY = 3333333333 * E18;
// ICO parameters
// Opening ETH Rate: USD$1827.28
// Therefore, 1 ETH = 45682 WALL
uint public tokensPerEth = 45682;
// USD$2,000,000/1827.28 = 1094.523006 ether
// 1094.523006 ether/2551 addresses = 0.429056450 ether per address for the first 24 hours
// 65,999,999,988 MainNet Coins / 19.79999999838 = 3,333,333,333 Tokens Total Supply
uint public constant MINIMUM_CONTRIBUTION = 0.2 ether;
uint public constant MAXIMUM_FIRST_DAY_CONTRIBUTION = 0.429056450 ether;
uint public constant TOKEN_MAIN_CAP = 50000000 * E18;
bool public tokensTradeable;
// whitelisting
mapping(address => bool) public whitelist;
uint public numberWhitelisted;
// track main sale
uint public tokensMain;
mapping(address => uint) public balancesMain;
uint public totalEthContributed;
mapping(address => uint) public ethContributed;
// tracking tokens minted
uint public tokensMinted;
mapping(address => uint) public balancesMinted;
mapping(address => mapping(uint => uint)) public balancesMintedByType;
// migration variable
bool public isMigrationPhaseOpen;
// Events ---------------------------------------------
event UpdatedTokensPerEth(uint tokensPerEth);
event Whitelisted(address indexed account, uint countWhitelisted);
event TokensMinted(uint indexed mintType, address indexed account, uint tokens, uint term);
event RegisterContribution(address indexed account, uint tokensIssued, uint ethContributed, uint ethReturned);
event TokenExchangeRequested(address indexed account, uint tokens);
// Basic Functions ------------------------------------
constructor() public {}
function () public payable {
buyTokens();
}
// Information functions
function availableToMint() public view returns (uint) {
return MAX_TOTAL_TOKEN_SUPPLY.sub(TOKEN_MAIN_CAP).sub(tokensMinted);
}
function firstDayTokenLimit() public view returns (uint) {
return ethToTokens(MAXIMUM_FIRST_DAY_CONTRIBUTION);
}
function ethToTokens(uint _eth) public view returns (uint tokens) {
tokens = _eth.mul(tokensPerEth);
}
function tokensToEth(uint _tokens) public view returns (uint eth) {
eth = _tokens / tokensPerEth;
}
// Admin functions
function addToWhitelist(address _account) public onlyAdmin {
pWhitelist(_account);
}
function addToWhitelistMultiple(address[] _addresses) public onlyAdmin {
for (uint i; i < _addresses.length; i++) {
pWhitelist(_addresses[i]);
}
}
function pWhitelist(address _account) internal {
if (whitelist[_account]) return;
whitelist[_account] = true;
numberWhitelisted = numberWhitelisted.add(1);
emit Whitelisted(_account, numberWhitelisted);
}
// Owner functions ------------------------------------
function updateTokensPerEth(uint _tokens_per_eth) public onlyOwner {
require(now < dateMainStart);
tokensPerEth = _tokens_per_eth;
emit UpdatedTokensPerEth(tokensPerEth);
}
// Only owner can make tokens tradable at any time, or if the date is
// greater than the end of the mainsale date plus 20 weeks, allow
// any caller to make tokensTradeable.
function makeTradeable() public {
require(msg.sender == owner || now > dateMainEnd + 20 weeks);
tokensTradeable = true;
}
function openMigrationPhase() public onlyOwner {
require(now > dateMainEnd);
isMigrationPhaseOpen = true;
}
// Token minting --------------------------------------
function mintTokens(uint _mint_type, address _account, uint _tokens) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, 0);
}
function mintTokensMultiple(uint _mint_type, address[] _accounts, uint[] _tokens) public onlyOwner {
require(_accounts.length == _tokens.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], 0);
}
}
function mintTokensLocked(uint _mint_type, address _account, uint _tokens, uint _term) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, _term);
}
function mintTokensLockedMultiple(uint _mint_type, address[] _accounts, uint[] _tokens, uint[] _terms) public onlyOwner {
require(_accounts.length == _tokens.length);
require(_accounts.length == _terms.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], _terms[i]);
}
}
function pMintTokens(uint _mint_type, address _account, uint _tokens, uint _term) private {
require(whitelist[_account]);
require(_account != 0x0);
require(_tokens > 0);
require(_tokens <= availableToMint(), "not enough tokens available to mint");
require(_term == 0 || _term > now, "either without lock term, or lock term must be in the future");
// register locked tokens (will throw if no slot is found)
if (_term > 0) registerLockedTokens(_account, _tokens, _term);
// update
balances[_account] = balances[_account].add(_tokens);
balancesMinted[_account] = balancesMinted[_account].add(_tokens);
balancesMintedByType[_account][_mint_type] = balancesMintedByType[_account][_mint_type].add(_tokens);
tokensMinted = tokensMinted.add(_tokens);
tokensIssuedTotal = tokensIssuedTotal.add(_tokens);
// log event
emit Transfer(0x0, _account, _tokens);
emit TokensMinted(_mint_type, _account, _tokens, _term);
}
// Main sale ------------------------------------------
function buyTokens() private {
require(isMain());
require(msg.value >= MINIMUM_CONTRIBUTION);
require(whitelist[msg.sender]);
uint tokens_available = TOKEN_MAIN_CAP.sub(tokensMain);
// adjust tokens_available on first day, if necessary
if (isMainFirstDay()) {
uint tokens_available_first_day = firstDayTokenLimit().sub(balancesMain[msg.sender]);
if (tokens_available_first_day < tokens_available) {
tokens_available = tokens_available_first_day;
}
}
require (tokens_available > 0);
uint tokens_requested = ethToTokens(msg.value);
uint tokens_issued = tokens_requested;
uint eth_contributed = msg.value;
uint eth_returned;
if (tokens_requested > tokens_available) {
tokens_issued = tokens_available;
eth_returned = tokensToEth(tokens_requested.sub(tokens_available));
eth_contributed = msg.value.sub(eth_returned);
}
balances[msg.sender] = balances[msg.sender].add(tokens_issued);
balancesMain[msg.sender] = balancesMain[msg.sender].add(tokens_issued);
tokensMain = tokensMain.add(tokens_issued);
tokensIssuedTotal = tokensIssuedTotal.add(tokens_issued);
ethContributed[msg.sender] = ethContributed[msg.sender].add(eth_contributed);
totalEthContributed = totalEthContributed.add(eth_contributed);
// ether transfers
if (eth_returned > 0) msg.sender.transfer(eth_returned);
wallet.transfer(eth_contributed);
// log
emit Transfer(0x0, msg.sender, tokens_issued);
emit RegisterContribution(msg.sender, tokens_issued, eth_contributed, eth_returned);
}
// Token exchange / migration to new platform ---------
function requestTokenExchangeMax() public {
requestTokenExchange(unlockedTokensInternal(msg.sender));
}
function requestTokenExchange(uint _tokens) public {
require(isMigrationPhaseOpen);
require(_tokens > 0 && _tokens <= unlockedTokensInternal(msg.sender));
balances[msg.sender] = balances[msg.sender].sub(_tokens);
tokensIssuedTotal = tokensIssuedTotal.sub(_tokens);
emit Transfer(msg.sender, 0x0, _tokens);
emit TokenExchangeRequested(msg.sender, _tokens);
}
// ERC20 functions -------------------
/* Transfer out any accidentally sent ERC20 tokens */
function transferAnyERC20Token(address _token_address, uint _amount) public onlyOwner returns (bool success) {
return ERC20Interface(_token_address).transfer(owner, _amount);
}
/* Override "transfer" */
function transfer(address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(msg.sender));
return super.transfer(_to, _amount);
}
/* Override "transferFrom" */
function transferFrom(address _from, address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(_from));
return super.transferFrom(_from, _to, _amount);
}
/* Multiple token transfers from one address to save gas */
function transferMultiple(address[] _addresses, uint[] _amounts) external {
require(_addresses.length <= 100);
require(_addresses.length == _amounts.length);
// do the transfers
for (uint j; j < _addresses.length; j++) {
transfer(_addresses[j], _amounts[j]);
}
}
} | // ----------------------------------------------------------------------------
//
// WALL public token sale
//
// ---------------------------------------------------------------------------- | LineComment | mintTokens | function mintTokens(uint _mint_type, address _account, uint _tokens) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, 0);
}
| // Token minting -------------------------------------- | LineComment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
4236,
4391
]
} | 478 |
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | WALLToken | contract WALLToken is ERC20Token, Wallet, LockSlots, WALLIcoDates {
// Utility variable
uint constant E18 = 10**18;
// Basic token data
string public constant name = "Wall Street Decentral Token";
string public constant symbol = "WALL";
uint8 public constant decimals = 18;
// Token number of possible tokens in existance 3333333333
uint public constant MAX_TOTAL_TOKEN_SUPPLY = 3333333333 * E18;
// ICO parameters
// Opening ETH Rate: USD$1827.28
// Therefore, 1 ETH = 45682 WALL
uint public tokensPerEth = 45682;
// USD$2,000,000/1827.28 = 1094.523006 ether
// 1094.523006 ether/2551 addresses = 0.429056450 ether per address for the first 24 hours
// 65,999,999,988 MainNet Coins / 19.79999999838 = 3,333,333,333 Tokens Total Supply
uint public constant MINIMUM_CONTRIBUTION = 0.2 ether;
uint public constant MAXIMUM_FIRST_DAY_CONTRIBUTION = 0.429056450 ether;
uint public constant TOKEN_MAIN_CAP = 50000000 * E18;
bool public tokensTradeable;
// whitelisting
mapping(address => bool) public whitelist;
uint public numberWhitelisted;
// track main sale
uint public tokensMain;
mapping(address => uint) public balancesMain;
uint public totalEthContributed;
mapping(address => uint) public ethContributed;
// tracking tokens minted
uint public tokensMinted;
mapping(address => uint) public balancesMinted;
mapping(address => mapping(uint => uint)) public balancesMintedByType;
// migration variable
bool public isMigrationPhaseOpen;
// Events ---------------------------------------------
event UpdatedTokensPerEth(uint tokensPerEth);
event Whitelisted(address indexed account, uint countWhitelisted);
event TokensMinted(uint indexed mintType, address indexed account, uint tokens, uint term);
event RegisterContribution(address indexed account, uint tokensIssued, uint ethContributed, uint ethReturned);
event TokenExchangeRequested(address indexed account, uint tokens);
// Basic Functions ------------------------------------
constructor() public {}
function () public payable {
buyTokens();
}
// Information functions
function availableToMint() public view returns (uint) {
return MAX_TOTAL_TOKEN_SUPPLY.sub(TOKEN_MAIN_CAP).sub(tokensMinted);
}
function firstDayTokenLimit() public view returns (uint) {
return ethToTokens(MAXIMUM_FIRST_DAY_CONTRIBUTION);
}
function ethToTokens(uint _eth) public view returns (uint tokens) {
tokens = _eth.mul(tokensPerEth);
}
function tokensToEth(uint _tokens) public view returns (uint eth) {
eth = _tokens / tokensPerEth;
}
// Admin functions
function addToWhitelist(address _account) public onlyAdmin {
pWhitelist(_account);
}
function addToWhitelistMultiple(address[] _addresses) public onlyAdmin {
for (uint i; i < _addresses.length; i++) {
pWhitelist(_addresses[i]);
}
}
function pWhitelist(address _account) internal {
if (whitelist[_account]) return;
whitelist[_account] = true;
numberWhitelisted = numberWhitelisted.add(1);
emit Whitelisted(_account, numberWhitelisted);
}
// Owner functions ------------------------------------
function updateTokensPerEth(uint _tokens_per_eth) public onlyOwner {
require(now < dateMainStart);
tokensPerEth = _tokens_per_eth;
emit UpdatedTokensPerEth(tokensPerEth);
}
// Only owner can make tokens tradable at any time, or if the date is
// greater than the end of the mainsale date plus 20 weeks, allow
// any caller to make tokensTradeable.
function makeTradeable() public {
require(msg.sender == owner || now > dateMainEnd + 20 weeks);
tokensTradeable = true;
}
function openMigrationPhase() public onlyOwner {
require(now > dateMainEnd);
isMigrationPhaseOpen = true;
}
// Token minting --------------------------------------
function mintTokens(uint _mint_type, address _account, uint _tokens) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, 0);
}
function mintTokensMultiple(uint _mint_type, address[] _accounts, uint[] _tokens) public onlyOwner {
require(_accounts.length == _tokens.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], 0);
}
}
function mintTokensLocked(uint _mint_type, address _account, uint _tokens, uint _term) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, _term);
}
function mintTokensLockedMultiple(uint _mint_type, address[] _accounts, uint[] _tokens, uint[] _terms) public onlyOwner {
require(_accounts.length == _tokens.length);
require(_accounts.length == _terms.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], _terms[i]);
}
}
function pMintTokens(uint _mint_type, address _account, uint _tokens, uint _term) private {
require(whitelist[_account]);
require(_account != 0x0);
require(_tokens > 0);
require(_tokens <= availableToMint(), "not enough tokens available to mint");
require(_term == 0 || _term > now, "either without lock term, or lock term must be in the future");
// register locked tokens (will throw if no slot is found)
if (_term > 0) registerLockedTokens(_account, _tokens, _term);
// update
balances[_account] = balances[_account].add(_tokens);
balancesMinted[_account] = balancesMinted[_account].add(_tokens);
balancesMintedByType[_account][_mint_type] = balancesMintedByType[_account][_mint_type].add(_tokens);
tokensMinted = tokensMinted.add(_tokens);
tokensIssuedTotal = tokensIssuedTotal.add(_tokens);
// log event
emit Transfer(0x0, _account, _tokens);
emit TokensMinted(_mint_type, _account, _tokens, _term);
}
// Main sale ------------------------------------------
function buyTokens() private {
require(isMain());
require(msg.value >= MINIMUM_CONTRIBUTION);
require(whitelist[msg.sender]);
uint tokens_available = TOKEN_MAIN_CAP.sub(tokensMain);
// adjust tokens_available on first day, if necessary
if (isMainFirstDay()) {
uint tokens_available_first_day = firstDayTokenLimit().sub(balancesMain[msg.sender]);
if (tokens_available_first_day < tokens_available) {
tokens_available = tokens_available_first_day;
}
}
require (tokens_available > 0);
uint tokens_requested = ethToTokens(msg.value);
uint tokens_issued = tokens_requested;
uint eth_contributed = msg.value;
uint eth_returned;
if (tokens_requested > tokens_available) {
tokens_issued = tokens_available;
eth_returned = tokensToEth(tokens_requested.sub(tokens_available));
eth_contributed = msg.value.sub(eth_returned);
}
balances[msg.sender] = balances[msg.sender].add(tokens_issued);
balancesMain[msg.sender] = balancesMain[msg.sender].add(tokens_issued);
tokensMain = tokensMain.add(tokens_issued);
tokensIssuedTotal = tokensIssuedTotal.add(tokens_issued);
ethContributed[msg.sender] = ethContributed[msg.sender].add(eth_contributed);
totalEthContributed = totalEthContributed.add(eth_contributed);
// ether transfers
if (eth_returned > 0) msg.sender.transfer(eth_returned);
wallet.transfer(eth_contributed);
// log
emit Transfer(0x0, msg.sender, tokens_issued);
emit RegisterContribution(msg.sender, tokens_issued, eth_contributed, eth_returned);
}
// Token exchange / migration to new platform ---------
function requestTokenExchangeMax() public {
requestTokenExchange(unlockedTokensInternal(msg.sender));
}
function requestTokenExchange(uint _tokens) public {
require(isMigrationPhaseOpen);
require(_tokens > 0 && _tokens <= unlockedTokensInternal(msg.sender));
balances[msg.sender] = balances[msg.sender].sub(_tokens);
tokensIssuedTotal = tokensIssuedTotal.sub(_tokens);
emit Transfer(msg.sender, 0x0, _tokens);
emit TokenExchangeRequested(msg.sender, _tokens);
}
// ERC20 functions -------------------
/* Transfer out any accidentally sent ERC20 tokens */
function transferAnyERC20Token(address _token_address, uint _amount) public onlyOwner returns (bool success) {
return ERC20Interface(_token_address).transfer(owner, _amount);
}
/* Override "transfer" */
function transfer(address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(msg.sender));
return super.transfer(_to, _amount);
}
/* Override "transferFrom" */
function transferFrom(address _from, address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(_from));
return super.transferFrom(_from, _to, _amount);
}
/* Multiple token transfers from one address to save gas */
function transferMultiple(address[] _addresses, uint[] _amounts) external {
require(_addresses.length <= 100);
require(_addresses.length == _amounts.length);
// do the transfers
for (uint j; j < _addresses.length; j++) {
transfer(_addresses[j], _amounts[j]);
}
}
} | // ----------------------------------------------------------------------------
//
// WALL public token sale
//
// ---------------------------------------------------------------------------- | LineComment | buyTokens | function buyTokens() private {
require(isMain());
require(msg.value >= MINIMUM_CONTRIBUTION);
require(whitelist[msg.sender]);
uint tokens_available = TOKEN_MAIN_CAP.sub(tokensMain);
// adjust tokens_available on first day, if necessary
if (isMainFirstDay()) {
uint tokens_available_first_day = firstDayTokenLimit().sub(balancesMain[msg.sender]);
if (tokens_available_first_day < tokens_available) {
tokens_available = tokens_available_first_day;
}
}
require (tokens_available > 0);
uint tokens_requested = ethToTokens(msg.value);
uint tokens_issued = tokens_requested;
uint eth_contributed = msg.value;
uint eth_returned;
if (tokens_requested > tokens_available) {
tokens_issued = tokens_available;
eth_returned = tokensToEth(tokens_requested.sub(tokens_available));
eth_contributed = msg.value.sub(eth_returned);
}
balances[msg.sender] = balances[msg.sender].add(tokens_issued);
balancesMain[msg.sender] = balancesMain[msg.sender].add(tokens_issued);
tokensMain = tokensMain.add(tokens_issued);
tokensIssuedTotal = tokensIssuedTotal.add(tokens_issued);
ethContributed[msg.sender] = ethContributed[msg.sender].add(eth_contributed);
totalEthContributed = totalEthContributed.add(eth_contributed);
// ether transfers
if (eth_returned > 0) msg.sender.transfer(eth_returned);
wallet.transfer(eth_contributed);
// log
emit Transfer(0x0, msg.sender, tokens_issued);
emit RegisterContribution(msg.sender, tokens_issued, eth_contributed, eth_returned);
}
| // Main sale ------------------------------------------ | LineComment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
6384,
8191
]
} | 479 |
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | WALLToken | contract WALLToken is ERC20Token, Wallet, LockSlots, WALLIcoDates {
// Utility variable
uint constant E18 = 10**18;
// Basic token data
string public constant name = "Wall Street Decentral Token";
string public constant symbol = "WALL";
uint8 public constant decimals = 18;
// Token number of possible tokens in existance 3333333333
uint public constant MAX_TOTAL_TOKEN_SUPPLY = 3333333333 * E18;
// ICO parameters
// Opening ETH Rate: USD$1827.28
// Therefore, 1 ETH = 45682 WALL
uint public tokensPerEth = 45682;
// USD$2,000,000/1827.28 = 1094.523006 ether
// 1094.523006 ether/2551 addresses = 0.429056450 ether per address for the first 24 hours
// 65,999,999,988 MainNet Coins / 19.79999999838 = 3,333,333,333 Tokens Total Supply
uint public constant MINIMUM_CONTRIBUTION = 0.2 ether;
uint public constant MAXIMUM_FIRST_DAY_CONTRIBUTION = 0.429056450 ether;
uint public constant TOKEN_MAIN_CAP = 50000000 * E18;
bool public tokensTradeable;
// whitelisting
mapping(address => bool) public whitelist;
uint public numberWhitelisted;
// track main sale
uint public tokensMain;
mapping(address => uint) public balancesMain;
uint public totalEthContributed;
mapping(address => uint) public ethContributed;
// tracking tokens minted
uint public tokensMinted;
mapping(address => uint) public balancesMinted;
mapping(address => mapping(uint => uint)) public balancesMintedByType;
// migration variable
bool public isMigrationPhaseOpen;
// Events ---------------------------------------------
event UpdatedTokensPerEth(uint tokensPerEth);
event Whitelisted(address indexed account, uint countWhitelisted);
event TokensMinted(uint indexed mintType, address indexed account, uint tokens, uint term);
event RegisterContribution(address indexed account, uint tokensIssued, uint ethContributed, uint ethReturned);
event TokenExchangeRequested(address indexed account, uint tokens);
// Basic Functions ------------------------------------
constructor() public {}
function () public payable {
buyTokens();
}
// Information functions
function availableToMint() public view returns (uint) {
return MAX_TOTAL_TOKEN_SUPPLY.sub(TOKEN_MAIN_CAP).sub(tokensMinted);
}
function firstDayTokenLimit() public view returns (uint) {
return ethToTokens(MAXIMUM_FIRST_DAY_CONTRIBUTION);
}
function ethToTokens(uint _eth) public view returns (uint tokens) {
tokens = _eth.mul(tokensPerEth);
}
function tokensToEth(uint _tokens) public view returns (uint eth) {
eth = _tokens / tokensPerEth;
}
// Admin functions
function addToWhitelist(address _account) public onlyAdmin {
pWhitelist(_account);
}
function addToWhitelistMultiple(address[] _addresses) public onlyAdmin {
for (uint i; i < _addresses.length; i++) {
pWhitelist(_addresses[i]);
}
}
function pWhitelist(address _account) internal {
if (whitelist[_account]) return;
whitelist[_account] = true;
numberWhitelisted = numberWhitelisted.add(1);
emit Whitelisted(_account, numberWhitelisted);
}
// Owner functions ------------------------------------
function updateTokensPerEth(uint _tokens_per_eth) public onlyOwner {
require(now < dateMainStart);
tokensPerEth = _tokens_per_eth;
emit UpdatedTokensPerEth(tokensPerEth);
}
// Only owner can make tokens tradable at any time, or if the date is
// greater than the end of the mainsale date plus 20 weeks, allow
// any caller to make tokensTradeable.
function makeTradeable() public {
require(msg.sender == owner || now > dateMainEnd + 20 weeks);
tokensTradeable = true;
}
function openMigrationPhase() public onlyOwner {
require(now > dateMainEnd);
isMigrationPhaseOpen = true;
}
// Token minting --------------------------------------
function mintTokens(uint _mint_type, address _account, uint _tokens) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, 0);
}
function mintTokensMultiple(uint _mint_type, address[] _accounts, uint[] _tokens) public onlyOwner {
require(_accounts.length == _tokens.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], 0);
}
}
function mintTokensLocked(uint _mint_type, address _account, uint _tokens, uint _term) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, _term);
}
function mintTokensLockedMultiple(uint _mint_type, address[] _accounts, uint[] _tokens, uint[] _terms) public onlyOwner {
require(_accounts.length == _tokens.length);
require(_accounts.length == _terms.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], _terms[i]);
}
}
function pMintTokens(uint _mint_type, address _account, uint _tokens, uint _term) private {
require(whitelist[_account]);
require(_account != 0x0);
require(_tokens > 0);
require(_tokens <= availableToMint(), "not enough tokens available to mint");
require(_term == 0 || _term > now, "either without lock term, or lock term must be in the future");
// register locked tokens (will throw if no slot is found)
if (_term > 0) registerLockedTokens(_account, _tokens, _term);
// update
balances[_account] = balances[_account].add(_tokens);
balancesMinted[_account] = balancesMinted[_account].add(_tokens);
balancesMintedByType[_account][_mint_type] = balancesMintedByType[_account][_mint_type].add(_tokens);
tokensMinted = tokensMinted.add(_tokens);
tokensIssuedTotal = tokensIssuedTotal.add(_tokens);
// log event
emit Transfer(0x0, _account, _tokens);
emit TokensMinted(_mint_type, _account, _tokens, _term);
}
// Main sale ------------------------------------------
function buyTokens() private {
require(isMain());
require(msg.value >= MINIMUM_CONTRIBUTION);
require(whitelist[msg.sender]);
uint tokens_available = TOKEN_MAIN_CAP.sub(tokensMain);
// adjust tokens_available on first day, if necessary
if (isMainFirstDay()) {
uint tokens_available_first_day = firstDayTokenLimit().sub(balancesMain[msg.sender]);
if (tokens_available_first_day < tokens_available) {
tokens_available = tokens_available_first_day;
}
}
require (tokens_available > 0);
uint tokens_requested = ethToTokens(msg.value);
uint tokens_issued = tokens_requested;
uint eth_contributed = msg.value;
uint eth_returned;
if (tokens_requested > tokens_available) {
tokens_issued = tokens_available;
eth_returned = tokensToEth(tokens_requested.sub(tokens_available));
eth_contributed = msg.value.sub(eth_returned);
}
balances[msg.sender] = balances[msg.sender].add(tokens_issued);
balancesMain[msg.sender] = balancesMain[msg.sender].add(tokens_issued);
tokensMain = tokensMain.add(tokens_issued);
tokensIssuedTotal = tokensIssuedTotal.add(tokens_issued);
ethContributed[msg.sender] = ethContributed[msg.sender].add(eth_contributed);
totalEthContributed = totalEthContributed.add(eth_contributed);
// ether transfers
if (eth_returned > 0) msg.sender.transfer(eth_returned);
wallet.transfer(eth_contributed);
// log
emit Transfer(0x0, msg.sender, tokens_issued);
emit RegisterContribution(msg.sender, tokens_issued, eth_contributed, eth_returned);
}
// Token exchange / migration to new platform ---------
function requestTokenExchangeMax() public {
requestTokenExchange(unlockedTokensInternal(msg.sender));
}
function requestTokenExchange(uint _tokens) public {
require(isMigrationPhaseOpen);
require(_tokens > 0 && _tokens <= unlockedTokensInternal(msg.sender));
balances[msg.sender] = balances[msg.sender].sub(_tokens);
tokensIssuedTotal = tokensIssuedTotal.sub(_tokens);
emit Transfer(msg.sender, 0x0, _tokens);
emit TokenExchangeRequested(msg.sender, _tokens);
}
// ERC20 functions -------------------
/* Transfer out any accidentally sent ERC20 tokens */
function transferAnyERC20Token(address _token_address, uint _amount) public onlyOwner returns (bool success) {
return ERC20Interface(_token_address).transfer(owner, _amount);
}
/* Override "transfer" */
function transfer(address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(msg.sender));
return super.transfer(_to, _amount);
}
/* Override "transferFrom" */
function transferFrom(address _from, address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(_from));
return super.transferFrom(_from, _to, _amount);
}
/* Multiple token transfers from one address to save gas */
function transferMultiple(address[] _addresses, uint[] _amounts) external {
require(_addresses.length <= 100);
require(_addresses.length == _amounts.length);
// do the transfers
for (uint j; j < _addresses.length; j++) {
transfer(_addresses[j], _amounts[j]);
}
}
} | // ----------------------------------------------------------------------------
//
// WALL public token sale
//
// ---------------------------------------------------------------------------- | LineComment | requestTokenExchangeMax | function requestTokenExchangeMax() public {
requestTokenExchange(unlockedTokensInternal(msg.sender));
}
| // Token exchange / migration to new platform --------- | LineComment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
8257,
8379
]
} | 480 |
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | WALLToken | contract WALLToken is ERC20Token, Wallet, LockSlots, WALLIcoDates {
// Utility variable
uint constant E18 = 10**18;
// Basic token data
string public constant name = "Wall Street Decentral Token";
string public constant symbol = "WALL";
uint8 public constant decimals = 18;
// Token number of possible tokens in existance 3333333333
uint public constant MAX_TOTAL_TOKEN_SUPPLY = 3333333333 * E18;
// ICO parameters
// Opening ETH Rate: USD$1827.28
// Therefore, 1 ETH = 45682 WALL
uint public tokensPerEth = 45682;
// USD$2,000,000/1827.28 = 1094.523006 ether
// 1094.523006 ether/2551 addresses = 0.429056450 ether per address for the first 24 hours
// 65,999,999,988 MainNet Coins / 19.79999999838 = 3,333,333,333 Tokens Total Supply
uint public constant MINIMUM_CONTRIBUTION = 0.2 ether;
uint public constant MAXIMUM_FIRST_DAY_CONTRIBUTION = 0.429056450 ether;
uint public constant TOKEN_MAIN_CAP = 50000000 * E18;
bool public tokensTradeable;
// whitelisting
mapping(address => bool) public whitelist;
uint public numberWhitelisted;
// track main sale
uint public tokensMain;
mapping(address => uint) public balancesMain;
uint public totalEthContributed;
mapping(address => uint) public ethContributed;
// tracking tokens minted
uint public tokensMinted;
mapping(address => uint) public balancesMinted;
mapping(address => mapping(uint => uint)) public balancesMintedByType;
// migration variable
bool public isMigrationPhaseOpen;
// Events ---------------------------------------------
event UpdatedTokensPerEth(uint tokensPerEth);
event Whitelisted(address indexed account, uint countWhitelisted);
event TokensMinted(uint indexed mintType, address indexed account, uint tokens, uint term);
event RegisterContribution(address indexed account, uint tokensIssued, uint ethContributed, uint ethReturned);
event TokenExchangeRequested(address indexed account, uint tokens);
// Basic Functions ------------------------------------
constructor() public {}
function () public payable {
buyTokens();
}
// Information functions
function availableToMint() public view returns (uint) {
return MAX_TOTAL_TOKEN_SUPPLY.sub(TOKEN_MAIN_CAP).sub(tokensMinted);
}
function firstDayTokenLimit() public view returns (uint) {
return ethToTokens(MAXIMUM_FIRST_DAY_CONTRIBUTION);
}
function ethToTokens(uint _eth) public view returns (uint tokens) {
tokens = _eth.mul(tokensPerEth);
}
function tokensToEth(uint _tokens) public view returns (uint eth) {
eth = _tokens / tokensPerEth;
}
// Admin functions
function addToWhitelist(address _account) public onlyAdmin {
pWhitelist(_account);
}
function addToWhitelistMultiple(address[] _addresses) public onlyAdmin {
for (uint i; i < _addresses.length; i++) {
pWhitelist(_addresses[i]);
}
}
function pWhitelist(address _account) internal {
if (whitelist[_account]) return;
whitelist[_account] = true;
numberWhitelisted = numberWhitelisted.add(1);
emit Whitelisted(_account, numberWhitelisted);
}
// Owner functions ------------------------------------
function updateTokensPerEth(uint _tokens_per_eth) public onlyOwner {
require(now < dateMainStart);
tokensPerEth = _tokens_per_eth;
emit UpdatedTokensPerEth(tokensPerEth);
}
// Only owner can make tokens tradable at any time, or if the date is
// greater than the end of the mainsale date plus 20 weeks, allow
// any caller to make tokensTradeable.
function makeTradeable() public {
require(msg.sender == owner || now > dateMainEnd + 20 weeks);
tokensTradeable = true;
}
function openMigrationPhase() public onlyOwner {
require(now > dateMainEnd);
isMigrationPhaseOpen = true;
}
// Token minting --------------------------------------
function mintTokens(uint _mint_type, address _account, uint _tokens) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, 0);
}
function mintTokensMultiple(uint _mint_type, address[] _accounts, uint[] _tokens) public onlyOwner {
require(_accounts.length == _tokens.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], 0);
}
}
function mintTokensLocked(uint _mint_type, address _account, uint _tokens, uint _term) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, _term);
}
function mintTokensLockedMultiple(uint _mint_type, address[] _accounts, uint[] _tokens, uint[] _terms) public onlyOwner {
require(_accounts.length == _tokens.length);
require(_accounts.length == _terms.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], _terms[i]);
}
}
function pMintTokens(uint _mint_type, address _account, uint _tokens, uint _term) private {
require(whitelist[_account]);
require(_account != 0x0);
require(_tokens > 0);
require(_tokens <= availableToMint(), "not enough tokens available to mint");
require(_term == 0 || _term > now, "either without lock term, or lock term must be in the future");
// register locked tokens (will throw if no slot is found)
if (_term > 0) registerLockedTokens(_account, _tokens, _term);
// update
balances[_account] = balances[_account].add(_tokens);
balancesMinted[_account] = balancesMinted[_account].add(_tokens);
balancesMintedByType[_account][_mint_type] = balancesMintedByType[_account][_mint_type].add(_tokens);
tokensMinted = tokensMinted.add(_tokens);
tokensIssuedTotal = tokensIssuedTotal.add(_tokens);
// log event
emit Transfer(0x0, _account, _tokens);
emit TokensMinted(_mint_type, _account, _tokens, _term);
}
// Main sale ------------------------------------------
function buyTokens() private {
require(isMain());
require(msg.value >= MINIMUM_CONTRIBUTION);
require(whitelist[msg.sender]);
uint tokens_available = TOKEN_MAIN_CAP.sub(tokensMain);
// adjust tokens_available on first day, if necessary
if (isMainFirstDay()) {
uint tokens_available_first_day = firstDayTokenLimit().sub(balancesMain[msg.sender]);
if (tokens_available_first_day < tokens_available) {
tokens_available = tokens_available_first_day;
}
}
require (tokens_available > 0);
uint tokens_requested = ethToTokens(msg.value);
uint tokens_issued = tokens_requested;
uint eth_contributed = msg.value;
uint eth_returned;
if (tokens_requested > tokens_available) {
tokens_issued = tokens_available;
eth_returned = tokensToEth(tokens_requested.sub(tokens_available));
eth_contributed = msg.value.sub(eth_returned);
}
balances[msg.sender] = balances[msg.sender].add(tokens_issued);
balancesMain[msg.sender] = balancesMain[msg.sender].add(tokens_issued);
tokensMain = tokensMain.add(tokens_issued);
tokensIssuedTotal = tokensIssuedTotal.add(tokens_issued);
ethContributed[msg.sender] = ethContributed[msg.sender].add(eth_contributed);
totalEthContributed = totalEthContributed.add(eth_contributed);
// ether transfers
if (eth_returned > 0) msg.sender.transfer(eth_returned);
wallet.transfer(eth_contributed);
// log
emit Transfer(0x0, msg.sender, tokens_issued);
emit RegisterContribution(msg.sender, tokens_issued, eth_contributed, eth_returned);
}
// Token exchange / migration to new platform ---------
function requestTokenExchangeMax() public {
requestTokenExchange(unlockedTokensInternal(msg.sender));
}
function requestTokenExchange(uint _tokens) public {
require(isMigrationPhaseOpen);
require(_tokens > 0 && _tokens <= unlockedTokensInternal(msg.sender));
balances[msg.sender] = balances[msg.sender].sub(_tokens);
tokensIssuedTotal = tokensIssuedTotal.sub(_tokens);
emit Transfer(msg.sender, 0x0, _tokens);
emit TokenExchangeRequested(msg.sender, _tokens);
}
// ERC20 functions -------------------
/* Transfer out any accidentally sent ERC20 tokens */
function transferAnyERC20Token(address _token_address, uint _amount) public onlyOwner returns (bool success) {
return ERC20Interface(_token_address).transfer(owner, _amount);
}
/* Override "transfer" */
function transfer(address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(msg.sender));
return super.transfer(_to, _amount);
}
/* Override "transferFrom" */
function transferFrom(address _from, address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(_from));
return super.transferFrom(_from, _to, _amount);
}
/* Multiple token transfers from one address to save gas */
function transferMultiple(address[] _addresses, uint[] _amounts) external {
require(_addresses.length <= 100);
require(_addresses.length == _amounts.length);
// do the transfers
for (uint j; j < _addresses.length; j++) {
transfer(_addresses[j], _amounts[j]);
}
}
} | // ----------------------------------------------------------------------------
//
// WALL public token sale
//
// ---------------------------------------------------------------------------- | LineComment | transferAnyERC20Token | function transferAnyERC20Token(address _token_address, uint _amount) public onlyOwner returns (bool success) {
return ERC20Interface(_token_address).transfer(owner, _amount);
}
| /* Transfer out any accidentally sent ERC20 tokens */ | Comment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
8913,
9108
]
} | 481 |
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | WALLToken | contract WALLToken is ERC20Token, Wallet, LockSlots, WALLIcoDates {
// Utility variable
uint constant E18 = 10**18;
// Basic token data
string public constant name = "Wall Street Decentral Token";
string public constant symbol = "WALL";
uint8 public constant decimals = 18;
// Token number of possible tokens in existance 3333333333
uint public constant MAX_TOTAL_TOKEN_SUPPLY = 3333333333 * E18;
// ICO parameters
// Opening ETH Rate: USD$1827.28
// Therefore, 1 ETH = 45682 WALL
uint public tokensPerEth = 45682;
// USD$2,000,000/1827.28 = 1094.523006 ether
// 1094.523006 ether/2551 addresses = 0.429056450 ether per address for the first 24 hours
// 65,999,999,988 MainNet Coins / 19.79999999838 = 3,333,333,333 Tokens Total Supply
uint public constant MINIMUM_CONTRIBUTION = 0.2 ether;
uint public constant MAXIMUM_FIRST_DAY_CONTRIBUTION = 0.429056450 ether;
uint public constant TOKEN_MAIN_CAP = 50000000 * E18;
bool public tokensTradeable;
// whitelisting
mapping(address => bool) public whitelist;
uint public numberWhitelisted;
// track main sale
uint public tokensMain;
mapping(address => uint) public balancesMain;
uint public totalEthContributed;
mapping(address => uint) public ethContributed;
// tracking tokens minted
uint public tokensMinted;
mapping(address => uint) public balancesMinted;
mapping(address => mapping(uint => uint)) public balancesMintedByType;
// migration variable
bool public isMigrationPhaseOpen;
// Events ---------------------------------------------
event UpdatedTokensPerEth(uint tokensPerEth);
event Whitelisted(address indexed account, uint countWhitelisted);
event TokensMinted(uint indexed mintType, address indexed account, uint tokens, uint term);
event RegisterContribution(address indexed account, uint tokensIssued, uint ethContributed, uint ethReturned);
event TokenExchangeRequested(address indexed account, uint tokens);
// Basic Functions ------------------------------------
constructor() public {}
function () public payable {
buyTokens();
}
// Information functions
function availableToMint() public view returns (uint) {
return MAX_TOTAL_TOKEN_SUPPLY.sub(TOKEN_MAIN_CAP).sub(tokensMinted);
}
function firstDayTokenLimit() public view returns (uint) {
return ethToTokens(MAXIMUM_FIRST_DAY_CONTRIBUTION);
}
function ethToTokens(uint _eth) public view returns (uint tokens) {
tokens = _eth.mul(tokensPerEth);
}
function tokensToEth(uint _tokens) public view returns (uint eth) {
eth = _tokens / tokensPerEth;
}
// Admin functions
function addToWhitelist(address _account) public onlyAdmin {
pWhitelist(_account);
}
function addToWhitelistMultiple(address[] _addresses) public onlyAdmin {
for (uint i; i < _addresses.length; i++) {
pWhitelist(_addresses[i]);
}
}
function pWhitelist(address _account) internal {
if (whitelist[_account]) return;
whitelist[_account] = true;
numberWhitelisted = numberWhitelisted.add(1);
emit Whitelisted(_account, numberWhitelisted);
}
// Owner functions ------------------------------------
function updateTokensPerEth(uint _tokens_per_eth) public onlyOwner {
require(now < dateMainStart);
tokensPerEth = _tokens_per_eth;
emit UpdatedTokensPerEth(tokensPerEth);
}
// Only owner can make tokens tradable at any time, or if the date is
// greater than the end of the mainsale date plus 20 weeks, allow
// any caller to make tokensTradeable.
function makeTradeable() public {
require(msg.sender == owner || now > dateMainEnd + 20 weeks);
tokensTradeable = true;
}
function openMigrationPhase() public onlyOwner {
require(now > dateMainEnd);
isMigrationPhaseOpen = true;
}
// Token minting --------------------------------------
function mintTokens(uint _mint_type, address _account, uint _tokens) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, 0);
}
function mintTokensMultiple(uint _mint_type, address[] _accounts, uint[] _tokens) public onlyOwner {
require(_accounts.length == _tokens.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], 0);
}
}
function mintTokensLocked(uint _mint_type, address _account, uint _tokens, uint _term) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, _term);
}
function mintTokensLockedMultiple(uint _mint_type, address[] _accounts, uint[] _tokens, uint[] _terms) public onlyOwner {
require(_accounts.length == _tokens.length);
require(_accounts.length == _terms.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], _terms[i]);
}
}
function pMintTokens(uint _mint_type, address _account, uint _tokens, uint _term) private {
require(whitelist[_account]);
require(_account != 0x0);
require(_tokens > 0);
require(_tokens <= availableToMint(), "not enough tokens available to mint");
require(_term == 0 || _term > now, "either without lock term, or lock term must be in the future");
// register locked tokens (will throw if no slot is found)
if (_term > 0) registerLockedTokens(_account, _tokens, _term);
// update
balances[_account] = balances[_account].add(_tokens);
balancesMinted[_account] = balancesMinted[_account].add(_tokens);
balancesMintedByType[_account][_mint_type] = balancesMintedByType[_account][_mint_type].add(_tokens);
tokensMinted = tokensMinted.add(_tokens);
tokensIssuedTotal = tokensIssuedTotal.add(_tokens);
// log event
emit Transfer(0x0, _account, _tokens);
emit TokensMinted(_mint_type, _account, _tokens, _term);
}
// Main sale ------------------------------------------
function buyTokens() private {
require(isMain());
require(msg.value >= MINIMUM_CONTRIBUTION);
require(whitelist[msg.sender]);
uint tokens_available = TOKEN_MAIN_CAP.sub(tokensMain);
// adjust tokens_available on first day, if necessary
if (isMainFirstDay()) {
uint tokens_available_first_day = firstDayTokenLimit().sub(balancesMain[msg.sender]);
if (tokens_available_first_day < tokens_available) {
tokens_available = tokens_available_first_day;
}
}
require (tokens_available > 0);
uint tokens_requested = ethToTokens(msg.value);
uint tokens_issued = tokens_requested;
uint eth_contributed = msg.value;
uint eth_returned;
if (tokens_requested > tokens_available) {
tokens_issued = tokens_available;
eth_returned = tokensToEth(tokens_requested.sub(tokens_available));
eth_contributed = msg.value.sub(eth_returned);
}
balances[msg.sender] = balances[msg.sender].add(tokens_issued);
balancesMain[msg.sender] = balancesMain[msg.sender].add(tokens_issued);
tokensMain = tokensMain.add(tokens_issued);
tokensIssuedTotal = tokensIssuedTotal.add(tokens_issued);
ethContributed[msg.sender] = ethContributed[msg.sender].add(eth_contributed);
totalEthContributed = totalEthContributed.add(eth_contributed);
// ether transfers
if (eth_returned > 0) msg.sender.transfer(eth_returned);
wallet.transfer(eth_contributed);
// log
emit Transfer(0x0, msg.sender, tokens_issued);
emit RegisterContribution(msg.sender, tokens_issued, eth_contributed, eth_returned);
}
// Token exchange / migration to new platform ---------
function requestTokenExchangeMax() public {
requestTokenExchange(unlockedTokensInternal(msg.sender));
}
function requestTokenExchange(uint _tokens) public {
require(isMigrationPhaseOpen);
require(_tokens > 0 && _tokens <= unlockedTokensInternal(msg.sender));
balances[msg.sender] = balances[msg.sender].sub(_tokens);
tokensIssuedTotal = tokensIssuedTotal.sub(_tokens);
emit Transfer(msg.sender, 0x0, _tokens);
emit TokenExchangeRequested(msg.sender, _tokens);
}
// ERC20 functions -------------------
/* Transfer out any accidentally sent ERC20 tokens */
function transferAnyERC20Token(address _token_address, uint _amount) public onlyOwner returns (bool success) {
return ERC20Interface(_token_address).transfer(owner, _amount);
}
/* Override "transfer" */
function transfer(address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(msg.sender));
return super.transfer(_to, _amount);
}
/* Override "transferFrom" */
function transferFrom(address _from, address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(_from));
return super.transferFrom(_from, _to, _amount);
}
/* Multiple token transfers from one address to save gas */
function transferMultiple(address[] _addresses, uint[] _amounts) external {
require(_addresses.length <= 100);
require(_addresses.length == _amounts.length);
// do the transfers
for (uint j; j < _addresses.length; j++) {
transfer(_addresses[j], _amounts[j]);
}
}
} | // ----------------------------------------------------------------------------
//
// WALL public token sale
//
// ---------------------------------------------------------------------------- | LineComment | transfer | function transfer(address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(msg.sender));
return super.transfer(_to, _amount);
}
| /* Override "transfer" */ | Comment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
9144,
9378
]
} | 482 |
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | WALLToken | contract WALLToken is ERC20Token, Wallet, LockSlots, WALLIcoDates {
// Utility variable
uint constant E18 = 10**18;
// Basic token data
string public constant name = "Wall Street Decentral Token";
string public constant symbol = "WALL";
uint8 public constant decimals = 18;
// Token number of possible tokens in existance 3333333333
uint public constant MAX_TOTAL_TOKEN_SUPPLY = 3333333333 * E18;
// ICO parameters
// Opening ETH Rate: USD$1827.28
// Therefore, 1 ETH = 45682 WALL
uint public tokensPerEth = 45682;
// USD$2,000,000/1827.28 = 1094.523006 ether
// 1094.523006 ether/2551 addresses = 0.429056450 ether per address for the first 24 hours
// 65,999,999,988 MainNet Coins / 19.79999999838 = 3,333,333,333 Tokens Total Supply
uint public constant MINIMUM_CONTRIBUTION = 0.2 ether;
uint public constant MAXIMUM_FIRST_DAY_CONTRIBUTION = 0.429056450 ether;
uint public constant TOKEN_MAIN_CAP = 50000000 * E18;
bool public tokensTradeable;
// whitelisting
mapping(address => bool) public whitelist;
uint public numberWhitelisted;
// track main sale
uint public tokensMain;
mapping(address => uint) public balancesMain;
uint public totalEthContributed;
mapping(address => uint) public ethContributed;
// tracking tokens minted
uint public tokensMinted;
mapping(address => uint) public balancesMinted;
mapping(address => mapping(uint => uint)) public balancesMintedByType;
// migration variable
bool public isMigrationPhaseOpen;
// Events ---------------------------------------------
event UpdatedTokensPerEth(uint tokensPerEth);
event Whitelisted(address indexed account, uint countWhitelisted);
event TokensMinted(uint indexed mintType, address indexed account, uint tokens, uint term);
event RegisterContribution(address indexed account, uint tokensIssued, uint ethContributed, uint ethReturned);
event TokenExchangeRequested(address indexed account, uint tokens);
// Basic Functions ------------------------------------
constructor() public {}
function () public payable {
buyTokens();
}
// Information functions
function availableToMint() public view returns (uint) {
return MAX_TOTAL_TOKEN_SUPPLY.sub(TOKEN_MAIN_CAP).sub(tokensMinted);
}
function firstDayTokenLimit() public view returns (uint) {
return ethToTokens(MAXIMUM_FIRST_DAY_CONTRIBUTION);
}
function ethToTokens(uint _eth) public view returns (uint tokens) {
tokens = _eth.mul(tokensPerEth);
}
function tokensToEth(uint _tokens) public view returns (uint eth) {
eth = _tokens / tokensPerEth;
}
// Admin functions
function addToWhitelist(address _account) public onlyAdmin {
pWhitelist(_account);
}
function addToWhitelistMultiple(address[] _addresses) public onlyAdmin {
for (uint i; i < _addresses.length; i++) {
pWhitelist(_addresses[i]);
}
}
function pWhitelist(address _account) internal {
if (whitelist[_account]) return;
whitelist[_account] = true;
numberWhitelisted = numberWhitelisted.add(1);
emit Whitelisted(_account, numberWhitelisted);
}
// Owner functions ------------------------------------
function updateTokensPerEth(uint _tokens_per_eth) public onlyOwner {
require(now < dateMainStart);
tokensPerEth = _tokens_per_eth;
emit UpdatedTokensPerEth(tokensPerEth);
}
// Only owner can make tokens tradable at any time, or if the date is
// greater than the end of the mainsale date plus 20 weeks, allow
// any caller to make tokensTradeable.
function makeTradeable() public {
require(msg.sender == owner || now > dateMainEnd + 20 weeks);
tokensTradeable = true;
}
function openMigrationPhase() public onlyOwner {
require(now > dateMainEnd);
isMigrationPhaseOpen = true;
}
// Token minting --------------------------------------
function mintTokens(uint _mint_type, address _account, uint _tokens) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, 0);
}
function mintTokensMultiple(uint _mint_type, address[] _accounts, uint[] _tokens) public onlyOwner {
require(_accounts.length == _tokens.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], 0);
}
}
function mintTokensLocked(uint _mint_type, address _account, uint _tokens, uint _term) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, _term);
}
function mintTokensLockedMultiple(uint _mint_type, address[] _accounts, uint[] _tokens, uint[] _terms) public onlyOwner {
require(_accounts.length == _tokens.length);
require(_accounts.length == _terms.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], _terms[i]);
}
}
function pMintTokens(uint _mint_type, address _account, uint _tokens, uint _term) private {
require(whitelist[_account]);
require(_account != 0x0);
require(_tokens > 0);
require(_tokens <= availableToMint(), "not enough tokens available to mint");
require(_term == 0 || _term > now, "either without lock term, or lock term must be in the future");
// register locked tokens (will throw if no slot is found)
if (_term > 0) registerLockedTokens(_account, _tokens, _term);
// update
balances[_account] = balances[_account].add(_tokens);
balancesMinted[_account] = balancesMinted[_account].add(_tokens);
balancesMintedByType[_account][_mint_type] = balancesMintedByType[_account][_mint_type].add(_tokens);
tokensMinted = tokensMinted.add(_tokens);
tokensIssuedTotal = tokensIssuedTotal.add(_tokens);
// log event
emit Transfer(0x0, _account, _tokens);
emit TokensMinted(_mint_type, _account, _tokens, _term);
}
// Main sale ------------------------------------------
function buyTokens() private {
require(isMain());
require(msg.value >= MINIMUM_CONTRIBUTION);
require(whitelist[msg.sender]);
uint tokens_available = TOKEN_MAIN_CAP.sub(tokensMain);
// adjust tokens_available on first day, if necessary
if (isMainFirstDay()) {
uint tokens_available_first_day = firstDayTokenLimit().sub(balancesMain[msg.sender]);
if (tokens_available_first_day < tokens_available) {
tokens_available = tokens_available_first_day;
}
}
require (tokens_available > 0);
uint tokens_requested = ethToTokens(msg.value);
uint tokens_issued = tokens_requested;
uint eth_contributed = msg.value;
uint eth_returned;
if (tokens_requested > tokens_available) {
tokens_issued = tokens_available;
eth_returned = tokensToEth(tokens_requested.sub(tokens_available));
eth_contributed = msg.value.sub(eth_returned);
}
balances[msg.sender] = balances[msg.sender].add(tokens_issued);
balancesMain[msg.sender] = balancesMain[msg.sender].add(tokens_issued);
tokensMain = tokensMain.add(tokens_issued);
tokensIssuedTotal = tokensIssuedTotal.add(tokens_issued);
ethContributed[msg.sender] = ethContributed[msg.sender].add(eth_contributed);
totalEthContributed = totalEthContributed.add(eth_contributed);
// ether transfers
if (eth_returned > 0) msg.sender.transfer(eth_returned);
wallet.transfer(eth_contributed);
// log
emit Transfer(0x0, msg.sender, tokens_issued);
emit RegisterContribution(msg.sender, tokens_issued, eth_contributed, eth_returned);
}
// Token exchange / migration to new platform ---------
function requestTokenExchangeMax() public {
requestTokenExchange(unlockedTokensInternal(msg.sender));
}
function requestTokenExchange(uint _tokens) public {
require(isMigrationPhaseOpen);
require(_tokens > 0 && _tokens <= unlockedTokensInternal(msg.sender));
balances[msg.sender] = balances[msg.sender].sub(_tokens);
tokensIssuedTotal = tokensIssuedTotal.sub(_tokens);
emit Transfer(msg.sender, 0x0, _tokens);
emit TokenExchangeRequested(msg.sender, _tokens);
}
// ERC20 functions -------------------
/* Transfer out any accidentally sent ERC20 tokens */
function transferAnyERC20Token(address _token_address, uint _amount) public onlyOwner returns (bool success) {
return ERC20Interface(_token_address).transfer(owner, _amount);
}
/* Override "transfer" */
function transfer(address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(msg.sender));
return super.transfer(_to, _amount);
}
/* Override "transferFrom" */
function transferFrom(address _from, address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(_from));
return super.transferFrom(_from, _to, _amount);
}
/* Multiple token transfers from one address to save gas */
function transferMultiple(address[] _addresses, uint[] _amounts) external {
require(_addresses.length <= 100);
require(_addresses.length == _amounts.length);
// do the transfers
for (uint j; j < _addresses.length; j++) {
transfer(_addresses[j], _amounts[j]);
}
}
} | // ----------------------------------------------------------------------------
//
// WALL public token sale
//
// ---------------------------------------------------------------------------- | LineComment | transferFrom | function transferFrom(address _from, address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(_from));
return super.transferFrom(_from, _to, _amount);
}
| /* Override "transferFrom" */ | Comment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
9418,
9677
]
} | 483 |
WALLToken | WALLToken.sol | 0x02b6361bbec213bcc34756bbd2877831d92a6c84 | Solidity | WALLToken | contract WALLToken is ERC20Token, Wallet, LockSlots, WALLIcoDates {
// Utility variable
uint constant E18 = 10**18;
// Basic token data
string public constant name = "Wall Street Decentral Token";
string public constant symbol = "WALL";
uint8 public constant decimals = 18;
// Token number of possible tokens in existance 3333333333
uint public constant MAX_TOTAL_TOKEN_SUPPLY = 3333333333 * E18;
// ICO parameters
// Opening ETH Rate: USD$1827.28
// Therefore, 1 ETH = 45682 WALL
uint public tokensPerEth = 45682;
// USD$2,000,000/1827.28 = 1094.523006 ether
// 1094.523006 ether/2551 addresses = 0.429056450 ether per address for the first 24 hours
// 65,999,999,988 MainNet Coins / 19.79999999838 = 3,333,333,333 Tokens Total Supply
uint public constant MINIMUM_CONTRIBUTION = 0.2 ether;
uint public constant MAXIMUM_FIRST_DAY_CONTRIBUTION = 0.429056450 ether;
uint public constant TOKEN_MAIN_CAP = 50000000 * E18;
bool public tokensTradeable;
// whitelisting
mapping(address => bool) public whitelist;
uint public numberWhitelisted;
// track main sale
uint public tokensMain;
mapping(address => uint) public balancesMain;
uint public totalEthContributed;
mapping(address => uint) public ethContributed;
// tracking tokens minted
uint public tokensMinted;
mapping(address => uint) public balancesMinted;
mapping(address => mapping(uint => uint)) public balancesMintedByType;
// migration variable
bool public isMigrationPhaseOpen;
// Events ---------------------------------------------
event UpdatedTokensPerEth(uint tokensPerEth);
event Whitelisted(address indexed account, uint countWhitelisted);
event TokensMinted(uint indexed mintType, address indexed account, uint tokens, uint term);
event RegisterContribution(address indexed account, uint tokensIssued, uint ethContributed, uint ethReturned);
event TokenExchangeRequested(address indexed account, uint tokens);
// Basic Functions ------------------------------------
constructor() public {}
function () public payable {
buyTokens();
}
// Information functions
function availableToMint() public view returns (uint) {
return MAX_TOTAL_TOKEN_SUPPLY.sub(TOKEN_MAIN_CAP).sub(tokensMinted);
}
function firstDayTokenLimit() public view returns (uint) {
return ethToTokens(MAXIMUM_FIRST_DAY_CONTRIBUTION);
}
function ethToTokens(uint _eth) public view returns (uint tokens) {
tokens = _eth.mul(tokensPerEth);
}
function tokensToEth(uint _tokens) public view returns (uint eth) {
eth = _tokens / tokensPerEth;
}
// Admin functions
function addToWhitelist(address _account) public onlyAdmin {
pWhitelist(_account);
}
function addToWhitelistMultiple(address[] _addresses) public onlyAdmin {
for (uint i; i < _addresses.length; i++) {
pWhitelist(_addresses[i]);
}
}
function pWhitelist(address _account) internal {
if (whitelist[_account]) return;
whitelist[_account] = true;
numberWhitelisted = numberWhitelisted.add(1);
emit Whitelisted(_account, numberWhitelisted);
}
// Owner functions ------------------------------------
function updateTokensPerEth(uint _tokens_per_eth) public onlyOwner {
require(now < dateMainStart);
tokensPerEth = _tokens_per_eth;
emit UpdatedTokensPerEth(tokensPerEth);
}
// Only owner can make tokens tradable at any time, or if the date is
// greater than the end of the mainsale date plus 20 weeks, allow
// any caller to make tokensTradeable.
function makeTradeable() public {
require(msg.sender == owner || now > dateMainEnd + 20 weeks);
tokensTradeable = true;
}
function openMigrationPhase() public onlyOwner {
require(now > dateMainEnd);
isMigrationPhaseOpen = true;
}
// Token minting --------------------------------------
function mintTokens(uint _mint_type, address _account, uint _tokens) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, 0);
}
function mintTokensMultiple(uint _mint_type, address[] _accounts, uint[] _tokens) public onlyOwner {
require(_accounts.length == _tokens.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], 0);
}
}
function mintTokensLocked(uint _mint_type, address _account, uint _tokens, uint _term) public onlyOwner {
pMintTokens(_mint_type, _account, _tokens, _term);
}
function mintTokensLockedMultiple(uint _mint_type, address[] _accounts, uint[] _tokens, uint[] _terms) public onlyOwner {
require(_accounts.length == _tokens.length);
require(_accounts.length == _terms.length);
for (uint i; i < _accounts.length; i++) {
pMintTokens(_mint_type, _accounts[i], _tokens[i], _terms[i]);
}
}
function pMintTokens(uint _mint_type, address _account, uint _tokens, uint _term) private {
require(whitelist[_account]);
require(_account != 0x0);
require(_tokens > 0);
require(_tokens <= availableToMint(), "not enough tokens available to mint");
require(_term == 0 || _term > now, "either without lock term, or lock term must be in the future");
// register locked tokens (will throw if no slot is found)
if (_term > 0) registerLockedTokens(_account, _tokens, _term);
// update
balances[_account] = balances[_account].add(_tokens);
balancesMinted[_account] = balancesMinted[_account].add(_tokens);
balancesMintedByType[_account][_mint_type] = balancesMintedByType[_account][_mint_type].add(_tokens);
tokensMinted = tokensMinted.add(_tokens);
tokensIssuedTotal = tokensIssuedTotal.add(_tokens);
// log event
emit Transfer(0x0, _account, _tokens);
emit TokensMinted(_mint_type, _account, _tokens, _term);
}
// Main sale ------------------------------------------
function buyTokens() private {
require(isMain());
require(msg.value >= MINIMUM_CONTRIBUTION);
require(whitelist[msg.sender]);
uint tokens_available = TOKEN_MAIN_CAP.sub(tokensMain);
// adjust tokens_available on first day, if necessary
if (isMainFirstDay()) {
uint tokens_available_first_day = firstDayTokenLimit().sub(balancesMain[msg.sender]);
if (tokens_available_first_day < tokens_available) {
tokens_available = tokens_available_first_day;
}
}
require (tokens_available > 0);
uint tokens_requested = ethToTokens(msg.value);
uint tokens_issued = tokens_requested;
uint eth_contributed = msg.value;
uint eth_returned;
if (tokens_requested > tokens_available) {
tokens_issued = tokens_available;
eth_returned = tokensToEth(tokens_requested.sub(tokens_available));
eth_contributed = msg.value.sub(eth_returned);
}
balances[msg.sender] = balances[msg.sender].add(tokens_issued);
balancesMain[msg.sender] = balancesMain[msg.sender].add(tokens_issued);
tokensMain = tokensMain.add(tokens_issued);
tokensIssuedTotal = tokensIssuedTotal.add(tokens_issued);
ethContributed[msg.sender] = ethContributed[msg.sender].add(eth_contributed);
totalEthContributed = totalEthContributed.add(eth_contributed);
// ether transfers
if (eth_returned > 0) msg.sender.transfer(eth_returned);
wallet.transfer(eth_contributed);
// log
emit Transfer(0x0, msg.sender, tokens_issued);
emit RegisterContribution(msg.sender, tokens_issued, eth_contributed, eth_returned);
}
// Token exchange / migration to new platform ---------
function requestTokenExchangeMax() public {
requestTokenExchange(unlockedTokensInternal(msg.sender));
}
function requestTokenExchange(uint _tokens) public {
require(isMigrationPhaseOpen);
require(_tokens > 0 && _tokens <= unlockedTokensInternal(msg.sender));
balances[msg.sender] = balances[msg.sender].sub(_tokens);
tokensIssuedTotal = tokensIssuedTotal.sub(_tokens);
emit Transfer(msg.sender, 0x0, _tokens);
emit TokenExchangeRequested(msg.sender, _tokens);
}
// ERC20 functions -------------------
/* Transfer out any accidentally sent ERC20 tokens */
function transferAnyERC20Token(address _token_address, uint _amount) public onlyOwner returns (bool success) {
return ERC20Interface(_token_address).transfer(owner, _amount);
}
/* Override "transfer" */
function transfer(address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(msg.sender));
return super.transfer(_to, _amount);
}
/* Override "transferFrom" */
function transferFrom(address _from, address _to, uint _amount) public returns (bool success) {
require(tokensTradeable);
require(_amount <= unlockedTokensInternal(_from));
return super.transferFrom(_from, _to, _amount);
}
/* Multiple token transfers from one address to save gas */
function transferMultiple(address[] _addresses, uint[] _amounts) external {
require(_addresses.length <= 100);
require(_addresses.length == _amounts.length);
// do the transfers
for (uint j; j < _addresses.length; j++) {
transfer(_addresses[j], _amounts[j]);
}
}
} | // ----------------------------------------------------------------------------
//
// WALL public token sale
//
// ---------------------------------------------------------------------------- | LineComment | transferMultiple | function transferMultiple(address[] _addresses, uint[] _amounts) external {
require(_addresses.length <= 100);
require(_addresses.length == _amounts.length);
// do the transfers
for (uint j; j < _addresses.length; j++) {
transfer(_addresses[j], _amounts[j]);
}
}
| /* Multiple token transfers from one address to save gas */ | Comment | v0.4.23+commit.124ca40d | None | bzzr://cf4e1a54ac982d46286798e77068beb9d6d9b34248c3bc96ef668b7eb7004ff3 | {
"func_code_index": [
9747,
10081
]
} | 484 |
TornadoCash_eth | contracts/MerkleTreeWithHistory.sol | 0xa160cdab225685da1d56aa342ad8841c3b53f291 | Solidity | MerkleTreeWithHistory | contract MerkleTreeWithHistory {
uint256 public constant FIELD_SIZE = 21888242871839275222246405745257275088548364400416034343698204186575808495617;
uint256 public constant ZERO_VALUE = 21663839004416932945382355908790599225266501822907911457504978515578255421292; // = keccak256("tornado") % FIELD_SIZE
uint32 public levels;
// the following variables are made public for easier testing and debugging and
// are not supposed to be accessed in regular code
bytes32[] public filledSubtrees;
bytes32[] public zeros;
uint32 public currentRootIndex = 0;
uint32 public nextIndex = 0;
uint32 public constant ROOT_HISTORY_SIZE = 100;
bytes32[ROOT_HISTORY_SIZE] public roots;
constructor(uint32 _treeLevels) public {
require(_treeLevels > 0, "_treeLevels should be greater than zero");
require(_treeLevels < 32, "_treeLevels should be less than 32");
levels = _treeLevels;
bytes32 currentZero = bytes32(ZERO_VALUE);
zeros.push(currentZero);
filledSubtrees.push(currentZero);
for (uint32 i = 1; i < levels; i++) {
currentZero = hashLeftRight(currentZero, currentZero);
zeros.push(currentZero);
filledSubtrees.push(currentZero);
}
roots[0] = hashLeftRight(currentZero, currentZero);
}
/**
@dev Hash 2 tree leaves, returns MiMC(_left, _right)
*/
function hashLeftRight(bytes32 _left, bytes32 _right) public pure returns (bytes32) {
require(uint256(_left) < FIELD_SIZE, "_left should be inside the field");
require(uint256(_right) < FIELD_SIZE, "_right should be inside the field");
uint256 R = uint256(_left);
uint256 C = 0;
(R, C) = Hasher.MiMCSponge(R, C);
R = addmod(R, uint256(_right), FIELD_SIZE);
(R, C) = Hasher.MiMCSponge(R, C);
return bytes32(R);
}
function _insert(bytes32 _leaf) internal returns(uint32 index) {
uint32 currentIndex = nextIndex;
require(currentIndex != uint32(2)**levels, "Merkle tree is full. No more leafs can be added");
nextIndex += 1;
bytes32 currentLevelHash = _leaf;
bytes32 left;
bytes32 right;
for (uint32 i = 0; i < levels; i++) {
if (currentIndex % 2 == 0) {
left = currentLevelHash;
right = zeros[i];
filledSubtrees[i] = currentLevelHash;
} else {
left = filledSubtrees[i];
right = currentLevelHash;
}
currentLevelHash = hashLeftRight(left, right);
currentIndex /= 2;
}
currentRootIndex = (currentRootIndex + 1) % ROOT_HISTORY_SIZE;
roots[currentRootIndex] = currentLevelHash;
return nextIndex - 1;
}
/**
@dev Whether the root is present in the root history
*/
function isKnownRoot(bytes32 _root) public view returns(bool) {
if (_root == 0) {
return false;
}
uint32 i = currentRootIndex;
do {
if (_root == roots[i]) {
return true;
}
if (i == 0) {
i = ROOT_HISTORY_SIZE;
}
i--;
} while (i != currentRootIndex);
return false;
}
/**
@dev Returns the last root
*/
function getLastRoot() public view returns(bytes32) {
return roots[currentRootIndex];
}
} | hashLeftRight | function hashLeftRight(bytes32 _left, bytes32 _right) public pure returns (bytes32) {
require(uint256(_left) < FIELD_SIZE, "_left should be inside the field");
require(uint256(_right) < FIELD_SIZE, "_right should be inside the field");
uint256 R = uint256(_left);
uint256 C = 0;
(R, C) = Hasher.MiMCSponge(R, C);
R = addmod(R, uint256(_right), FIELD_SIZE);
(R, C) = Hasher.MiMCSponge(R, C);
return bytes32(R);
}
| /**
@dev Hash 2 tree leaves, returns MiMC(_left, _right)
*/ | NatSpecMultiLine | v0.5.11+commit.c082d0b4 | None | bzzr://587549d2a38eba8d298e5df3a9c389827128193ddbe15c9ca5720461b16a92ac | {
"func_code_index": [
1366,
1823
]
} | 485 |
||
TornadoCash_eth | contracts/MerkleTreeWithHistory.sol | 0xa160cdab225685da1d56aa342ad8841c3b53f291 | Solidity | MerkleTreeWithHistory | contract MerkleTreeWithHistory {
uint256 public constant FIELD_SIZE = 21888242871839275222246405745257275088548364400416034343698204186575808495617;
uint256 public constant ZERO_VALUE = 21663839004416932945382355908790599225266501822907911457504978515578255421292; // = keccak256("tornado") % FIELD_SIZE
uint32 public levels;
// the following variables are made public for easier testing and debugging and
// are not supposed to be accessed in regular code
bytes32[] public filledSubtrees;
bytes32[] public zeros;
uint32 public currentRootIndex = 0;
uint32 public nextIndex = 0;
uint32 public constant ROOT_HISTORY_SIZE = 100;
bytes32[ROOT_HISTORY_SIZE] public roots;
constructor(uint32 _treeLevels) public {
require(_treeLevels > 0, "_treeLevels should be greater than zero");
require(_treeLevels < 32, "_treeLevels should be less than 32");
levels = _treeLevels;
bytes32 currentZero = bytes32(ZERO_VALUE);
zeros.push(currentZero);
filledSubtrees.push(currentZero);
for (uint32 i = 1; i < levels; i++) {
currentZero = hashLeftRight(currentZero, currentZero);
zeros.push(currentZero);
filledSubtrees.push(currentZero);
}
roots[0] = hashLeftRight(currentZero, currentZero);
}
/**
@dev Hash 2 tree leaves, returns MiMC(_left, _right)
*/
function hashLeftRight(bytes32 _left, bytes32 _right) public pure returns (bytes32) {
require(uint256(_left) < FIELD_SIZE, "_left should be inside the field");
require(uint256(_right) < FIELD_SIZE, "_right should be inside the field");
uint256 R = uint256(_left);
uint256 C = 0;
(R, C) = Hasher.MiMCSponge(R, C);
R = addmod(R, uint256(_right), FIELD_SIZE);
(R, C) = Hasher.MiMCSponge(R, C);
return bytes32(R);
}
function _insert(bytes32 _leaf) internal returns(uint32 index) {
uint32 currentIndex = nextIndex;
require(currentIndex != uint32(2)**levels, "Merkle tree is full. No more leafs can be added");
nextIndex += 1;
bytes32 currentLevelHash = _leaf;
bytes32 left;
bytes32 right;
for (uint32 i = 0; i < levels; i++) {
if (currentIndex % 2 == 0) {
left = currentLevelHash;
right = zeros[i];
filledSubtrees[i] = currentLevelHash;
} else {
left = filledSubtrees[i];
right = currentLevelHash;
}
currentLevelHash = hashLeftRight(left, right);
currentIndex /= 2;
}
currentRootIndex = (currentRootIndex + 1) % ROOT_HISTORY_SIZE;
roots[currentRootIndex] = currentLevelHash;
return nextIndex - 1;
}
/**
@dev Whether the root is present in the root history
*/
function isKnownRoot(bytes32 _root) public view returns(bool) {
if (_root == 0) {
return false;
}
uint32 i = currentRootIndex;
do {
if (_root == roots[i]) {
return true;
}
if (i == 0) {
i = ROOT_HISTORY_SIZE;
}
i--;
} while (i != currentRootIndex);
return false;
}
/**
@dev Returns the last root
*/
function getLastRoot() public view returns(bytes32) {
return roots[currentRootIndex];
}
} | isKnownRoot | function isKnownRoot(bytes32 _root) public view returns(bool) {
if (_root == 0) {
return false;
}
uint32 i = currentRootIndex;
do {
if (_root == roots[i]) {
return true;
}
if (i == 0) {
i = ROOT_HISTORY_SIZE;
}
i--;
} while (i != currentRootIndex);
return false;
}
| /**
@dev Whether the root is present in the root history
*/ | NatSpecMultiLine | v0.5.11+commit.c082d0b4 | None | bzzr://587549d2a38eba8d298e5df3a9c389827128193ddbe15c9ca5720461b16a92ac | {
"func_code_index": [
2732,
3092
]
} | 486 |
||
TornadoCash_eth | contracts/MerkleTreeWithHistory.sol | 0xa160cdab225685da1d56aa342ad8841c3b53f291 | Solidity | MerkleTreeWithHistory | contract MerkleTreeWithHistory {
uint256 public constant FIELD_SIZE = 21888242871839275222246405745257275088548364400416034343698204186575808495617;
uint256 public constant ZERO_VALUE = 21663839004416932945382355908790599225266501822907911457504978515578255421292; // = keccak256("tornado") % FIELD_SIZE
uint32 public levels;
// the following variables are made public for easier testing and debugging and
// are not supposed to be accessed in regular code
bytes32[] public filledSubtrees;
bytes32[] public zeros;
uint32 public currentRootIndex = 0;
uint32 public nextIndex = 0;
uint32 public constant ROOT_HISTORY_SIZE = 100;
bytes32[ROOT_HISTORY_SIZE] public roots;
constructor(uint32 _treeLevels) public {
require(_treeLevels > 0, "_treeLevels should be greater than zero");
require(_treeLevels < 32, "_treeLevels should be less than 32");
levels = _treeLevels;
bytes32 currentZero = bytes32(ZERO_VALUE);
zeros.push(currentZero);
filledSubtrees.push(currentZero);
for (uint32 i = 1; i < levels; i++) {
currentZero = hashLeftRight(currentZero, currentZero);
zeros.push(currentZero);
filledSubtrees.push(currentZero);
}
roots[0] = hashLeftRight(currentZero, currentZero);
}
/**
@dev Hash 2 tree leaves, returns MiMC(_left, _right)
*/
function hashLeftRight(bytes32 _left, bytes32 _right) public pure returns (bytes32) {
require(uint256(_left) < FIELD_SIZE, "_left should be inside the field");
require(uint256(_right) < FIELD_SIZE, "_right should be inside the field");
uint256 R = uint256(_left);
uint256 C = 0;
(R, C) = Hasher.MiMCSponge(R, C);
R = addmod(R, uint256(_right), FIELD_SIZE);
(R, C) = Hasher.MiMCSponge(R, C);
return bytes32(R);
}
function _insert(bytes32 _leaf) internal returns(uint32 index) {
uint32 currentIndex = nextIndex;
require(currentIndex != uint32(2)**levels, "Merkle tree is full. No more leafs can be added");
nextIndex += 1;
bytes32 currentLevelHash = _leaf;
bytes32 left;
bytes32 right;
for (uint32 i = 0; i < levels; i++) {
if (currentIndex % 2 == 0) {
left = currentLevelHash;
right = zeros[i];
filledSubtrees[i] = currentLevelHash;
} else {
left = filledSubtrees[i];
right = currentLevelHash;
}
currentLevelHash = hashLeftRight(left, right);
currentIndex /= 2;
}
currentRootIndex = (currentRootIndex + 1) % ROOT_HISTORY_SIZE;
roots[currentRootIndex] = currentLevelHash;
return nextIndex - 1;
}
/**
@dev Whether the root is present in the root history
*/
function isKnownRoot(bytes32 _root) public view returns(bool) {
if (_root == 0) {
return false;
}
uint32 i = currentRootIndex;
do {
if (_root == roots[i]) {
return true;
}
if (i == 0) {
i = ROOT_HISTORY_SIZE;
}
i--;
} while (i != currentRootIndex);
return false;
}
/**
@dev Returns the last root
*/
function getLastRoot() public view returns(bytes32) {
return roots[currentRootIndex];
}
} | getLastRoot | function getLastRoot() public view returns(bytes32) {
return roots[currentRootIndex];
}
| /**
@dev Returns the last root
*/ | NatSpecMultiLine | v0.5.11+commit.c082d0b4 | None | bzzr://587549d2a38eba8d298e5df3a9c389827128193ddbe15c9ca5720461b16a92ac | {
"func_code_index": [
3140,
3238
]
} | 487 |
||
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | name | function name() public view virtual override returns (string memory) {
return _name;
}
| /**
* @dev Returns the name of the token.
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
776,
881
]
} | 488 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | symbol | function symbol() public view virtual override returns (string memory) {
return _symbol;
}
| /**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
995,
1104
]
} | 489 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | decimals | function decimals() public view virtual override returns (uint8) {
return 18;
}
| /**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
1738,
1836
]
} | 490 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | totalSupply | function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
| /**
* @dev See {IERC20-totalSupply}.
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
1896,
2009
]
} | 491 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | balanceOf | function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
| /**
* @dev See {IERC20-balanceOf}.
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
2067,
2199
]
} | 492 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | transfer | function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
| /**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
2407,
2587
]
} | 493 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | allowance | function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
| /**
* @dev See {IERC20-allowance}.
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
2645,
2801
]
} | 494 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | approve | function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
| /**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
2943,
3117
]
} | 495 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | transferFrom | function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
| /**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
3594,
4079
]
} | 496 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | increaseAllowance | function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
| /**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
4483,
4703
]
} | 497 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | decreaseAllowance | function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
| /**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
5201,
5607
]
} | 498 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | _transfer | function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
| /**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
6092,
6818
]
} | 499 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | _mint | function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
| /** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
7100,
7504
]
} | 500 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | _burn | function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
| /**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
7832,
8416
]
} | 501 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | _approve | function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
| /**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
8849,
9234
]
} | 502 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | _beforeTokenTransfer | function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
| /**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
9829,
9959
]
} | 503 |
StarToken | @openzeppelin/contracts/token/ERC20/ERC20.sol | 0x24eb24647786135352cbb14f888b23277f0014e7 | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | _afterTokenTransfer | function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
| /**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/ | NatSpecMultiLine | v0.8.9+commit.e5eed63a | None | ipfs://5f0cb9e21d86cd5adb7cff989d61c2776f890af786cc12aa518a3c4db9b3e293 | {
"func_code_index": [
10558,
10687
]
} | 504 |
FixedROwnableToken | @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol | 0x32a5bf1df6e98aa9b3705534e8959b29894d3156 | Solidity | IERC20Metadata | interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
} | /**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/ | NatSpecMultiLine | name | function name() external view returns (string memory);
| /**
* @dev Returns the name of the token.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | {
"func_code_index": [
96,
154
]
} | 505 |
|
FixedROwnableToken | @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol | 0x32a5bf1df6e98aa9b3705534e8959b29894d3156 | Solidity | IERC20Metadata | interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
} | /**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/ | NatSpecMultiLine | symbol | function symbol() external view returns (string memory);
| /**
* @dev Returns the symbol of the token.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | MIT | {
"func_code_index": [
217,
277
]
} | 506 |
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