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DelegatedSending | DelegatedSending.sol | 0xf7908ab1f1e352f83c5ebc75051c0565aeaea5fb | Solidity | DelegatedSending | contract DelegatedSending is ReadsAzimuth
{
// Pool: :who was given their own pool by :prefix, of :size invites
//
event Pool(uint16 indexed prefix, uint32 indexed who, uint16 size);
// Sent: :by sent :point
//
event Sent( uint16 indexed prefix,
uint32 indexed fromPool,
uint32 by,
uint32 point,
address to);
// pools: per pool, the amount of planets that can still be given away
// per star by the pool's planet itself or the ones it invited
//
// pools are associated with planets by number,
// then with stars by number.
// pool 0 does not exist, and is used symbolically by :fromPool.
//
mapping(uint32 => mapping(uint16 => uint16)) public pools;
// fromPool: per planet, the pool from which they send invites
//
// when invited by planet n, the invitee sends from n's pool.
// a pool of 0 means the planet has its own invite pool.
//
mapping(uint32 => uint32) public fromPool;
// poolStars: per pool, the stars from which it has received invites
//
mapping(uint32 => uint16[]) public poolStars;
// poolStarsRegistered: per pool, per star, whether or not it is in
// the :poolStars array
//
mapping(uint32 => mapping(uint16 => bool)) public poolStarsRegistered;
// inviters: points with their own pools, invite tree roots
//
uint32[] public inviters;
// isInviter: whether or not a point is in the :inviters list
//
mapping(uint32 => bool) public isInviter;
// invited: for each point, the points they invited
//
mapping(uint32 => uint32[]) public invited;
// invitedBy: for each point, the point they were invited by
//
mapping(uint32 => uint32) public invitedBy;
// constructor(): register the azimuth contract
//
constructor(Azimuth _azimuth)
ReadsAzimuth(_azimuth)
public
{
//
}
// setPoolSize(): give _for their own pool if they don't have one already,
// and allow them to send _size points from _as
//
function setPoolSize(uint16 _as, uint32 _for, uint16 _size)
external
activePointOwner(_as)
{
fromPool[_for] = 0;
pools[_for][_as] = _size;
// register star as having given invites to pool,
// if that hasn't happened yet
//
if (false == poolStarsRegistered[_for][_as]) {
poolStars[_for].push(_as);
poolStarsRegistered[_for][_as] = true;
}
// add _for as an invite tree root
//
if (false == isInviter[_for])
{
isInviter[_for] = true;
inviters.push(_for);
}
emit Pool(_as, _for, _size);
}
// sendPoint(): as the point _as, spawn the point _point to _to.
//
// Requirements:
// - :msg.sender must be the owner of _as,
// - _to must not be the :msg.sender,
// - _as must be able to send the _point according to canSend()
//
function sendPoint(uint32 _as, uint32 _point, address _to)
external
activePointOwner(_as)
{
require(canSend(_as, _point));
// caller may not send to themselves
//
require(msg.sender != _to);
// recipient must be eligible to receive a planet from this contract
//
require(canReceive(_to));
// remove an invite from _as' current pool
//
uint32 pool = getPool(_as);
uint16 prefix = azimuth.getPrefix(_point);
pools[pool][prefix]--;
// associate the _point with this pool
//
fromPool[_point] = pool;
// add _point to _as' invite tree
//
invited[_as].push(_point);
invitedBy[_point] = _as;
// spawn _point to _to, they still need to accept the transfer manually
//
Ecliptic(azimuth.owner()).spawn(_point, _to);
emit Sent(prefix, pool, _as, _point, _to);
}
// canSend(): check whether current conditions allow _as to send _point
//
function canSend(uint32 _as, uint32 _point)
public
view
returns (bool result)
{
uint16 prefix = azimuth.getPrefix(_point);
uint32 pool = getPool(_as);
return ( // _as' pool for this prefix must not have been exhausted yet
//
(0 < pools[pool][prefix]) &&
//
// _point needs to not be (in the process of being) spawned
//
azimuth.isOwner(_point, 0x0) &&
//
// this contract must have permission to spawn points
//
azimuth.isSpawnProxy(prefix, this) &&
//
// the prefix must be linked
//
azimuth.hasBeenLinked(prefix) &&
//
// the prefix must not have hit its spawn limit yet
//
( azimuth.getSpawnCount(prefix) <
Ecliptic(azimuth.owner())
.getSpawnLimit(prefix, block.timestamp) ) );
}
// getPool(): get the invite pool _point belongs to
//
function getPool(uint32 _point)
public
view
returns (uint32 pool)
{
pool = fromPool[_point];
// no pool explicitly registered means they have their own pool,
// because they either were not invited by this contract, or have
// been granted their own pool by their star.
//
if (0 == pool)
{
// send from the planet's own pool, see also :fromPool
//
return _point;
}
return pool;
}
// canReceive(): whether the _recipient is eligible to receive a planet
// from this contract or not
//
// only those who don't own or are entitled to any points may receive
//
function canReceive(address _recipient)
public
view
returns (bool result)
{
return ( 0 == azimuth.getOwnedPointCount(_recipient) &&
0 == azimuth.getTransferringForCount(_recipient) );
}
// getPoolStars(): returns a list of stars _who has pools for
//
function getPoolStars(uint32 _who)
external
view
returns (uint16[] stars)
{
return poolStars[_who];
}
// getInviters(): returns a list of all points with their own pools
//
function getInviters()
external
view
returns (uint32[] invs)
{
return inviters;
}
// getInvited(): returns a list of points invited by _who
//
function getInvited(uint32 _who)
external
view
returns (uint32[] invd)
{
return invited[_who];
}
} | // DelegatedSending: invite-like point sending
//
// This contract allows planet owners to gift planets to their friends,
// if a star has allowed it.
//
// Star owners can grant a number of "invites" to planets. An "invite" in
// the context of this contract means a planet from the same parent star,
// that can be sent to an Ethereum address that owns no points.
// Planets that were sent as invites are also allowed to send invites, but
// instead of adhering to a star-set limit, they will use up invites from
// the same "pool" as their inviter.
//
// To allow planets to be sent by this contract, stars must set it as
// their spawnProxy using the Ecliptic.
// | LineComment | canReceive | function canReceive(address _recipient)
public
view
returns (bool result)
{
return ( 0 == azimuth.getOwnedPointCount(_recipient) &&
0 == azimuth.getTransferringForCount(_recipient) );
}
| // canReceive(): whether the _recipient is eligible to receive a planet
// from this contract or not
//
// only those who don't own or are entitled to any points may receive
// | LineComment | v0.4.24+commit.e67f0147 | MIT | bzzr://c3e090bdc98c036b421a1fe9195484d6c637a7cbd60674bdb2b7c38412122e01 | {
"func_code_index": [
5757,
5985
]
} | 2,007 |
DelegatedSending | DelegatedSending.sol | 0xf7908ab1f1e352f83c5ebc75051c0565aeaea5fb | Solidity | DelegatedSending | contract DelegatedSending is ReadsAzimuth
{
// Pool: :who was given their own pool by :prefix, of :size invites
//
event Pool(uint16 indexed prefix, uint32 indexed who, uint16 size);
// Sent: :by sent :point
//
event Sent( uint16 indexed prefix,
uint32 indexed fromPool,
uint32 by,
uint32 point,
address to);
// pools: per pool, the amount of planets that can still be given away
// per star by the pool's planet itself or the ones it invited
//
// pools are associated with planets by number,
// then with stars by number.
// pool 0 does not exist, and is used symbolically by :fromPool.
//
mapping(uint32 => mapping(uint16 => uint16)) public pools;
// fromPool: per planet, the pool from which they send invites
//
// when invited by planet n, the invitee sends from n's pool.
// a pool of 0 means the planet has its own invite pool.
//
mapping(uint32 => uint32) public fromPool;
// poolStars: per pool, the stars from which it has received invites
//
mapping(uint32 => uint16[]) public poolStars;
// poolStarsRegistered: per pool, per star, whether or not it is in
// the :poolStars array
//
mapping(uint32 => mapping(uint16 => bool)) public poolStarsRegistered;
// inviters: points with their own pools, invite tree roots
//
uint32[] public inviters;
// isInviter: whether or not a point is in the :inviters list
//
mapping(uint32 => bool) public isInviter;
// invited: for each point, the points they invited
//
mapping(uint32 => uint32[]) public invited;
// invitedBy: for each point, the point they were invited by
//
mapping(uint32 => uint32) public invitedBy;
// constructor(): register the azimuth contract
//
constructor(Azimuth _azimuth)
ReadsAzimuth(_azimuth)
public
{
//
}
// setPoolSize(): give _for their own pool if they don't have one already,
// and allow them to send _size points from _as
//
function setPoolSize(uint16 _as, uint32 _for, uint16 _size)
external
activePointOwner(_as)
{
fromPool[_for] = 0;
pools[_for][_as] = _size;
// register star as having given invites to pool,
// if that hasn't happened yet
//
if (false == poolStarsRegistered[_for][_as]) {
poolStars[_for].push(_as);
poolStarsRegistered[_for][_as] = true;
}
// add _for as an invite tree root
//
if (false == isInviter[_for])
{
isInviter[_for] = true;
inviters.push(_for);
}
emit Pool(_as, _for, _size);
}
// sendPoint(): as the point _as, spawn the point _point to _to.
//
// Requirements:
// - :msg.sender must be the owner of _as,
// - _to must not be the :msg.sender,
// - _as must be able to send the _point according to canSend()
//
function sendPoint(uint32 _as, uint32 _point, address _to)
external
activePointOwner(_as)
{
require(canSend(_as, _point));
// caller may not send to themselves
//
require(msg.sender != _to);
// recipient must be eligible to receive a planet from this contract
//
require(canReceive(_to));
// remove an invite from _as' current pool
//
uint32 pool = getPool(_as);
uint16 prefix = azimuth.getPrefix(_point);
pools[pool][prefix]--;
// associate the _point with this pool
//
fromPool[_point] = pool;
// add _point to _as' invite tree
//
invited[_as].push(_point);
invitedBy[_point] = _as;
// spawn _point to _to, they still need to accept the transfer manually
//
Ecliptic(azimuth.owner()).spawn(_point, _to);
emit Sent(prefix, pool, _as, _point, _to);
}
// canSend(): check whether current conditions allow _as to send _point
//
function canSend(uint32 _as, uint32 _point)
public
view
returns (bool result)
{
uint16 prefix = azimuth.getPrefix(_point);
uint32 pool = getPool(_as);
return ( // _as' pool for this prefix must not have been exhausted yet
//
(0 < pools[pool][prefix]) &&
//
// _point needs to not be (in the process of being) spawned
//
azimuth.isOwner(_point, 0x0) &&
//
// this contract must have permission to spawn points
//
azimuth.isSpawnProxy(prefix, this) &&
//
// the prefix must be linked
//
azimuth.hasBeenLinked(prefix) &&
//
// the prefix must not have hit its spawn limit yet
//
( azimuth.getSpawnCount(prefix) <
Ecliptic(azimuth.owner())
.getSpawnLimit(prefix, block.timestamp) ) );
}
// getPool(): get the invite pool _point belongs to
//
function getPool(uint32 _point)
public
view
returns (uint32 pool)
{
pool = fromPool[_point];
// no pool explicitly registered means they have their own pool,
// because they either were not invited by this contract, or have
// been granted their own pool by their star.
//
if (0 == pool)
{
// send from the planet's own pool, see also :fromPool
//
return _point;
}
return pool;
}
// canReceive(): whether the _recipient is eligible to receive a planet
// from this contract or not
//
// only those who don't own or are entitled to any points may receive
//
function canReceive(address _recipient)
public
view
returns (bool result)
{
return ( 0 == azimuth.getOwnedPointCount(_recipient) &&
0 == azimuth.getTransferringForCount(_recipient) );
}
// getPoolStars(): returns a list of stars _who has pools for
//
function getPoolStars(uint32 _who)
external
view
returns (uint16[] stars)
{
return poolStars[_who];
}
// getInviters(): returns a list of all points with their own pools
//
function getInviters()
external
view
returns (uint32[] invs)
{
return inviters;
}
// getInvited(): returns a list of points invited by _who
//
function getInvited(uint32 _who)
external
view
returns (uint32[] invd)
{
return invited[_who];
}
} | // DelegatedSending: invite-like point sending
//
// This contract allows planet owners to gift planets to their friends,
// if a star has allowed it.
//
// Star owners can grant a number of "invites" to planets. An "invite" in
// the context of this contract means a planet from the same parent star,
// that can be sent to an Ethereum address that owns no points.
// Planets that were sent as invites are also allowed to send invites, but
// instead of adhering to a star-set limit, they will use up invites from
// the same "pool" as their inviter.
//
// To allow planets to be sent by this contract, stars must set it as
// their spawnProxy using the Ecliptic.
// | LineComment | getPoolStars | function getPoolStars(uint32 _who)
external
view
returns (uint16[] stars)
{
return poolStars[_who];
}
| // getPoolStars(): returns a list of stars _who has pools for
// | LineComment | v0.4.24+commit.e67f0147 | MIT | bzzr://c3e090bdc98c036b421a1fe9195484d6c637a7cbd60674bdb2b7c38412122e01 | {
"func_code_index": [
6060,
6190
]
} | 2,008 |
DelegatedSending | DelegatedSending.sol | 0xf7908ab1f1e352f83c5ebc75051c0565aeaea5fb | Solidity | DelegatedSending | contract DelegatedSending is ReadsAzimuth
{
// Pool: :who was given their own pool by :prefix, of :size invites
//
event Pool(uint16 indexed prefix, uint32 indexed who, uint16 size);
// Sent: :by sent :point
//
event Sent( uint16 indexed prefix,
uint32 indexed fromPool,
uint32 by,
uint32 point,
address to);
// pools: per pool, the amount of planets that can still be given away
// per star by the pool's planet itself or the ones it invited
//
// pools are associated with planets by number,
// then with stars by number.
// pool 0 does not exist, and is used symbolically by :fromPool.
//
mapping(uint32 => mapping(uint16 => uint16)) public pools;
// fromPool: per planet, the pool from which they send invites
//
// when invited by planet n, the invitee sends from n's pool.
// a pool of 0 means the planet has its own invite pool.
//
mapping(uint32 => uint32) public fromPool;
// poolStars: per pool, the stars from which it has received invites
//
mapping(uint32 => uint16[]) public poolStars;
// poolStarsRegistered: per pool, per star, whether or not it is in
// the :poolStars array
//
mapping(uint32 => mapping(uint16 => bool)) public poolStarsRegistered;
// inviters: points with their own pools, invite tree roots
//
uint32[] public inviters;
// isInviter: whether or not a point is in the :inviters list
//
mapping(uint32 => bool) public isInviter;
// invited: for each point, the points they invited
//
mapping(uint32 => uint32[]) public invited;
// invitedBy: for each point, the point they were invited by
//
mapping(uint32 => uint32) public invitedBy;
// constructor(): register the azimuth contract
//
constructor(Azimuth _azimuth)
ReadsAzimuth(_azimuth)
public
{
//
}
// setPoolSize(): give _for their own pool if they don't have one already,
// and allow them to send _size points from _as
//
function setPoolSize(uint16 _as, uint32 _for, uint16 _size)
external
activePointOwner(_as)
{
fromPool[_for] = 0;
pools[_for][_as] = _size;
// register star as having given invites to pool,
// if that hasn't happened yet
//
if (false == poolStarsRegistered[_for][_as]) {
poolStars[_for].push(_as);
poolStarsRegistered[_for][_as] = true;
}
// add _for as an invite tree root
//
if (false == isInviter[_for])
{
isInviter[_for] = true;
inviters.push(_for);
}
emit Pool(_as, _for, _size);
}
// sendPoint(): as the point _as, spawn the point _point to _to.
//
// Requirements:
// - :msg.sender must be the owner of _as,
// - _to must not be the :msg.sender,
// - _as must be able to send the _point according to canSend()
//
function sendPoint(uint32 _as, uint32 _point, address _to)
external
activePointOwner(_as)
{
require(canSend(_as, _point));
// caller may not send to themselves
//
require(msg.sender != _to);
// recipient must be eligible to receive a planet from this contract
//
require(canReceive(_to));
// remove an invite from _as' current pool
//
uint32 pool = getPool(_as);
uint16 prefix = azimuth.getPrefix(_point);
pools[pool][prefix]--;
// associate the _point with this pool
//
fromPool[_point] = pool;
// add _point to _as' invite tree
//
invited[_as].push(_point);
invitedBy[_point] = _as;
// spawn _point to _to, they still need to accept the transfer manually
//
Ecliptic(azimuth.owner()).spawn(_point, _to);
emit Sent(prefix, pool, _as, _point, _to);
}
// canSend(): check whether current conditions allow _as to send _point
//
function canSend(uint32 _as, uint32 _point)
public
view
returns (bool result)
{
uint16 prefix = azimuth.getPrefix(_point);
uint32 pool = getPool(_as);
return ( // _as' pool for this prefix must not have been exhausted yet
//
(0 < pools[pool][prefix]) &&
//
// _point needs to not be (in the process of being) spawned
//
azimuth.isOwner(_point, 0x0) &&
//
// this contract must have permission to spawn points
//
azimuth.isSpawnProxy(prefix, this) &&
//
// the prefix must be linked
//
azimuth.hasBeenLinked(prefix) &&
//
// the prefix must not have hit its spawn limit yet
//
( azimuth.getSpawnCount(prefix) <
Ecliptic(azimuth.owner())
.getSpawnLimit(prefix, block.timestamp) ) );
}
// getPool(): get the invite pool _point belongs to
//
function getPool(uint32 _point)
public
view
returns (uint32 pool)
{
pool = fromPool[_point];
// no pool explicitly registered means they have their own pool,
// because they either were not invited by this contract, or have
// been granted their own pool by their star.
//
if (0 == pool)
{
// send from the planet's own pool, see also :fromPool
//
return _point;
}
return pool;
}
// canReceive(): whether the _recipient is eligible to receive a planet
// from this contract or not
//
// only those who don't own or are entitled to any points may receive
//
function canReceive(address _recipient)
public
view
returns (bool result)
{
return ( 0 == azimuth.getOwnedPointCount(_recipient) &&
0 == azimuth.getTransferringForCount(_recipient) );
}
// getPoolStars(): returns a list of stars _who has pools for
//
function getPoolStars(uint32 _who)
external
view
returns (uint16[] stars)
{
return poolStars[_who];
}
// getInviters(): returns a list of all points with their own pools
//
function getInviters()
external
view
returns (uint32[] invs)
{
return inviters;
}
// getInvited(): returns a list of points invited by _who
//
function getInvited(uint32 _who)
external
view
returns (uint32[] invd)
{
return invited[_who];
}
} | // DelegatedSending: invite-like point sending
//
// This contract allows planet owners to gift planets to their friends,
// if a star has allowed it.
//
// Star owners can grant a number of "invites" to planets. An "invite" in
// the context of this contract means a planet from the same parent star,
// that can be sent to an Ethereum address that owns no points.
// Planets that were sent as invites are also allowed to send invites, but
// instead of adhering to a star-set limit, they will use up invites from
// the same "pool" as their inviter.
//
// To allow planets to be sent by this contract, stars must set it as
// their spawnProxy using the Ecliptic.
// | LineComment | getInviters | function getInviters()
external
view
returns (uint32[] invs)
{
return inviters;
}
| // getInviters(): returns a list of all points with their own pools
// | LineComment | v0.4.24+commit.e67f0147 | MIT | bzzr://c3e090bdc98c036b421a1fe9195484d6c637a7cbd60674bdb2b7c38412122e01 | {
"func_code_index": [
6271,
6381
]
} | 2,009 |
DelegatedSending | DelegatedSending.sol | 0xf7908ab1f1e352f83c5ebc75051c0565aeaea5fb | Solidity | DelegatedSending | contract DelegatedSending is ReadsAzimuth
{
// Pool: :who was given their own pool by :prefix, of :size invites
//
event Pool(uint16 indexed prefix, uint32 indexed who, uint16 size);
// Sent: :by sent :point
//
event Sent( uint16 indexed prefix,
uint32 indexed fromPool,
uint32 by,
uint32 point,
address to);
// pools: per pool, the amount of planets that can still be given away
// per star by the pool's planet itself or the ones it invited
//
// pools are associated with planets by number,
// then with stars by number.
// pool 0 does not exist, and is used symbolically by :fromPool.
//
mapping(uint32 => mapping(uint16 => uint16)) public pools;
// fromPool: per planet, the pool from which they send invites
//
// when invited by planet n, the invitee sends from n's pool.
// a pool of 0 means the planet has its own invite pool.
//
mapping(uint32 => uint32) public fromPool;
// poolStars: per pool, the stars from which it has received invites
//
mapping(uint32 => uint16[]) public poolStars;
// poolStarsRegistered: per pool, per star, whether or not it is in
// the :poolStars array
//
mapping(uint32 => mapping(uint16 => bool)) public poolStarsRegistered;
// inviters: points with their own pools, invite tree roots
//
uint32[] public inviters;
// isInviter: whether or not a point is in the :inviters list
//
mapping(uint32 => bool) public isInviter;
// invited: for each point, the points they invited
//
mapping(uint32 => uint32[]) public invited;
// invitedBy: for each point, the point they were invited by
//
mapping(uint32 => uint32) public invitedBy;
// constructor(): register the azimuth contract
//
constructor(Azimuth _azimuth)
ReadsAzimuth(_azimuth)
public
{
//
}
// setPoolSize(): give _for their own pool if they don't have one already,
// and allow them to send _size points from _as
//
function setPoolSize(uint16 _as, uint32 _for, uint16 _size)
external
activePointOwner(_as)
{
fromPool[_for] = 0;
pools[_for][_as] = _size;
// register star as having given invites to pool,
// if that hasn't happened yet
//
if (false == poolStarsRegistered[_for][_as]) {
poolStars[_for].push(_as);
poolStarsRegistered[_for][_as] = true;
}
// add _for as an invite tree root
//
if (false == isInviter[_for])
{
isInviter[_for] = true;
inviters.push(_for);
}
emit Pool(_as, _for, _size);
}
// sendPoint(): as the point _as, spawn the point _point to _to.
//
// Requirements:
// - :msg.sender must be the owner of _as,
// - _to must not be the :msg.sender,
// - _as must be able to send the _point according to canSend()
//
function sendPoint(uint32 _as, uint32 _point, address _to)
external
activePointOwner(_as)
{
require(canSend(_as, _point));
// caller may not send to themselves
//
require(msg.sender != _to);
// recipient must be eligible to receive a planet from this contract
//
require(canReceive(_to));
// remove an invite from _as' current pool
//
uint32 pool = getPool(_as);
uint16 prefix = azimuth.getPrefix(_point);
pools[pool][prefix]--;
// associate the _point with this pool
//
fromPool[_point] = pool;
// add _point to _as' invite tree
//
invited[_as].push(_point);
invitedBy[_point] = _as;
// spawn _point to _to, they still need to accept the transfer manually
//
Ecliptic(azimuth.owner()).spawn(_point, _to);
emit Sent(prefix, pool, _as, _point, _to);
}
// canSend(): check whether current conditions allow _as to send _point
//
function canSend(uint32 _as, uint32 _point)
public
view
returns (bool result)
{
uint16 prefix = azimuth.getPrefix(_point);
uint32 pool = getPool(_as);
return ( // _as' pool for this prefix must not have been exhausted yet
//
(0 < pools[pool][prefix]) &&
//
// _point needs to not be (in the process of being) spawned
//
azimuth.isOwner(_point, 0x0) &&
//
// this contract must have permission to spawn points
//
azimuth.isSpawnProxy(prefix, this) &&
//
// the prefix must be linked
//
azimuth.hasBeenLinked(prefix) &&
//
// the prefix must not have hit its spawn limit yet
//
( azimuth.getSpawnCount(prefix) <
Ecliptic(azimuth.owner())
.getSpawnLimit(prefix, block.timestamp) ) );
}
// getPool(): get the invite pool _point belongs to
//
function getPool(uint32 _point)
public
view
returns (uint32 pool)
{
pool = fromPool[_point];
// no pool explicitly registered means they have their own pool,
// because they either were not invited by this contract, or have
// been granted their own pool by their star.
//
if (0 == pool)
{
// send from the planet's own pool, see also :fromPool
//
return _point;
}
return pool;
}
// canReceive(): whether the _recipient is eligible to receive a planet
// from this contract or not
//
// only those who don't own or are entitled to any points may receive
//
function canReceive(address _recipient)
public
view
returns (bool result)
{
return ( 0 == azimuth.getOwnedPointCount(_recipient) &&
0 == azimuth.getTransferringForCount(_recipient) );
}
// getPoolStars(): returns a list of stars _who has pools for
//
function getPoolStars(uint32 _who)
external
view
returns (uint16[] stars)
{
return poolStars[_who];
}
// getInviters(): returns a list of all points with their own pools
//
function getInviters()
external
view
returns (uint32[] invs)
{
return inviters;
}
// getInvited(): returns a list of points invited by _who
//
function getInvited(uint32 _who)
external
view
returns (uint32[] invd)
{
return invited[_who];
}
} | // DelegatedSending: invite-like point sending
//
// This contract allows planet owners to gift planets to their friends,
// if a star has allowed it.
//
// Star owners can grant a number of "invites" to planets. An "invite" in
// the context of this contract means a planet from the same parent star,
// that can be sent to an Ethereum address that owns no points.
// Planets that were sent as invites are also allowed to send invites, but
// instead of adhering to a star-set limit, they will use up invites from
// the same "pool" as their inviter.
//
// To allow planets to be sent by this contract, stars must set it as
// their spawnProxy using the Ecliptic.
// | LineComment | getInvited | function getInvited(uint32 _who)
external
view
returns (uint32[] invd)
{
return invited[_who];
}
| // getInvited(): returns a list of points invited by _who
// | LineComment | v0.4.24+commit.e67f0147 | MIT | bzzr://c3e090bdc98c036b421a1fe9195484d6c637a7cbd60674bdb2b7c38412122e01 | {
"func_code_index": [
6452,
6577
]
} | 2,010 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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).
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {Address-functionCall-address-bytes-}, but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Performs a Solidity function call using a low level `call`,
* transferring `value` wei. 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).
*
* Requirements:
*
* - `target` must be a contract.
* - the calling contract must have an ETH balance of at least `value`.
* - calling `target` with `data` must not revert.
*/
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 {Address-functionCallWithValue-address-bytes-uint256-}, but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*/
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 | 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
606,
1230
]
} | 2,011 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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).
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {Address-functionCall-address-bytes-}, but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Performs a Solidity function call using a low level `call`,
* transferring `value` wei. 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).
*
* Requirements:
*
* - `target` must be a contract.
* - the calling contract must have an ETH balance of at least `value`.
* - calling `target` with `data` must not revert.
*/
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 {Address-functionCallWithValue-address-bytes-uint256-}, but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*/
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 | 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
2160,
2562
]
} | 2,012 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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).
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {Address-functionCall-address-bytes-}, but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Performs a Solidity function call using a low level `call`,
* transferring `value` wei. 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).
*
* Requirements:
*
* - `target` must be a contract.
* - the calling contract must have an ETH balance of at least `value`.
* - calling `target` with `data` must not revert.
*/
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 {Address-functionCallWithValue-address-bytes-uint256-}, but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*/
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) 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).
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*/ | NatSpecMultiLine | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
3032,
3210
]
} | 2,013 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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).
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {Address-functionCall-address-bytes-}, but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Performs a Solidity function call using a low level `call`,
* transferring `value` wei. 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).
*
* Requirements:
*
* - `target` must be a contract.
* - the calling contract must have an ETH balance of at least `value`.
* - calling `target` with `data` must not revert.
*/
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 {Address-functionCallWithValue-address-bytes-uint256-}, but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*/
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 {Address-functionCall-address-bytes-}, but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*/ | NatSpecMultiLine | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
3374,
3575
]
} | 2,014 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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).
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {Address-functionCall-address-bytes-}, but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Performs a Solidity function call using a low level `call`,
* transferring `value` wei. 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).
*
* Requirements:
*
* - `target` must be a contract.
* - the calling contract must have an ETH balance of at least `value`.
* - calling `target` with `data` must not revert.
*/
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 {Address-functionCallWithValue-address-bytes-uint256-}, but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*/
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 Performs a Solidity function call using a low level `call`,
* transferring `value` wei. 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).
*
* Requirements:
*
* - `target` must be a contract.
* - the calling contract must have an ETH balance of at least `value`.
* - calling `target` with `data` must not revert.
*/ | NatSpecMultiLine | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
4148,
4379
]
} | 2,015 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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).
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {Address-functionCall-address-bytes-}, but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Performs a Solidity function call using a low level `call`,
* transferring `value` wei. 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).
*
* Requirements:
*
* - `target` must be a contract.
* - the calling contract must have an ETH balance of at least `value`.
* - calling `target` with `data` must not revert.
*/
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 {Address-functionCallWithValue-address-bytes-uint256-}, but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*/
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 {Address-functionCallWithValue-address-bytes-uint256-}, but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*/ | NatSpecMultiLine | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
4560,
4881
]
} | 2,016 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | totalSupply | function totalSupply() external view returns (uint256);
| /**
* @dev Returns the amount of tokens in existence.
*/ | NatSpecMultiLine | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
94,
154
]
} | 2,017 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | balanceOf | function balanceOf(address account) external view returns (uint256);
| /**
* @dev Returns the amount of tokens owned by `account`.
*/ | NatSpecMultiLine | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
237,
310
]
} | 2,018 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
534,
616
]
} | 2,019 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
895,
983
]
} | 2,020 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
1647,
1726
]
} | 2,021 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
2039,
2141
]
} | 2,022 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | NatSpecMultiLine | 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
259,
445
]
} | 2,023 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | NatSpecMultiLine | 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
723,
864
]
} | 2,024 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | NatSpecMultiLine | 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
1162,
1359
]
} | 2,025 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | 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.
// 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
1613,
2089
]
} | 2,026 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | NatSpecMultiLine | 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
2560,
2697
]
} | 2,027 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | NatSpecMultiLine | 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
3188,
3471
]
} | 2,028 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | NatSpecMultiLine | 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
3931,
4066
]
} | 2,029 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | NatSpecMultiLine | 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
4546,
4717
]
} | 2,030 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | Solidity | SafeERC20 | library SafeERC20 {
using SafeMath for uint256;
using Address for address;
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
require((value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).add(value);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) { // Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
} | /**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/ | NatSpecMultiLine | safeApprove | function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
require((value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
| /**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/ | NatSpecMultiLine | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
747,
1374
]
} | 2,031 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | Solidity | SafeERC20 | library SafeERC20 {
using SafeMath for uint256;
using Address for address;
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
require((value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).add(value);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) { // Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
} | /**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/ | NatSpecMultiLine | _callOptionalReturn | function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) { // Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
| /**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/ | NatSpecMultiLine | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
2393,
3159
]
} | 2,032 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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;
}
} | /**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/ | NatSpecMultiLine | owner | function owner() public view returns (address) {
return _owner;
}
| /**
* @dev Returns the address of the current owner.
*/ | NatSpecMultiLine | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
497,
581
]
} | 2,033 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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;
}
} | /**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/ | NatSpecMultiLine | 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
1139,
1292
]
} | 2,034 |
HatAirdrop | HatAirdrop.sol | 0x63f28989cca095e61b1dc74050e6132eeb4cb7c3 | 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;
}
} | /**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/ | NatSpecMultiLine | 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 | v0.6.6+commit.6c089d02 | MIT | ipfs://75e0826307cea4fcdb14e513c28c765678b11bf94c772e7638ae18889c1108e1 | {
"func_code_index": [
1442,
1691
]
} | 2,035 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | totalSupply | function totalSupply() external view returns (uint256);
| /**
* @dev Returns the amount of tokens in existence.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
94,
154
]
} | 2,036 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | balanceOf | function balanceOf(address account) external view returns (uint256);
| /**
* @dev Returns the amount of tokens owned by `account`.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
237,
310
]
} | 2,037 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
534,
616
]
} | 2,038 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
895,
983
]
} | 2,039 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
1647,
1726
]
} | 2,040 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
2039,
2141
]
} | 2,041 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
259,
445
]
} | 2,042 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
723,
864
]
} | 2,043 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
1162,
1359
]
} | 2,044 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | 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.
// 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
1613,
2089
]
} | 2,045 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
2560,
2697
]
} | 2,046 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
3188,
3471
]
} | 2,047 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
3931,
4066
]
} | 2,048 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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;
}
} | /**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
4546,
4717
]
} | 2,049 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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);
}
}
}
} | /**
* @dev Collection of functions related to the address type
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
606,
1230
]
} | 2,050 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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);
}
}
}
} | /**
* @dev Collection of functions related to the address type
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
2160,
2562
]
} | 2,051 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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);
}
}
}
} | /**
* @dev Collection of functions related to the address type
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
3318,
3496
]
} | 2,052 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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);
}
}
}
} | /**
* @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 | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
3721,
3922
]
} | 2,053 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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);
}
}
}
} | /**
* @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 | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
4292,
4523
]
} | 2,054 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | 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);
}
}
}
} | /**
* @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 | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
4774,
5095
]
} | 2,055 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | SafeERC20 | library SafeERC20 {
using SafeMath for uint256;
using Address for address;
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
require((value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).add(value);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) { // Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
} | /**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/ | NatSpecMultiLine | safeApprove | function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
require((value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
| /**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
747,
1374
]
} | 2,056 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | SafeERC20 | library SafeERC20 {
using SafeMath for uint256;
using Address for address;
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
require((value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).add(value);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) { // Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
} | /**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/ | NatSpecMultiLine | _callOptionalReturn | function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) { // Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
| /**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
2393,
3159
]
} | 2,057 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | Ownable | contract Ownable is Context {
/**
* @dev So here we seperate the rights of the classic ownership into 'owner' and 'minter'
* this way the developer/owner stays the 'owner' and can make changes like adding a pool
* at any time but cannot mint anymore as soon as the 'minter' gets changes (to the chef contract)
*/
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;
}
} | /**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/ | NatSpecMultiLine | owner | function owner() public view returns (address) {
return _owner;
}
| /**
* @dev Returns the address of the current owner.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
811,
895
]
} | 2,058 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | Ownable | contract Ownable is Context {
/**
* @dev So here we seperate the rights of the classic ownership into 'owner' and 'minter'
* this way the developer/owner stays the 'owner' and can make changes like adding a pool
* at any time but cannot mint anymore as soon as the 'minter' gets changes (to the chef contract)
*/
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;
}
} | /**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
1453,
1606
]
} | 2,059 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | Ownable | contract Ownable is Context {
/**
* @dev So here we seperate the rights of the classic ownership into 'owner' and 'minter'
* this way the developer/owner stays the 'owner' and can make changes like adding a pool
* at any time but cannot mint anymore as soon as the 'minter' gets changes (to the chef contract)
*/
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;
}
} | /**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/ | NatSpecMultiLine | 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 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
1756,
2005
]
} | 2,060 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | Mintable | contract Mintable is Context {
/**
* @dev So here we seperate the rights of the classic ownership into 'owner' and 'minter'
* this way the developer/owner stays the 'owner' and can make changes like adding a pool
* at any time but cannot mint anymore as soon as the 'minter' gets changes (to the chef contract)
*/
address private _minter;
event MintershipTransferred(address indexed previousMinter, address indexed newMinter);
/**
* @dev Initializes the contract setting the deployer as the initial minter.
*/
constructor () internal {
address msgSender = _msgSender();
_minter = msgSender;
emit MintershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current minter.
*/
function minter() public view returns (address) {
return _minter;
}
/**
* @dev Throws if called by any account other than the minter.
*/
modifier onlyMinter() {
require(_minter == _msgSender(), "Mintable: caller is not the minter");
_;
}
/**
* @dev Transfers mintership of the contract to a new account (`newMinter`).
* Can only be called by the current minter.
*/
function transferMintership(address newMinter) public virtual onlyMinter {
require(newMinter != address(0), "Mintable: new minter is the zero address");
emit MintershipTransferred(_minter, newMinter);
_minter = newMinter;
}
} | /**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an minter) that can be granted exclusive access to
* specific functions.
*
* By default, the minter account will be the one that deploys the contract. This
* can later be changed with {transferMintership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyMinter`, which can be applied to your functions to restrict their use to
* the minter.
*/ | NatSpecMultiLine | minter | function minter() public view returns (address) {
return _minter;
}
| /**
* @dev Returns the address of the current minter.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
820,
906
]
} | 2,061 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | Mintable | contract Mintable is Context {
/**
* @dev So here we seperate the rights of the classic ownership into 'owner' and 'minter'
* this way the developer/owner stays the 'owner' and can make changes like adding a pool
* at any time but cannot mint anymore as soon as the 'minter' gets changes (to the chef contract)
*/
address private _minter;
event MintershipTransferred(address indexed previousMinter, address indexed newMinter);
/**
* @dev Initializes the contract setting the deployer as the initial minter.
*/
constructor () internal {
address msgSender = _msgSender();
_minter = msgSender;
emit MintershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current minter.
*/
function minter() public view returns (address) {
return _minter;
}
/**
* @dev Throws if called by any account other than the minter.
*/
modifier onlyMinter() {
require(_minter == _msgSender(), "Mintable: caller is not the minter");
_;
}
/**
* @dev Transfers mintership of the contract to a new account (`newMinter`).
* Can only be called by the current minter.
*/
function transferMintership(address newMinter) public virtual onlyMinter {
require(newMinter != address(0), "Mintable: new minter is the zero address");
emit MintershipTransferred(_minter, newMinter);
_minter = newMinter;
}
} | /**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an minter) that can be granted exclusive access to
* specific functions.
*
* By default, the minter account will be the one that deploys the contract. This
* can later be changed with {transferMintership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyMinter`, which can be applied to your functions to restrict their use to
* the minter.
*/ | NatSpecMultiLine | transferMintership | function transferMintership(address newMinter) public virtual onlyMinter {
require(newMinter != address(0), "Mintable: new minter is the zero address");
emit MintershipTransferred(_minter, newMinter);
_minter = newMinter;
}
| /**
* @dev Transfers mintership of the contract to a new account (`newMinter`).
* Can only be called by the current minter.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
1276,
1536
]
} | 2,062 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | ERC20 | contract ERC20 is Context, IERC20 {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
uint256 private _burnedSupply;
uint256 private _burnRate;
string private _name;
string private _symbol;
uint256 private _decimals;
/**
* @dev Sets the values for {name} and {symbol}, initializes {decimals} with
* a default value of 18.
*
* To select a different value for {decimals}, use {_setupDecimals}.
*
* All three of these values are immutable: they can only be set once during
* construction.
*/
constructor (string memory name, string memory symbol, uint256 decimals, uint256 burnrate, uint256 initSupply) public {
_name = name;
_symbol = symbol;
_decimals = decimals;
_burnRate = burnrate;
_totalSupply = 0;
_mint(msg.sender, initSupply*(10**_decimals)); // initial 1000 SAIYAN tokens
_burnedSupply = 0;
}
/**
* @dev Returns the name of the token.
*/
function name() public view returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view 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 {_setupDecimals} is
* called.
*
* 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 returns (uint256) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
/**
* @dev Returns the amount of burned tokens.
*/
function burnedSupply() public view returns (uint256) {
return _burnedSupply;
}
/**
* @dev Returns the burnrate.
*/
function burnRate() public view returns (uint256) {
return _burnRate;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view 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-transfer}.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function burn(uint256 amount) public virtual returns (bool) {
_burn(_msgSender(), amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
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");
uint256 amount_burn = amount.mul(_burnRate).div(100);
uint256 amount_send = amount.sub(amount_burn);
require(amount == amount_send + amount_burn, "Burn value invalid");
_burn(sender, amount_burn);
amount = amount_send;
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
_burnedSupply = _burnedSupply.add(amount);
emit Transfer(account, address(0), amount);
}
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);
}
function _setupBurnrate(uint8 burnrate_) internal virtual {
_burnRate = burnrate_;
}
function _beforeTokenTransfer(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 guidelines: functions revert instead
* of 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 returns (string memory) {
return _name;
}
| /**
* @dev Returns the name of the token.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
1202,
1290
]
} | 2,063 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | ERC20 | contract ERC20 is Context, IERC20 {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
uint256 private _burnedSupply;
uint256 private _burnRate;
string private _name;
string private _symbol;
uint256 private _decimals;
/**
* @dev Sets the values for {name} and {symbol}, initializes {decimals} with
* a default value of 18.
*
* To select a different value for {decimals}, use {_setupDecimals}.
*
* All three of these values are immutable: they can only be set once during
* construction.
*/
constructor (string memory name, string memory symbol, uint256 decimals, uint256 burnrate, uint256 initSupply) public {
_name = name;
_symbol = symbol;
_decimals = decimals;
_burnRate = burnrate;
_totalSupply = 0;
_mint(msg.sender, initSupply*(10**_decimals)); // initial 1000 SAIYAN tokens
_burnedSupply = 0;
}
/**
* @dev Returns the name of the token.
*/
function name() public view returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view 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 {_setupDecimals} is
* called.
*
* 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 returns (uint256) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
/**
* @dev Returns the amount of burned tokens.
*/
function burnedSupply() public view returns (uint256) {
return _burnedSupply;
}
/**
* @dev Returns the burnrate.
*/
function burnRate() public view returns (uint256) {
return _burnRate;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view 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-transfer}.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function burn(uint256 amount) public virtual returns (bool) {
_burn(_msgSender(), amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
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");
uint256 amount_burn = amount.mul(_burnRate).div(100);
uint256 amount_send = amount.sub(amount_burn);
require(amount == amount_send + amount_burn, "Burn value invalid");
_burn(sender, amount_burn);
amount = amount_send;
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
_burnedSupply = _burnedSupply.add(amount);
emit Transfer(account, address(0), amount);
}
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);
}
function _setupBurnrate(uint8 burnrate_) internal virtual {
_burnRate = burnrate_;
}
function _beforeTokenTransfer(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 guidelines: functions revert instead
* of 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 returns (string memory) {
return _symbol;
}
| /**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
1404,
1496
]
} | 2,064 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | ERC20 | contract ERC20 is Context, IERC20 {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
uint256 private _burnedSupply;
uint256 private _burnRate;
string private _name;
string private _symbol;
uint256 private _decimals;
/**
* @dev Sets the values for {name} and {symbol}, initializes {decimals} with
* a default value of 18.
*
* To select a different value for {decimals}, use {_setupDecimals}.
*
* All three of these values are immutable: they can only be set once during
* construction.
*/
constructor (string memory name, string memory symbol, uint256 decimals, uint256 burnrate, uint256 initSupply) public {
_name = name;
_symbol = symbol;
_decimals = decimals;
_burnRate = burnrate;
_totalSupply = 0;
_mint(msg.sender, initSupply*(10**_decimals)); // initial 1000 SAIYAN tokens
_burnedSupply = 0;
}
/**
* @dev Returns the name of the token.
*/
function name() public view returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view 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 {_setupDecimals} is
* called.
*
* 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 returns (uint256) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
/**
* @dev Returns the amount of burned tokens.
*/
function burnedSupply() public view returns (uint256) {
return _burnedSupply;
}
/**
* @dev Returns the burnrate.
*/
function burnRate() public view returns (uint256) {
return _burnRate;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view 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-transfer}.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function burn(uint256 amount) public virtual returns (bool) {
_burn(_msgSender(), amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
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");
uint256 amount_burn = amount.mul(_burnRate).div(100);
uint256 amount_send = amount.sub(amount_burn);
require(amount == amount_send + amount_burn, "Burn value invalid");
_burn(sender, amount_burn);
amount = amount_send;
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
_burnedSupply = _burnedSupply.add(amount);
emit Transfer(account, address(0), amount);
}
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);
}
function _setupBurnrate(uint8 burnrate_) internal virtual {
_burnRate = burnrate_;
}
function _beforeTokenTransfer(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 guidelines: functions revert instead
* of 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 returns (uint256) {
return _decimals;
}
| /**
* @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 {_setupDecimals} is
* called.
*
* 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 | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
2129,
2219
]
} | 2,065 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | ERC20 | contract ERC20 is Context, IERC20 {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
uint256 private _burnedSupply;
uint256 private _burnRate;
string private _name;
string private _symbol;
uint256 private _decimals;
/**
* @dev Sets the values for {name} and {symbol}, initializes {decimals} with
* a default value of 18.
*
* To select a different value for {decimals}, use {_setupDecimals}.
*
* All three of these values are immutable: they can only be set once during
* construction.
*/
constructor (string memory name, string memory symbol, uint256 decimals, uint256 burnrate, uint256 initSupply) public {
_name = name;
_symbol = symbol;
_decimals = decimals;
_burnRate = burnrate;
_totalSupply = 0;
_mint(msg.sender, initSupply*(10**_decimals)); // initial 1000 SAIYAN tokens
_burnedSupply = 0;
}
/**
* @dev Returns the name of the token.
*/
function name() public view returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view 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 {_setupDecimals} is
* called.
*
* 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 returns (uint256) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
/**
* @dev Returns the amount of burned tokens.
*/
function burnedSupply() public view returns (uint256) {
return _burnedSupply;
}
/**
* @dev Returns the burnrate.
*/
function burnRate() public view returns (uint256) {
return _burnRate;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view 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-transfer}.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function burn(uint256 amount) public virtual returns (bool) {
_burn(_msgSender(), amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
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");
uint256 amount_burn = amount.mul(_burnRate).div(100);
uint256 amount_send = amount.sub(amount_burn);
require(amount == amount_send + amount_burn, "Burn value invalid");
_burn(sender, amount_burn);
amount = amount_send;
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
_burnedSupply = _burnedSupply.add(amount);
emit Transfer(account, address(0), amount);
}
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);
}
function _setupBurnrate(uint8 burnrate_) internal virtual {
_burnRate = burnrate_;
}
function _beforeTokenTransfer(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 guidelines: functions revert instead
* of 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 override returns (uint256) {
return _totalSupply;
}
| /**
* @dev See {IERC20-totalSupply}.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
2279,
2384
]
} | 2,066 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | ERC20 | contract ERC20 is Context, IERC20 {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
uint256 private _burnedSupply;
uint256 private _burnRate;
string private _name;
string private _symbol;
uint256 private _decimals;
/**
* @dev Sets the values for {name} and {symbol}, initializes {decimals} with
* a default value of 18.
*
* To select a different value for {decimals}, use {_setupDecimals}.
*
* All three of these values are immutable: they can only be set once during
* construction.
*/
constructor (string memory name, string memory symbol, uint256 decimals, uint256 burnrate, uint256 initSupply) public {
_name = name;
_symbol = symbol;
_decimals = decimals;
_burnRate = burnrate;
_totalSupply = 0;
_mint(msg.sender, initSupply*(10**_decimals)); // initial 1000 SAIYAN tokens
_burnedSupply = 0;
}
/**
* @dev Returns the name of the token.
*/
function name() public view returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view 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 {_setupDecimals} is
* called.
*
* 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 returns (uint256) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
/**
* @dev Returns the amount of burned tokens.
*/
function burnedSupply() public view returns (uint256) {
return _burnedSupply;
}
/**
* @dev Returns the burnrate.
*/
function burnRate() public view returns (uint256) {
return _burnRate;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view 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-transfer}.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function burn(uint256 amount) public virtual returns (bool) {
_burn(_msgSender(), amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
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");
uint256 amount_burn = amount.mul(_burnRate).div(100);
uint256 amount_send = amount.sub(amount_burn);
require(amount == amount_send + amount_burn, "Burn value invalid");
_burn(sender, amount_burn);
amount = amount_send;
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
_burnedSupply = _burnedSupply.add(amount);
emit Transfer(account, address(0), amount);
}
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);
}
function _setupBurnrate(uint8 burnrate_) internal virtual {
_burnRate = burnrate_;
}
function _beforeTokenTransfer(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 guidelines: functions revert instead
* of 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 | burnedSupply | function burnedSupply() public view returns (uint256) {
return _burnedSupply;
}
| /**
* @dev Returns the amount of burned tokens.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
2455,
2553
]
} | 2,067 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | ERC20 | contract ERC20 is Context, IERC20 {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
uint256 private _burnedSupply;
uint256 private _burnRate;
string private _name;
string private _symbol;
uint256 private _decimals;
/**
* @dev Sets the values for {name} and {symbol}, initializes {decimals} with
* a default value of 18.
*
* To select a different value for {decimals}, use {_setupDecimals}.
*
* All three of these values are immutable: they can only be set once during
* construction.
*/
constructor (string memory name, string memory symbol, uint256 decimals, uint256 burnrate, uint256 initSupply) public {
_name = name;
_symbol = symbol;
_decimals = decimals;
_burnRate = burnrate;
_totalSupply = 0;
_mint(msg.sender, initSupply*(10**_decimals)); // initial 1000 SAIYAN tokens
_burnedSupply = 0;
}
/**
* @dev Returns the name of the token.
*/
function name() public view returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view 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 {_setupDecimals} is
* called.
*
* 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 returns (uint256) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
/**
* @dev Returns the amount of burned tokens.
*/
function burnedSupply() public view returns (uint256) {
return _burnedSupply;
}
/**
* @dev Returns the burnrate.
*/
function burnRate() public view returns (uint256) {
return _burnRate;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view 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-transfer}.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function burn(uint256 amount) public virtual returns (bool) {
_burn(_msgSender(), amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
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");
uint256 amount_burn = amount.mul(_burnRate).div(100);
uint256 amount_send = amount.sub(amount_burn);
require(amount == amount_send + amount_burn, "Burn value invalid");
_burn(sender, amount_burn);
amount = amount_send;
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
_burnedSupply = _burnedSupply.add(amount);
emit Transfer(account, address(0), amount);
}
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);
}
function _setupBurnrate(uint8 burnrate_) internal virtual {
_burnRate = burnrate_;
}
function _beforeTokenTransfer(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 guidelines: functions revert instead
* of 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 | burnRate | function burnRate() public view returns (uint256) {
return _burnRate;
}
| /**
* @dev Returns the burnrate.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
2609,
2699
]
} | 2,068 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | ERC20 | contract ERC20 is Context, IERC20 {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
uint256 private _burnedSupply;
uint256 private _burnRate;
string private _name;
string private _symbol;
uint256 private _decimals;
/**
* @dev Sets the values for {name} and {symbol}, initializes {decimals} with
* a default value of 18.
*
* To select a different value for {decimals}, use {_setupDecimals}.
*
* All three of these values are immutable: they can only be set once during
* construction.
*/
constructor (string memory name, string memory symbol, uint256 decimals, uint256 burnrate, uint256 initSupply) public {
_name = name;
_symbol = symbol;
_decimals = decimals;
_burnRate = burnrate;
_totalSupply = 0;
_mint(msg.sender, initSupply*(10**_decimals)); // initial 1000 SAIYAN tokens
_burnedSupply = 0;
}
/**
* @dev Returns the name of the token.
*/
function name() public view returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view 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 {_setupDecimals} is
* called.
*
* 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 returns (uint256) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
/**
* @dev Returns the amount of burned tokens.
*/
function burnedSupply() public view returns (uint256) {
return _burnedSupply;
}
/**
* @dev Returns the burnrate.
*/
function burnRate() public view returns (uint256) {
return _burnRate;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view 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-transfer}.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function burn(uint256 amount) public virtual returns (bool) {
_burn(_msgSender(), amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
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");
uint256 amount_burn = amount.mul(_burnRate).div(100);
uint256 amount_send = amount.sub(amount_burn);
require(amount == amount_send + amount_burn, "Burn value invalid");
_burn(sender, amount_burn);
amount = amount_send;
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
_burnedSupply = _burnedSupply.add(amount);
emit Transfer(account, address(0), amount);
}
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);
}
function _setupBurnrate(uint8 burnrate_) internal virtual {
_burnRate = burnrate_;
}
function _beforeTokenTransfer(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 guidelines: functions revert instead
* of 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 override returns (uint256) {
return _balances[account];
}
| /**
* @dev See {IERC20-balanceOf}.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
2757,
2881
]
} | 2,069 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | ERC20 | contract ERC20 is Context, IERC20 {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
uint256 private _burnedSupply;
uint256 private _burnRate;
string private _name;
string private _symbol;
uint256 private _decimals;
/**
* @dev Sets the values for {name} and {symbol}, initializes {decimals} with
* a default value of 18.
*
* To select a different value for {decimals}, use {_setupDecimals}.
*
* All three of these values are immutable: they can only be set once during
* construction.
*/
constructor (string memory name, string memory symbol, uint256 decimals, uint256 burnrate, uint256 initSupply) public {
_name = name;
_symbol = symbol;
_decimals = decimals;
_burnRate = burnrate;
_totalSupply = 0;
_mint(msg.sender, initSupply*(10**_decimals)); // initial 1000 SAIYAN tokens
_burnedSupply = 0;
}
/**
* @dev Returns the name of the token.
*/
function name() public view returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view 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 {_setupDecimals} is
* called.
*
* 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 returns (uint256) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
/**
* @dev Returns the amount of burned tokens.
*/
function burnedSupply() public view returns (uint256) {
return _burnedSupply;
}
/**
* @dev Returns the burnrate.
*/
function burnRate() public view returns (uint256) {
return _burnRate;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view 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-transfer}.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function burn(uint256 amount) public virtual returns (bool) {
_burn(_msgSender(), amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
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");
uint256 amount_burn = amount.mul(_burnRate).div(100);
uint256 amount_send = amount.sub(amount_burn);
require(amount == amount_send + amount_burn, "Burn value invalid");
_burn(sender, amount_burn);
amount = amount_send;
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
_burnedSupply = _burnedSupply.add(amount);
emit Transfer(account, address(0), amount);
}
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);
}
function _setupBurnrate(uint8 burnrate_) internal virtual {
_burnRate = burnrate_;
}
function _beforeTokenTransfer(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 guidelines: functions revert instead
* of 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 | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
3089,
3269
]
} | 2,070 |
CROWED | CROWED.sol | 0x7216ae77b12fdcf250caff22b252bdeb3f188e35 | Solidity | ERC20 | contract ERC20 is Context, IERC20 {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
uint256 private _burnedSupply;
uint256 private _burnRate;
string private _name;
string private _symbol;
uint256 private _decimals;
/**
* @dev Sets the values for {name} and {symbol}, initializes {decimals} with
* a default value of 18.
*
* To select a different value for {decimals}, use {_setupDecimals}.
*
* All three of these values are immutable: they can only be set once during
* construction.
*/
constructor (string memory name, string memory symbol, uint256 decimals, uint256 burnrate, uint256 initSupply) public {
_name = name;
_symbol = symbol;
_decimals = decimals;
_burnRate = burnrate;
_totalSupply = 0;
_mint(msg.sender, initSupply*(10**_decimals)); // initial 1000 SAIYAN tokens
_burnedSupply = 0;
}
/**
* @dev Returns the name of the token.
*/
function name() public view returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view 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 {_setupDecimals} is
* called.
*
* 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 returns (uint256) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
/**
* @dev Returns the amount of burned tokens.
*/
function burnedSupply() public view returns (uint256) {
return _burnedSupply;
}
/**
* @dev Returns the burnrate.
*/
function burnRate() public view returns (uint256) {
return _burnRate;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view 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-transfer}.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function burn(uint256 amount) public virtual returns (bool) {
_burn(_msgSender(), amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
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");
uint256 amount_burn = amount.mul(_burnRate).div(100);
uint256 amount_send = amount.sub(amount_burn);
require(amount == amount_send + amount_burn, "Burn value invalid");
_burn(sender, amount_burn);
amount = amount_send;
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
_burnedSupply = _burnedSupply.add(amount);
emit Transfer(account, address(0), amount);
}
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);
}
function _setupBurnrate(uint8 burnrate_) internal virtual {
_burnRate = burnrate_;
}
function _beforeTokenTransfer(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 guidelines: functions revert instead
* of 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(uint256 amount) public virtual returns (bool) {
_burn(_msgSender(), amount);
return true;
}
| /**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | GNU GPLv2 | ipfs://2c46401db6fba9a9044d2a9ef4a783487fdd694901d8f835f40463f41db7374a | {
"func_code_index": [
3475,
3608
]
} | 2,071 |
Token | Token.sol | 0xfb28540d3d8d395ea2951bd3c83034b20c2225c0 | Solidity | ERC20 | interface ERC20 {
//Methods
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function allowance(address owner, address spender) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
//Events
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
} | totalSupply | function totalSupply() external view returns (uint256);
| //Methods | LineComment | v0.8.6+commit.11564f7e | MIT | {
"func_code_index": [
34,
93
]
} | 2,072 |
|||
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | SafeMath | library SafeMath {
/**
* @dev Multiplies two unsigned integers, 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.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b);
return c;
}
/**
* @dev Integer division of two unsigned integers 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);
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 unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a);
uint256 c = a - b;
return c;
}
/**
* @dev Adds two unsigned integers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a);
return c;
}
/**
* @dev Divides two unsigned integers 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);
return a % b;
}
} | /**
* @title SafeMath
* @dev Unsigned 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.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b);
return c;
}
| /**
* @dev Multiplies two unsigned integers, reverts on overflow.
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
106,
544
]
} | 2,073 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | SafeMath | library SafeMath {
/**
* @dev Multiplies two unsigned integers, 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.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b);
return c;
}
/**
* @dev Integer division of two unsigned integers 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);
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 unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a);
uint256 c = a - b;
return c;
}
/**
* @dev Adds two unsigned integers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a);
return c;
}
/**
* @dev Divides two unsigned integers 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);
return a % b;
}
} | /**
* @title SafeMath
* @dev Unsigned 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);
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 unsigned integers truncating the quotient, reverts on division by zero.
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
674,
982
]
} | 2,074 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | SafeMath | library SafeMath {
/**
* @dev Multiplies two unsigned integers, 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.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b);
return c;
}
/**
* @dev Integer division of two unsigned integers 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);
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 unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a);
uint256 c = a - b;
return c;
}
/**
* @dev Adds two unsigned integers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a);
return c;
}
/**
* @dev Divides two unsigned integers 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);
return a % b;
}
} | /**
* @title SafeMath
* @dev Unsigned math operations with safety checks that revert on error
*/ | NatSpecMultiLine | sub | function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a);
uint256 c = a - b;
return c;
}
| /**
* @dev Subtracts two unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
1115,
1270
]
} | 2,075 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | SafeMath | library SafeMath {
/**
* @dev Multiplies two unsigned integers, 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.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b);
return c;
}
/**
* @dev Integer division of two unsigned integers 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);
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 unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a);
uint256 c = a - b;
return c;
}
/**
* @dev Adds two unsigned integers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a);
return c;
}
/**
* @dev Divides two unsigned integers 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);
return a % b;
}
} | /**
* @title SafeMath
* @dev Unsigned 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);
return c;
}
| /**
* @dev Adds two unsigned integers, reverts on overflow.
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
1353,
1508
]
} | 2,076 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | SafeMath | library SafeMath {
/**
* @dev Multiplies two unsigned integers, 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.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b);
return c;
}
/**
* @dev Integer division of two unsigned integers 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);
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 unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a);
uint256 c = a - b;
return c;
}
/**
* @dev Adds two unsigned integers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a);
return c;
}
/**
* @dev Divides two unsigned integers 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);
return a % b;
}
} | /**
* @title SafeMath
* @dev Unsigned math operations with safety checks that revert on error
*/ | NatSpecMultiLine | mod | function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b != 0);
return a % b;
}
| /**
* @dev Divides two unsigned integers and returns the remainder (unsigned integer modulo),
* reverts when dividing by zero.
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
1664,
1793
]
} | 2,077 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | ERC20 | contract ERC20 is IERC20 {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowed;
uint256 private _totalSupply;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
/**
* @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)
{
return _allowed[owner][spender];
}
/**
* @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) {
_transfer(msg.sender, 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));
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/**
* @dev Transfer tokens from one address to another.
* Note that while this function emits an Approval event, this is not required as per the specification,
* and other compliant implementations may not emit the event.
* @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)
{
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
_transfer(from, to, value);
emit Approval(from, msg.sender, _allowed[from][msg.sender]);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a 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
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param addedValue The amount of tokens to increase the allowance by.
*/
function increaseAllowance(address spender, uint256 addedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(
addedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed_[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(
subtractedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Transfer token for a specified addresses
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
/**
* @dev Internal function that mints an amount of the token and assigns it to
* an account. This encapsulates the modification of balances such that the
* proper events are emitted.
* @param value The amount that will be created.
*/
function _mint(uint256 value) internal {
require(msg.sender != address(0));
_totalSupply = _totalSupply.add(value);
_balances[msg.sender] = _balances[msg.sender].add(value);
emit Transfer(address(0), msg.sender, value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account.
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burn(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account, deducting from the sender's allowance for said account. Uses the
* internal burn function.
* Emits an Approval event (reflecting the reduced allowance).
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burnFrom(address account, uint256 value) internal {
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(
value
);
_burn(account, value);
emit Approval(account, msg.sender, _allowed[account][msg.sender]);
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
* Originally based on code by FirstBlood:
* https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*
* This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for
* all accounts just by listening to said events. Note that this isn't required by the specification, and other
* compliant implementations may not do it.
*/ | NatSpecMultiLine | totalSupply | function totalSupply() public view returns (uint256) {
return _totalSupply;
}
| /**
* @dev Total number of tokens in existence
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
294,
390
]
} | 2,078 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | ERC20 | contract ERC20 is IERC20 {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowed;
uint256 private _totalSupply;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
/**
* @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)
{
return _allowed[owner][spender];
}
/**
* @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) {
_transfer(msg.sender, 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));
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/**
* @dev Transfer tokens from one address to another.
* Note that while this function emits an Approval event, this is not required as per the specification,
* and other compliant implementations may not emit the event.
* @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)
{
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
_transfer(from, to, value);
emit Approval(from, msg.sender, _allowed[from][msg.sender]);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a 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
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param addedValue The amount of tokens to increase the allowance by.
*/
function increaseAllowance(address spender, uint256 addedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(
addedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed_[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(
subtractedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Transfer token for a specified addresses
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
/**
* @dev Internal function that mints an amount of the token and assigns it to
* an account. This encapsulates the modification of balances such that the
* proper events are emitted.
* @param value The amount that will be created.
*/
function _mint(uint256 value) internal {
require(msg.sender != address(0));
_totalSupply = _totalSupply.add(value);
_balances[msg.sender] = _balances[msg.sender].add(value);
emit Transfer(address(0), msg.sender, value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account.
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burn(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account, deducting from the sender's allowance for said account. Uses the
* internal burn function.
* Emits an Approval event (reflecting the reduced allowance).
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burnFrom(address account, uint256 value) internal {
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(
value
);
_burn(account, value);
emit Approval(account, msg.sender, _allowed[account][msg.sender]);
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
* Originally based on code by FirstBlood:
* https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*
* This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for
* all accounts just by listening to said events. Note that this isn't required by the specification, and other
* compliant implementations may not do it.
*/ | NatSpecMultiLine | balanceOf | function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
| /**
* @dev Gets the balance of the specified address.
* @param owner The address to query the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
605,
716
]
} | 2,079 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | ERC20 | contract ERC20 is IERC20 {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowed;
uint256 private _totalSupply;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
/**
* @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)
{
return _allowed[owner][spender];
}
/**
* @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) {
_transfer(msg.sender, 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));
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/**
* @dev Transfer tokens from one address to another.
* Note that while this function emits an Approval event, this is not required as per the specification,
* and other compliant implementations may not emit the event.
* @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)
{
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
_transfer(from, to, value);
emit Approval(from, msg.sender, _allowed[from][msg.sender]);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a 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
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param addedValue The amount of tokens to increase the allowance by.
*/
function increaseAllowance(address spender, uint256 addedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(
addedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed_[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(
subtractedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Transfer token for a specified addresses
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
/**
* @dev Internal function that mints an amount of the token and assigns it to
* an account. This encapsulates the modification of balances such that the
* proper events are emitted.
* @param value The amount that will be created.
*/
function _mint(uint256 value) internal {
require(msg.sender != address(0));
_totalSupply = _totalSupply.add(value);
_balances[msg.sender] = _balances[msg.sender].add(value);
emit Transfer(address(0), msg.sender, value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account.
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burn(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account, deducting from the sender's allowance for said account. Uses the
* internal burn function.
* Emits an Approval event (reflecting the reduced allowance).
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burnFrom(address account, uint256 value) internal {
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(
value
);
_burn(account, value);
emit Approval(account, msg.sender, _allowed[account][msg.sender]);
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
* Originally based on code by FirstBlood:
* https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*
* This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for
* all accounts just by listening to said events. Note that this isn't required by the specification, and other
* compliant implementations may not do it.
*/ | NatSpecMultiLine | allowance | function allowance(address owner, address spender)
public
view
returns (uint256)
{
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 | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
1050,
1218
]
} | 2,080 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | ERC20 | contract ERC20 is IERC20 {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowed;
uint256 private _totalSupply;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
/**
* @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)
{
return _allowed[owner][spender];
}
/**
* @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) {
_transfer(msg.sender, 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));
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/**
* @dev Transfer tokens from one address to another.
* Note that while this function emits an Approval event, this is not required as per the specification,
* and other compliant implementations may not emit the event.
* @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)
{
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
_transfer(from, to, value);
emit Approval(from, msg.sender, _allowed[from][msg.sender]);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a 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
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param addedValue The amount of tokens to increase the allowance by.
*/
function increaseAllowance(address spender, uint256 addedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(
addedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed_[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(
subtractedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Transfer token for a specified addresses
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
/**
* @dev Internal function that mints an amount of the token and assigns it to
* an account. This encapsulates the modification of balances such that the
* proper events are emitted.
* @param value The amount that will be created.
*/
function _mint(uint256 value) internal {
require(msg.sender != address(0));
_totalSupply = _totalSupply.add(value);
_balances[msg.sender] = _balances[msg.sender].add(value);
emit Transfer(address(0), msg.sender, value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account.
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burn(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account, deducting from the sender's allowance for said account. Uses the
* internal burn function.
* Emits an Approval event (reflecting the reduced allowance).
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burnFrom(address account, uint256 value) internal {
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(
value
);
_burn(account, value);
emit Approval(account, msg.sender, _allowed[account][msg.sender]);
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
* Originally based on code by FirstBlood:
* https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*
* This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for
* all accounts just by listening to said events. Note that this isn't required by the specification, and other
* compliant implementations may not do it.
*/ | NatSpecMultiLine | transfer | function transfer(address to, uint256 value) public returns (bool) {
_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 | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
1388,
1533
]
} | 2,081 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | ERC20 | contract ERC20 is IERC20 {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowed;
uint256 private _totalSupply;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
/**
* @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)
{
return _allowed[owner][spender];
}
/**
* @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) {
_transfer(msg.sender, 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));
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/**
* @dev Transfer tokens from one address to another.
* Note that while this function emits an Approval event, this is not required as per the specification,
* and other compliant implementations may not emit the event.
* @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)
{
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
_transfer(from, to, value);
emit Approval(from, msg.sender, _allowed[from][msg.sender]);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a 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
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param addedValue The amount of tokens to increase the allowance by.
*/
function increaseAllowance(address spender, uint256 addedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(
addedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed_[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(
subtractedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Transfer token for a specified addresses
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
/**
* @dev Internal function that mints an amount of the token and assigns it to
* an account. This encapsulates the modification of balances such that the
* proper events are emitted.
* @param value The amount that will be created.
*/
function _mint(uint256 value) internal {
require(msg.sender != address(0));
_totalSupply = _totalSupply.add(value);
_balances[msg.sender] = _balances[msg.sender].add(value);
emit Transfer(address(0), msg.sender, value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account.
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burn(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account, deducting from the sender's allowance for said account. Uses the
* internal burn function.
* Emits an Approval event (reflecting the reduced allowance).
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burnFrom(address account, uint256 value) internal {
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(
value
);
_burn(account, value);
emit Approval(account, msg.sender, _allowed[account][msg.sender]);
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
* Originally based on code by FirstBlood:
* https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*
* This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for
* all accounts just by listening to said events. Note that this isn't required by the specification, and other
* compliant implementations may not do it.
*/ | NatSpecMultiLine | approve | function approve(address spender, uint256 value) public returns (bool) {
require(spender != address(0));
_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 | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
2175,
2424
]
} | 2,082 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | ERC20 | contract ERC20 is IERC20 {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowed;
uint256 private _totalSupply;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
/**
* @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)
{
return _allowed[owner][spender];
}
/**
* @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) {
_transfer(msg.sender, 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));
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/**
* @dev Transfer tokens from one address to another.
* Note that while this function emits an Approval event, this is not required as per the specification,
* and other compliant implementations may not emit the event.
* @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)
{
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
_transfer(from, to, value);
emit Approval(from, msg.sender, _allowed[from][msg.sender]);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a 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
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param addedValue The amount of tokens to increase the allowance by.
*/
function increaseAllowance(address spender, uint256 addedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(
addedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed_[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(
subtractedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Transfer token for a specified addresses
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
/**
* @dev Internal function that mints an amount of the token and assigns it to
* an account. This encapsulates the modification of balances such that the
* proper events are emitted.
* @param value The amount that will be created.
*/
function _mint(uint256 value) internal {
require(msg.sender != address(0));
_totalSupply = _totalSupply.add(value);
_balances[msg.sender] = _balances[msg.sender].add(value);
emit Transfer(address(0), msg.sender, value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account.
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burn(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account, deducting from the sender's allowance for said account. Uses the
* internal burn function.
* Emits an Approval event (reflecting the reduced allowance).
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burnFrom(address account, uint256 value) internal {
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(
value
);
_burn(account, value);
emit Approval(account, msg.sender, _allowed[account][msg.sender]);
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
* Originally based on code by FirstBlood:
* https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*
* This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for
* all accounts just by listening to said events. Note that this isn't required by the specification, and other
* compliant implementations may not do it.
*/ | NatSpecMultiLine | transferFrom | function transferFrom(address from, address to, uint256 value)
public
returns (bool)
{
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
_transfer(from, to, value);
emit Approval(from, msg.sender, _allowed[from][msg.sender]);
return true;
}
| /**
* @dev Transfer tokens from one address to another.
* Note that while this function emits an Approval event, this is not required as per the specification,
* and other compliant implementations may not emit the event.
* @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 | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
2892,
3219
]
} | 2,083 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | ERC20 | contract ERC20 is IERC20 {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowed;
uint256 private _totalSupply;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
/**
* @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)
{
return _allowed[owner][spender];
}
/**
* @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) {
_transfer(msg.sender, 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));
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/**
* @dev Transfer tokens from one address to another.
* Note that while this function emits an Approval event, this is not required as per the specification,
* and other compliant implementations may not emit the event.
* @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)
{
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
_transfer(from, to, value);
emit Approval(from, msg.sender, _allowed[from][msg.sender]);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a 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
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param addedValue The amount of tokens to increase the allowance by.
*/
function increaseAllowance(address spender, uint256 addedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(
addedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed_[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(
subtractedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Transfer token for a specified addresses
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
/**
* @dev Internal function that mints an amount of the token and assigns it to
* an account. This encapsulates the modification of balances such that the
* proper events are emitted.
* @param value The amount that will be created.
*/
function _mint(uint256 value) internal {
require(msg.sender != address(0));
_totalSupply = _totalSupply.add(value);
_balances[msg.sender] = _balances[msg.sender].add(value);
emit Transfer(address(0), msg.sender, value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account.
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burn(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account, deducting from the sender's allowance for said account. Uses the
* internal burn function.
* Emits an Approval event (reflecting the reduced allowance).
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burnFrom(address account, uint256 value) internal {
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(
value
);
_burn(account, value);
emit Approval(account, msg.sender, _allowed[account][msg.sender]);
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
* Originally based on code by FirstBlood:
* https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*
* This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for
* all accounts just by listening to said events. Note that this isn't required by the specification, and other
* compliant implementations may not do it.
*/ | NatSpecMultiLine | increaseAllowance | function increaseAllowance(address spender, uint256 addedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(
addedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
| /**
* @dev Increase the amount of tokens that an owner allowed to a 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
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param addedValue The amount of tokens to increase the allowance by.
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
3729,
4104
]
} | 2,084 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | ERC20 | contract ERC20 is IERC20 {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowed;
uint256 private _totalSupply;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
/**
* @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)
{
return _allowed[owner][spender];
}
/**
* @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) {
_transfer(msg.sender, 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));
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/**
* @dev Transfer tokens from one address to another.
* Note that while this function emits an Approval event, this is not required as per the specification,
* and other compliant implementations may not emit the event.
* @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)
{
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
_transfer(from, to, value);
emit Approval(from, msg.sender, _allowed[from][msg.sender]);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a 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
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param addedValue The amount of tokens to increase the allowance by.
*/
function increaseAllowance(address spender, uint256 addedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(
addedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed_[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(
subtractedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Transfer token for a specified addresses
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
/**
* @dev Internal function that mints an amount of the token and assigns it to
* an account. This encapsulates the modification of balances such that the
* proper events are emitted.
* @param value The amount that will be created.
*/
function _mint(uint256 value) internal {
require(msg.sender != address(0));
_totalSupply = _totalSupply.add(value);
_balances[msg.sender] = _balances[msg.sender].add(value);
emit Transfer(address(0), msg.sender, value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account.
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burn(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account, deducting from the sender's allowance for said account. Uses the
* internal burn function.
* Emits an Approval event (reflecting the reduced allowance).
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burnFrom(address account, uint256 value) internal {
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(
value
);
_burn(account, value);
emit Approval(account, msg.sender, _allowed[account][msg.sender]);
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
* Originally based on code by FirstBlood:
* https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*
* This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for
* all accounts just by listening to said events. Note that this isn't required by the specification, and other
* compliant implementations may not do it.
*/ | NatSpecMultiLine | decreaseAllowance | function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(
subtractedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
| /**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed_[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param subtractedValue The amount of tokens to decrease the allowance by.
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
4619,
5004
]
} | 2,085 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | ERC20 | contract ERC20 is IERC20 {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowed;
uint256 private _totalSupply;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
/**
* @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)
{
return _allowed[owner][spender];
}
/**
* @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) {
_transfer(msg.sender, 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));
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/**
* @dev Transfer tokens from one address to another.
* Note that while this function emits an Approval event, this is not required as per the specification,
* and other compliant implementations may not emit the event.
* @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)
{
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
_transfer(from, to, value);
emit Approval(from, msg.sender, _allowed[from][msg.sender]);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a 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
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param addedValue The amount of tokens to increase the allowance by.
*/
function increaseAllowance(address spender, uint256 addedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(
addedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed_[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(
subtractedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Transfer token for a specified addresses
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
/**
* @dev Internal function that mints an amount of the token and assigns it to
* an account. This encapsulates the modification of balances such that the
* proper events are emitted.
* @param value The amount that will be created.
*/
function _mint(uint256 value) internal {
require(msg.sender != address(0));
_totalSupply = _totalSupply.add(value);
_balances[msg.sender] = _balances[msg.sender].add(value);
emit Transfer(address(0), msg.sender, value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account.
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burn(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account, deducting from the sender's allowance for said account. Uses the
* internal burn function.
* Emits an Approval event (reflecting the reduced allowance).
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burnFrom(address account, uint256 value) internal {
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(
value
);
_burn(account, value);
emit Approval(account, msg.sender, _allowed[account][msg.sender]);
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
* Originally based on code by FirstBlood:
* https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*
* This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for
* all accounts just by listening to said events. Note that this isn't required by the specification, and other
* compliant implementations may not do it.
*/ | NatSpecMultiLine | _transfer | function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
| /**
* @dev Transfer token for a specified addresses
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
5226,
5493
]
} | 2,086 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | ERC20 | contract ERC20 is IERC20 {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowed;
uint256 private _totalSupply;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
/**
* @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)
{
return _allowed[owner][spender];
}
/**
* @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) {
_transfer(msg.sender, 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));
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/**
* @dev Transfer tokens from one address to another.
* Note that while this function emits an Approval event, this is not required as per the specification,
* and other compliant implementations may not emit the event.
* @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)
{
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
_transfer(from, to, value);
emit Approval(from, msg.sender, _allowed[from][msg.sender]);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a 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
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param addedValue The amount of tokens to increase the allowance by.
*/
function increaseAllowance(address spender, uint256 addedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(
addedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed_[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(
subtractedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Transfer token for a specified addresses
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
/**
* @dev Internal function that mints an amount of the token and assigns it to
* an account. This encapsulates the modification of balances such that the
* proper events are emitted.
* @param value The amount that will be created.
*/
function _mint(uint256 value) internal {
require(msg.sender != address(0));
_totalSupply = _totalSupply.add(value);
_balances[msg.sender] = _balances[msg.sender].add(value);
emit Transfer(address(0), msg.sender, value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account.
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burn(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account, deducting from the sender's allowance for said account. Uses the
* internal burn function.
* Emits an Approval event (reflecting the reduced allowance).
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burnFrom(address account, uint256 value) internal {
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(
value
);
_burn(account, value);
emit Approval(account, msg.sender, _allowed[account][msg.sender]);
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
* Originally based on code by FirstBlood:
* https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*
* This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for
* all accounts just by listening to said events. Note that this isn't required by the specification, and other
* compliant implementations may not do it.
*/ | NatSpecMultiLine | _mint | function _mint(uint256 value) internal {
require(msg.sender != address(0));
_totalSupply = _totalSupply.add(value);
_balances[msg.sender] = _balances[msg.sender].add(value);
emit Transfer(address(0), msg.sender, value);
}
| /**
* @dev Internal function that mints an amount of the token and assigns it to
* an account. This encapsulates the modification of balances such that the
* proper events are emitted.
* @param value The amount that will be created.
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
5767,
6036
]
} | 2,087 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | ERC20 | contract ERC20 is IERC20 {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowed;
uint256 private _totalSupply;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
/**
* @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)
{
return _allowed[owner][spender];
}
/**
* @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) {
_transfer(msg.sender, 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));
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/**
* @dev Transfer tokens from one address to another.
* Note that while this function emits an Approval event, this is not required as per the specification,
* and other compliant implementations may not emit the event.
* @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)
{
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
_transfer(from, to, value);
emit Approval(from, msg.sender, _allowed[from][msg.sender]);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a 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
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param addedValue The amount of tokens to increase the allowance by.
*/
function increaseAllowance(address spender, uint256 addedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(
addedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed_[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(
subtractedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Transfer token for a specified addresses
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
/**
* @dev Internal function that mints an amount of the token and assigns it to
* an account. This encapsulates the modification of balances such that the
* proper events are emitted.
* @param value The amount that will be created.
*/
function _mint(uint256 value) internal {
require(msg.sender != address(0));
_totalSupply = _totalSupply.add(value);
_balances[msg.sender] = _balances[msg.sender].add(value);
emit Transfer(address(0), msg.sender, value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account.
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burn(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account, deducting from the sender's allowance for said account. Uses the
* internal burn function.
* Emits an Approval event (reflecting the reduced allowance).
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burnFrom(address account, uint256 value) internal {
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(
value
);
_burn(account, value);
emit Approval(account, msg.sender, _allowed[account][msg.sender]);
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
* Originally based on code by FirstBlood:
* https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*
* This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for
* all accounts just by listening to said events. Note that this isn't required by the specification, and other
* compliant implementations may not do it.
*/ | NatSpecMultiLine | _burn | function _burn(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
| /**
* @dev Internal function that burns an amount of the token of a given
* account.
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
6265,
6539
]
} | 2,088 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | ERC20 | contract ERC20 is IERC20 {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowed;
uint256 private _totalSupply;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
/**
* @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)
{
return _allowed[owner][spender];
}
/**
* @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) {
_transfer(msg.sender, 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));
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/**
* @dev Transfer tokens from one address to another.
* Note that while this function emits an Approval event, this is not required as per the specification,
* and other compliant implementations may not emit the event.
* @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)
{
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
_transfer(from, to, value);
emit Approval(from, msg.sender, _allowed[from][msg.sender]);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a 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
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param addedValue The amount of tokens to increase the allowance by.
*/
function increaseAllowance(address spender, uint256 addedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(
addedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed_[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(
subtractedValue
);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Transfer token for a specified addresses
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
/**
* @dev Internal function that mints an amount of the token and assigns it to
* an account. This encapsulates the modification of balances such that the
* proper events are emitted.
* @param value The amount that will be created.
*/
function _mint(uint256 value) internal {
require(msg.sender != address(0));
_totalSupply = _totalSupply.add(value);
_balances[msg.sender] = _balances[msg.sender].add(value);
emit Transfer(address(0), msg.sender, value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account.
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burn(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account, deducting from the sender's allowance for said account. Uses the
* internal burn function.
* Emits an Approval event (reflecting the reduced allowance).
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burnFrom(address account, uint256 value) internal {
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(
value
);
_burn(account, value);
emit Approval(account, msg.sender, _allowed[account][msg.sender]);
}
} | /**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
* Originally based on code by FirstBlood:
* https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*
* This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for
* all accounts just by listening to said events. Note that this isn't required by the specification, and other
* compliant implementations may not do it.
*/ | NatSpecMultiLine | _burnFrom | function _burnFrom(address account, uint256 value) internal {
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(
value
);
_burn(account, value);
emit Approval(account, msg.sender, _allowed[account][msg.sender]);
}
| /**
* @dev Internal function that burns an amount of the token of a given
* account, deducting from the sender's allowance for said account. Uses the
* internal burn function.
* Emits an Approval event (reflecting the reduced allowance).
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
6933,
7221
]
} | 2,089 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | Roles | library Roles {
struct Role {
mapping(address => bool) bearer;
}
/**
* @dev give an account access to this role
*/
function add(Role storage role, address account) internal {
require(account != address(0));
require(!has(role, account));
role.bearer[account] = true;
}
/**
* @dev remove an account's access to this role
*/
function remove(Role storage role, address account) internal {
require(account != address(0));
require(has(role, account));
role.bearer[account] = false;
}
/**
* @dev check if an account has this role
* @return bool
*/
function has(Role storage role, address account)
internal
view
returns (bool)
{
require(account != address(0));
return role.bearer[account];
}
} | /**
* @title Roles
* @dev Library for managing addresses assigned to a Role.
*/ | NatSpecMultiLine | add | function add(Role storage role, address account) internal {
require(account != address(0));
require(!has(role, account));
role.bearer[account] = true;
}
| /**
* @dev give an account access to this role
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
154,
345
]
} | 2,090 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | Roles | library Roles {
struct Role {
mapping(address => bool) bearer;
}
/**
* @dev give an account access to this role
*/
function add(Role storage role, address account) internal {
require(account != address(0));
require(!has(role, account));
role.bearer[account] = true;
}
/**
* @dev remove an account's access to this role
*/
function remove(Role storage role, address account) internal {
require(account != address(0));
require(has(role, account));
role.bearer[account] = false;
}
/**
* @dev check if an account has this role
* @return bool
*/
function has(Role storage role, address account)
internal
view
returns (bool)
{
require(account != address(0));
return role.bearer[account];
}
} | /**
* @title Roles
* @dev Library for managing addresses assigned to a Role.
*/ | NatSpecMultiLine | remove | function remove(Role storage role, address account) internal {
require(account != address(0));
require(has(role, account));
role.bearer[account] = false;
}
| /**
* @dev remove an account's access to this role
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
419,
613
]
} | 2,091 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | Roles | library Roles {
struct Role {
mapping(address => bool) bearer;
}
/**
* @dev give an account access to this role
*/
function add(Role storage role, address account) internal {
require(account != address(0));
require(!has(role, account));
role.bearer[account] = true;
}
/**
* @dev remove an account's access to this role
*/
function remove(Role storage role, address account) internal {
require(account != address(0));
require(has(role, account));
role.bearer[account] = false;
}
/**
* @dev check if an account has this role
* @return bool
*/
function has(Role storage role, address account)
internal
view
returns (bool)
{
require(account != address(0));
return role.bearer[account];
}
} | /**
* @title Roles
* @dev Library for managing addresses assigned to a Role.
*/ | NatSpecMultiLine | has | function has(Role storage role, address account)
internal
view
returns (bool)
{
require(account != address(0));
return role.bearer[account];
}
| /**
* @dev check if an account has this role
* @return bool
*/ | NatSpecMultiLine | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
702,
904
]
} | 2,092 |
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | ERC20Interface | interface ERC20Interface {
// Standard ERC-20 interface.
function transfer(address to, uint256 value) external returns (bool);
function approve(address spender, uint256 value) external returns (bool);
function transferFrom(address from, address to, uint256 value)
external
returns (bool);
function totalSupply() external view returns (uint256);
function balanceOf(address who) external view returns (uint256);
function allowance(address owner, address spender)
external
view
returns (uint256);
// Extension of ERC-20 interface to support supply adjustment.
function mint() external returns (bool);
function burn(address from, uint256 value) external returns (bool);
} | transfer | function transfer(address to, uint256 value) external returns (bool);
| // Standard ERC-20 interface. | LineComment | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
63,
137
]
} | 2,093 |
||
Bexpress | Bexpress.sol | 0xc002141f62961afa759f7b22aaeb151bf80a3d8d | Solidity | ERC20Interface | interface ERC20Interface {
// Standard ERC-20 interface.
function transfer(address to, uint256 value) external returns (bool);
function approve(address spender, uint256 value) external returns (bool);
function transferFrom(address from, address to, uint256 value)
external
returns (bool);
function totalSupply() external view returns (uint256);
function balanceOf(address who) external view returns (uint256);
function allowance(address owner, address spender)
external
view
returns (uint256);
// Extension of ERC-20 interface to support supply adjustment.
function mint() external returns (bool);
function burn(address from, uint256 value) external returns (bool);
} | mint | function mint() external returns (bool);
| // Extension of ERC-20 interface to support supply adjustment. | LineComment | v0.5.17+commit.d19bba13 | None | bzzr://cfefed105a08f450eba1a193f0c7cb37af76c84c4dc3c10269331305bff11870 | {
"func_code_index": [
655,
700
]
} | 2,094 |
||
ArtexToken | ArtexToken.sol | 0x7705faa34b16eb6d77dfc7812be2367ba6b0248e | Solidity | Crowdsale | contract Crowdsale is Owned, Stateful {
uint public etherPriceUSDWEI;
address public beneficiary;
uint public totalLimitUSDWEI;
uint public minimalSuccessUSDWEI;
uint public collectedUSDWEI;
uint public crowdsaleStartTime;
uint public crowdsaleFinishTime;
uint public tokenPriceUSDWEI = 100000000000000000;
struct Investor {
uint amountTokens;
uint amountWei;
}
struct BtcDeposit {
uint amountBTCWEI;
uint btcPriceUSDWEI;
address investor;
}
mapping(bytes32 => BtcDeposit) public btcDeposits;
mapping(address => Investor) public investors;
mapping(uint => address) public investorsIter;
uint public numberOfInvestors;
mapping(uint => address) public investorsToWithdrawIter;
uint public numberOfInvestorsToWithdraw;
function Crowdsale() payable Owned() {}
//abstract methods
function emitTokens(address _investor, uint _usdwei) internal returns(uint tokensToEmit);
function emitAdditionalTokens() internal;
function burnTokens(address _address, uint _amount) internal;
function() payable crowdsaleState limitNotExceeded crowdsaleNotFinished {
uint valueWEI = msg.value;
uint valueUSDWEI = valueWEI * etherPriceUSDWEI / 1 ether;
if (collectedUSDWEI + valueUSDWEI > totalLimitUSDWEI) { // don't need so much ether
valueUSDWEI = totalLimitUSDWEI - collectedUSDWEI;
valueWEI = valueUSDWEI * 1 ether / etherPriceUSDWEI;
uint weiToReturn = msg.value - valueWEI;
bool isSent = msg.sender.call.gas(3000000).value(weiToReturn)();
require(isSent);
collectedUSDWEI = totalLimitUSDWEI; // to be sure!
} else {
collectedUSDWEI += valueUSDWEI;
}
emitTokensFor(msg.sender, valueUSDWEI, valueWEI);
}
function depositUSD(address _to, uint _amountUSDWEI) external onlyOwner crowdsaleState limitNotExceeded crowdsaleNotFinished {
collectedUSDWEI += _amountUSDWEI;
emitTokensFor(_to, _amountUSDWEI, 0);
}
function depositBTC(address _to, uint _amountBTCWEI, uint _btcPriceUSDWEI, bytes32 _btcTxId) external onlyOwnerOrBtcOracle crowdsaleState limitNotExceeded crowdsaleNotFinished {
uint valueUSDWEI = _amountBTCWEI * _btcPriceUSDWEI / 1 ether;
BtcDeposit storage btcDep = btcDeposits[_btcTxId];
require(btcDep.amountBTCWEI == 0);
btcDep.amountBTCWEI = _amountBTCWEI;
btcDep.btcPriceUSDWEI = _btcPriceUSDWEI;
btcDep.investor = _to;
collectedUSDWEI += valueUSDWEI;
emitTokensFor(_to, valueUSDWEI, 0);
}
function emitTokensFor(address _investor, uint _valueUSDWEI, uint _valueWEI) internal {
var emittedTokens = emitTokens(_investor, _valueUSDWEI);
Investor storage inv = investors[_investor];
if (inv.amountTokens == 0) { // new investor
investorsIter[numberOfInvestors++] = _investor;
}
inv.amountTokens += emittedTokens;
if (state == State.Sale) {
inv.amountWei += _valueWEI;
}
}
function startPreSale(
address _beneficiary,
uint _etherPriceUSDWEI,
uint _totalLimitUSDWEI,
uint _crowdsaleDurationDays) external onlyOwner {
require(state == State.Initial);
crowdsaleStartTime = now;
beneficiary = _beneficiary;
etherPriceUSDWEI = _etherPriceUSDWEI;
totalLimitUSDWEI = _totalLimitUSDWEI;
crowdsaleFinishTime = now + _crowdsaleDurationDays * 1 days;
collectedUSDWEI = 0;
setState(State.PreSale);
}
function finishPreSale() public onlyOwner {
require(state == State.PreSale);
bool isSent = beneficiary.call.gas(3000000).value(this.balance)();
require(isSent);
setState(State.WaitingForSale);
}
function startSale(
address _beneficiary,
uint _etherPriceUSDWEI,
uint _totalLimitUSDWEI,
uint _crowdsaleDurationDays,
uint _minimalSuccessUSDWEI) external onlyOwner {
require(state == State.WaitingForSale);
crowdsaleStartTime = now;
beneficiary = _beneficiary;
etherPriceUSDWEI = _etherPriceUSDWEI;
totalLimitUSDWEI = _totalLimitUSDWEI;
crowdsaleFinishTime = now + _crowdsaleDurationDays * 1 days;
minimalSuccessUSDWEI = _minimalSuccessUSDWEI;
collectedUSDWEI = 0;
setState(State.Sale);
}
function failSale(uint _investorsToProcess) public {
require(state == State.Sale);
require(now >= crowdsaleFinishTime && collectedUSDWEI < minimalSuccessUSDWEI);
while (_investorsToProcess > 0 && numberOfInvestors > 0) {
address addr = investorsIter[--numberOfInvestors];
Investor memory inv = investors[addr];
burnTokens(addr, inv.amountTokens);
--_investorsToProcess;
delete investorsIter[numberOfInvestors];
investorsToWithdrawIter[numberOfInvestorsToWithdraw] = addr;
numberOfInvestorsToWithdraw++;
}
if (numberOfInvestors > 0) {
return;
}
setState(State.SaleFailed);
}
function completeSale(uint _investorsToProcess) public onlyOwner {
require(state == State.Sale);
require(collectedUSDWEI >= minimalSuccessUSDWEI);
while (_investorsToProcess > 0 && numberOfInvestors > 0) {
--numberOfInvestors;
--_investorsToProcess;
delete investors[investorsIter[numberOfInvestors]];
delete investorsIter[numberOfInvestors];
}
if (numberOfInvestors > 0) {
return;
}
emitAdditionalTokens();
bool isSent = beneficiary.call.gas(3000000).value(this.balance)();
require(isSent);
setState(State.CrowdsaleCompleted);
}
function setEtherPriceUSDWEI(uint _etherPriceUSDWEI) external onlyOwnerOrOracle {
etherPriceUSDWEI = _etherPriceUSDWEI;
}
function setBeneficiary(address _beneficiary) external onlyOwner() {
require(_beneficiary != 0);
beneficiary = _beneficiary;
}
// This function must be called by token holder in case of crowdsale failed
function withdrawBack() external saleFailedState {
returnInvestmentsToInternal(msg.sender);
}
function returnInvestments(uint _investorsToProcess) public saleFailedState {
while (_investorsToProcess > 0 && numberOfInvestorsToWithdraw > 0) {
address addr = investorsToWithdrawIter[--numberOfInvestorsToWithdraw];
delete investorsToWithdrawIter[numberOfInvestorsToWithdraw];
--_investorsToProcess;
returnInvestmentsToInternal(addr);
}
}
function returnInvestmentsTo(address _to) public saleFailedState {
returnInvestmentsToInternal(_to);
}
function returnInvestmentsToInternal(address _to) internal {
Investor memory inv = investors[_to];
uint value = inv.amountWei;
if (value > 0) {
delete investors[_to];
require(_to.call.gas(3000000).value(value)());
}
}
function withdrawFunds(uint _value) public onlyOwner {
require(state == State.PreSale || (state == State.Sale && collectedUSDWEI > minimalSuccessUSDWEI));
if (_value == 0) {
_value = this.balance;
}
bool isSent = beneficiary.call.gas(3000000).value(_value)();
require(isSent);
}
modifier crowdsaleNotFinished {
require(now < crowdsaleFinishTime);
_;
}
modifier limitNotExceeded {
require(collectedUSDWEI < totalLimitUSDWEI);
_;
}
modifier crowdsaleState {
require(state == State.PreSale || state == State.Sale);
_;
}
modifier saleFailedState {
require(state == State.SaleFailed);
_;
}
modifier completedSaleState {
require(state == State.CrowdsaleCompleted);
_;
}
} | emitTokens | function emitTokens(address _investor, uint _usdwei) internal returns(uint tokensToEmit);
| //abstract methods | LineComment | v0.4.18+commit.9cf6e910 | bzzr://06bbc0bf525ce858495eaf3a678c495345c4c11cbd3b9dac4cceec3427b0f5d2 | {
"func_code_index": [
941,
1035
]
} | 2,095 |
|||
ArtexToken | ArtexToken.sol | 0x7705faa34b16eb6d77dfc7812be2367ba6b0248e | Solidity | Crowdsale | contract Crowdsale is Owned, Stateful {
uint public etherPriceUSDWEI;
address public beneficiary;
uint public totalLimitUSDWEI;
uint public minimalSuccessUSDWEI;
uint public collectedUSDWEI;
uint public crowdsaleStartTime;
uint public crowdsaleFinishTime;
uint public tokenPriceUSDWEI = 100000000000000000;
struct Investor {
uint amountTokens;
uint amountWei;
}
struct BtcDeposit {
uint amountBTCWEI;
uint btcPriceUSDWEI;
address investor;
}
mapping(bytes32 => BtcDeposit) public btcDeposits;
mapping(address => Investor) public investors;
mapping(uint => address) public investorsIter;
uint public numberOfInvestors;
mapping(uint => address) public investorsToWithdrawIter;
uint public numberOfInvestorsToWithdraw;
function Crowdsale() payable Owned() {}
//abstract methods
function emitTokens(address _investor, uint _usdwei) internal returns(uint tokensToEmit);
function emitAdditionalTokens() internal;
function burnTokens(address _address, uint _amount) internal;
function() payable crowdsaleState limitNotExceeded crowdsaleNotFinished {
uint valueWEI = msg.value;
uint valueUSDWEI = valueWEI * etherPriceUSDWEI / 1 ether;
if (collectedUSDWEI + valueUSDWEI > totalLimitUSDWEI) { // don't need so much ether
valueUSDWEI = totalLimitUSDWEI - collectedUSDWEI;
valueWEI = valueUSDWEI * 1 ether / etherPriceUSDWEI;
uint weiToReturn = msg.value - valueWEI;
bool isSent = msg.sender.call.gas(3000000).value(weiToReturn)();
require(isSent);
collectedUSDWEI = totalLimitUSDWEI; // to be sure!
} else {
collectedUSDWEI += valueUSDWEI;
}
emitTokensFor(msg.sender, valueUSDWEI, valueWEI);
}
function depositUSD(address _to, uint _amountUSDWEI) external onlyOwner crowdsaleState limitNotExceeded crowdsaleNotFinished {
collectedUSDWEI += _amountUSDWEI;
emitTokensFor(_to, _amountUSDWEI, 0);
}
function depositBTC(address _to, uint _amountBTCWEI, uint _btcPriceUSDWEI, bytes32 _btcTxId) external onlyOwnerOrBtcOracle crowdsaleState limitNotExceeded crowdsaleNotFinished {
uint valueUSDWEI = _amountBTCWEI * _btcPriceUSDWEI / 1 ether;
BtcDeposit storage btcDep = btcDeposits[_btcTxId];
require(btcDep.amountBTCWEI == 0);
btcDep.amountBTCWEI = _amountBTCWEI;
btcDep.btcPriceUSDWEI = _btcPriceUSDWEI;
btcDep.investor = _to;
collectedUSDWEI += valueUSDWEI;
emitTokensFor(_to, valueUSDWEI, 0);
}
function emitTokensFor(address _investor, uint _valueUSDWEI, uint _valueWEI) internal {
var emittedTokens = emitTokens(_investor, _valueUSDWEI);
Investor storage inv = investors[_investor];
if (inv.amountTokens == 0) { // new investor
investorsIter[numberOfInvestors++] = _investor;
}
inv.amountTokens += emittedTokens;
if (state == State.Sale) {
inv.amountWei += _valueWEI;
}
}
function startPreSale(
address _beneficiary,
uint _etherPriceUSDWEI,
uint _totalLimitUSDWEI,
uint _crowdsaleDurationDays) external onlyOwner {
require(state == State.Initial);
crowdsaleStartTime = now;
beneficiary = _beneficiary;
etherPriceUSDWEI = _etherPriceUSDWEI;
totalLimitUSDWEI = _totalLimitUSDWEI;
crowdsaleFinishTime = now + _crowdsaleDurationDays * 1 days;
collectedUSDWEI = 0;
setState(State.PreSale);
}
function finishPreSale() public onlyOwner {
require(state == State.PreSale);
bool isSent = beneficiary.call.gas(3000000).value(this.balance)();
require(isSent);
setState(State.WaitingForSale);
}
function startSale(
address _beneficiary,
uint _etherPriceUSDWEI,
uint _totalLimitUSDWEI,
uint _crowdsaleDurationDays,
uint _minimalSuccessUSDWEI) external onlyOwner {
require(state == State.WaitingForSale);
crowdsaleStartTime = now;
beneficiary = _beneficiary;
etherPriceUSDWEI = _etherPriceUSDWEI;
totalLimitUSDWEI = _totalLimitUSDWEI;
crowdsaleFinishTime = now + _crowdsaleDurationDays * 1 days;
minimalSuccessUSDWEI = _minimalSuccessUSDWEI;
collectedUSDWEI = 0;
setState(State.Sale);
}
function failSale(uint _investorsToProcess) public {
require(state == State.Sale);
require(now >= crowdsaleFinishTime && collectedUSDWEI < minimalSuccessUSDWEI);
while (_investorsToProcess > 0 && numberOfInvestors > 0) {
address addr = investorsIter[--numberOfInvestors];
Investor memory inv = investors[addr];
burnTokens(addr, inv.amountTokens);
--_investorsToProcess;
delete investorsIter[numberOfInvestors];
investorsToWithdrawIter[numberOfInvestorsToWithdraw] = addr;
numberOfInvestorsToWithdraw++;
}
if (numberOfInvestors > 0) {
return;
}
setState(State.SaleFailed);
}
function completeSale(uint _investorsToProcess) public onlyOwner {
require(state == State.Sale);
require(collectedUSDWEI >= minimalSuccessUSDWEI);
while (_investorsToProcess > 0 && numberOfInvestors > 0) {
--numberOfInvestors;
--_investorsToProcess;
delete investors[investorsIter[numberOfInvestors]];
delete investorsIter[numberOfInvestors];
}
if (numberOfInvestors > 0) {
return;
}
emitAdditionalTokens();
bool isSent = beneficiary.call.gas(3000000).value(this.balance)();
require(isSent);
setState(State.CrowdsaleCompleted);
}
function setEtherPriceUSDWEI(uint _etherPriceUSDWEI) external onlyOwnerOrOracle {
etherPriceUSDWEI = _etherPriceUSDWEI;
}
function setBeneficiary(address _beneficiary) external onlyOwner() {
require(_beneficiary != 0);
beneficiary = _beneficiary;
}
// This function must be called by token holder in case of crowdsale failed
function withdrawBack() external saleFailedState {
returnInvestmentsToInternal(msg.sender);
}
function returnInvestments(uint _investorsToProcess) public saleFailedState {
while (_investorsToProcess > 0 && numberOfInvestorsToWithdraw > 0) {
address addr = investorsToWithdrawIter[--numberOfInvestorsToWithdraw];
delete investorsToWithdrawIter[numberOfInvestorsToWithdraw];
--_investorsToProcess;
returnInvestmentsToInternal(addr);
}
}
function returnInvestmentsTo(address _to) public saleFailedState {
returnInvestmentsToInternal(_to);
}
function returnInvestmentsToInternal(address _to) internal {
Investor memory inv = investors[_to];
uint value = inv.amountWei;
if (value > 0) {
delete investors[_to];
require(_to.call.gas(3000000).value(value)());
}
}
function withdrawFunds(uint _value) public onlyOwner {
require(state == State.PreSale || (state == State.Sale && collectedUSDWEI > minimalSuccessUSDWEI));
if (_value == 0) {
_value = this.balance;
}
bool isSent = beneficiary.call.gas(3000000).value(_value)();
require(isSent);
}
modifier crowdsaleNotFinished {
require(now < crowdsaleFinishTime);
_;
}
modifier limitNotExceeded {
require(collectedUSDWEI < totalLimitUSDWEI);
_;
}
modifier crowdsaleState {
require(state == State.PreSale || state == State.Sale);
_;
}
modifier saleFailedState {
require(state == State.SaleFailed);
_;
}
modifier completedSaleState {
require(state == State.CrowdsaleCompleted);
_;
}
} | withdrawBack | function withdrawBack() external saleFailedState {
returnInvestmentsToInternal(msg.sender);
}
| // This function must be called by token holder in case of crowdsale failed | LineComment | v0.4.18+commit.9cf6e910 | bzzr://06bbc0bf525ce858495eaf3a678c495345c4c11cbd3b9dac4cceec3427b0f5d2 | {
"func_code_index": [
6515,
6627
]
} | 2,096 |
|||
ArtexToken | ArtexToken.sol | 0x7705faa34b16eb6d77dfc7812be2367ba6b0248e | Solidity | MigratableToken | contract MigratableToken is Token {
function MigratableToken() payable Token() {}
bool stateMigrated = false;
address public migrationAgent;
uint public totalMigrated;
address public migrationHost;
mapping(address => bool) migratedInvestors;
event Migrated(address indexed from, address indexed to, uint value);
function setMigrationHost(address _address) external onlyOwner {
require(_address != 0);
migrationHost = _address;
}
function migrateStateFromHost() external onlyOwner {
require(stateMigrated == false && migrationHost != 0);
PreArtexToken preArtex = PreArtexToken(migrationHost);
state = Stateful.State.PreSale;
etherPriceUSDWEI = preArtex.etherPriceUSDWEI();
beneficiary = preArtex.beneficiary();
totalLimitUSDWEI = preArtex.totalLimitUSDWEI();
minimalSuccessUSDWEI = preArtex.minimalSuccessUSDWEI();
collectedUSDWEI = preArtex.collectedUSDWEI();
crowdsaleStartTime = preArtex.crowdsaleStartTime();
crowdsaleFinishTime = preArtex.crowdsaleFinishTime();
stateMigrated = true;
}
function migrateInvestorsFromHost(uint batchSize) external onlyOwner {
require(migrationHost != 0);
PreArtexToken preArtex = PreArtexToken(migrationHost);
uint numberOfInvestorsToMigrate = preArtex.numberOfInvestors();
uint currentNumberOfInvestors = numberOfInvestors;
require(currentNumberOfInvestors < numberOfInvestorsToMigrate);
for (uint i = 0; i < batchSize; i++) {
uint index = currentNumberOfInvestors + i;
if (index < numberOfInvestorsToMigrate) {
address investor = preArtex.investorsIter(index);
migrateInvestorsFromHostInternal(investor, preArtex);
}
else
break;
}
}
function migrateInvestorFromHost(address _address) external onlyOwner {
require(migrationHost != 0);
PreArtexToken preArtex = PreArtexToken(migrationHost);
migrateInvestorsFromHostInternal(_address, preArtex);
}
function migrateInvestorsFromHostInternal(address _address, PreArtexToken preArtex) internal {
require(state != State.SaleFailed && migratedInvestors[_address] == false);
var (tokensToTransfer, weiToTransfer) = preArtex.investors(_address);
require(tokensToTransfer > 0);
balances[_address] = tokensToTransfer;
totalSupply += tokensToTransfer;
migratedInvestors[_address] = true;
if (state != State.CrowdsaleCompleted) {
Investor storage investor = investors[_address];
investorsIter[numberOfInvestors] = _address;
numberOfInvestors++;
investor.amountTokens += tokensToTransfer;
investor.amountWei += weiToTransfer;
}
Transfer(this, _address, tokensToTransfer);
}
//migration by investor
function migrate() external {
require(migrationAgent != 0);
uint value = balances[msg.sender];
balances[msg.sender] -= value;
Transfer(msg.sender, this, value);
totalSupply -= value;
totalMigrated += value;
MigrationAgent(migrationAgent).migrateFrom(msg.sender, value);
Migrated(msg.sender, migrationAgent, value);
}
function setMigrationAgent(address _agent) external onlyOwner {
require(migrationAgent == 0);
migrationAgent = _agent;
}
} | migrate | function migrate() external {
require(migrationAgent != 0);
uint value = balances[msg.sender];
balances[msg.sender] -= value;
Transfer(msg.sender, this, value);
totalSupply -= value;
totalMigrated += value;
MigrationAgent(migrationAgent).migrateFrom(msg.sender, value);
Migrated(msg.sender, migrationAgent, value);
}
| //migration by investor | LineComment | v0.4.18+commit.9cf6e910 | bzzr://06bbc0bf525ce858495eaf3a678c495345c4c11cbd3b9dac4cceec3427b0f5d2 | {
"func_code_index": [
3099,
3497
]
} | 2,097 |
|||
GmStudioMindTheGap | contracts/collections/MindTheGap/MindTheGap.sol | 0x0e42ffbac75bcc30cd0015f8aaa608539ba35fbb | Solidity | GmStudioMindTheGap | contract GmStudioMindTheGap is
ERC721Common,
ReentrancyGuard,
ERC2981SinglePercentual
{
using EnumerableSet for EnumerableSet.AddressSet;
using SignatureChecker for EnumerableSet.AddressSet;
using Address for address payable;
/// @notice Price for minting
uint256 public constant MINT_PRICE = 0.15 ether;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitter;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitterRoyalties;
/// @notice Total maximum amount of tokens
uint32 public constant MAX_NUM_TOKENS = 999;
/// @notice Max number of mints per transaction.
/// @dev Only for public mints.
uint32 public constant MAX_MINT_PER_TX = 1;
/// @notice Number of mints throught the signed minting interface.
uint32 internal constant NUM_SIGNED_MINTS = 300;
/// @notice Number of mints for reserved the studio.
uint32 internal constant NUM_RESERVED_MINTS = 1;
/// @notice Currently minted supply of tokens
uint32 public totalSupply;
/// @notice Counter for the remaining signed mints
uint32 internal numSignedMintsRemaining;
/// @notice Locks the mintReserve function
bool internal reserveMinted;
/// @notice Locks the code storing function
bool internal codeStoreLocked;
/// @notice Timestamps to enables/eisables minting interfaces
/// @dev The following order is assumed
/// signedMintOpeningTimestamp < publicMintOpeningTimestamp < mintClosingTimestamp
struct MintConfig {
uint64 signedMintOpeningTimestamp;
uint64 publicMintOpeningTimestamp;
uint64 mintClosingTimestamp;
}
/// @notice The minting configuration
MintConfig public mintConfig;
/// @notice Stores the number of tokens minted from a signature
/// @dev Used in mintSigned
mapping(bytes32 => uint256) public numSignedMintsFrom;
/// @notice Signature signers for the early access phase.
/// @dev Removing signers invalidates the corresponding signatures.
EnumerableSet.AddressSet private _signers;
/// @notice tokenURI() base path.
/// @dev Without trailing slash
string internal _baseTokenURI;
constructor(
address newOwner,
address signer,
string memory baseTokenURI,
address[] memory payees,
uint256[] memory shares,
uint256[] memory sharesRoyalties
) ERC721Common("Mind the Gap by MountVitruvius", "MTG") {
_signers.add(signer);
_baseTokenURI = baseTokenURI;
paymentSplitter = payable(
PaymentSplitterDeployer.instance().deploy(payees, shares)
);
paymentSplitterRoyalties = payable(
PaymentSplitterDeployer.instance().deploy(payees, sharesRoyalties)
);
_setRoyaltyPercentage(750);
_setRoyaltyReceiver(paymentSplitterRoyalties);
numSignedMintsRemaining = NUM_SIGNED_MINTS;
transferOwnership(newOwner);
}
// -------------------------------------------------------------------------
//
// Minting
//
// -------------------------------------------------------------------------
/// @notice Toggle minting relevant flags.
function setMintConfig(MintConfig calldata config) external onlyOwner {
mintConfig = config;
}
/// @dev Reverts if we are not in the signed minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringSignedMintingPeriod() {
if (
block.timestamp < mintConfig.signedMintOpeningTimestamp ||
block.timestamp > mintConfig.publicMintOpeningTimestamp
) revert MintDisabled();
_;
}
/// @dev Reverts if we are not in the public minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringPublicMintingPeriod() {
if (
block.timestamp < mintConfig.publicMintOpeningTimestamp ||
block.timestamp > mintConfig.mintClosingTimestamp
) revert MintDisabled();
_;
}
/// @notice Mints tokens to a given address using a signed message.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
/// @param numMax Max number of tokens that can be minted to the receiver
/// @param signature to prove that the receiver is allowed to get mints.
/// @dev The signed messages is generated from `to || numMax`.
function mintSigned(
address to,
uint32 num,
uint32 numMax,
uint256 nonce,
bytes calldata signature
) external payable nonReentrant onlyDuringSignedMintingPeriod {
bytes32 message = ECDSA.toEthSignedMessageHash(
abi.encodePacked(to, numMax, nonce)
);
if (num + numSignedMintsFrom[message] > numMax)
revert TooManyMintsRequested();
if (num > numSignedMintsRemaining)
revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_signers.requireValidSignature(message, signature);
numSignedMintsFrom[message] += num;
numSignedMintsRemaining -= num;
_processPayment();
_processMint(to, num);
}
/// @notice Mints tokens to a given address.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
function mintPublic(address to, uint32 num)
external
payable
nonReentrant
onlyDuringPublicMintingPeriod
{
if (num > MAX_MINT_PER_TX) revert TooManyMintsRequested();
uint256 numRemaining = MAX_NUM_TOKENS - totalSupply;
if (num > numRemaining) revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_processPayment();
_processMint(to, num);
}
/// @notice Mints the DAO allocated tokens.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
function mintReserve(address to) external onlyOwner {
if (reserveMinted) revert MintDisabled();
reserveMinted = true;
_processMint(to, NUM_RESERVED_MINTS);
}
/// @notice Mints new tokens for the recipient.
function _processMint(address to, uint32 num) internal {
uint32 supply = totalSupply;
for (uint256 i = 0; i < num; i++) {
if (MAX_NUM_TOKENS <= supply) revert SoldOut();
ERC721._safeMint(to, supply);
supply++;
}
totalSupply = supply;
}
// -------------------------------------------------------------------------
//
// Signature validataion
//
// -------------------------------------------------------------------------
/// @notice Removes and adds addresses to the set of allowed signers.
/// @dev Removal is performed before addition.
function changeSigners(
address[] calldata delSigners,
address[] calldata addSigners
) external onlyOwner {
for (uint256 idx; idx < delSigners.length; ++idx) {
_signers.remove(delSigners[idx]);
}
for (uint256 idx; idx < addSigners.length; ++idx) {
_signers.add(addSigners[idx]);
}
}
/// @notice Returns the addresses that are used for signature verification
function getSigners() external view returns (address[] memory signers) {
uint256 len = _signers.length();
signers = new address[](len);
for (uint256 idx = 0; idx < len; ++idx) {
signers[idx] = _signers.at(idx);
}
}
// -------------------------------------------------------------------------
//
// Payment
//
// -------------------------------------------------------------------------
/// @notice Default function for receiving funds
/// @dev This enables the contract to be used as splitter for royalties.
receive() external payable {
_processPayment();
}
/// @notice Processes an incoming payment and sends it to the payment
/// splitter.
function _processPayment() internal {
paymentSplitter.sendValue(msg.value);
}
// -------------------------------------------------------------------------
//
// Metadata
//
// -------------------------------------------------------------------------
/// @notice This function is intended to store (genart) code onchain in
// calldata.
function storeCode(bytes calldata) external {
if (
codeStoreLocked ||
(mintConfig.signedMintOpeningTimestamp > 0 &&
block.timestamp > mintConfig.signedMintOpeningTimestamp)
) revert CodeStoreLocked();
codeStoreLocked = true;
}
/// @notice Change tokenURI() base path.
/// @param uri The new base path (must not contain trailing slash)
function setBaseTokenURI(string calldata uri) external onlyOwner {
_baseTokenURI = uri;
}
/// @notice Returns the URI for token metadata.
function tokenURI(uint256 tokenId)
public
view
override
tokenExists(tokenId)
returns (string memory)
{
return
string(
abi.encodePacked(
_baseTokenURI,
"/",
Strings.toString(tokenId),
".json"
)
);
}
// -------------------------------------------------------------------------
//
// Internals
//
// -------------------------------------------------------------------------
/// @dev See {IERC165-supportsInterface}.
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721Common, ERC2981)
returns (bool)
{
return super.supportsInterface(interfaceId);
}
// -------------------------------------------------------------------------
//
// Errors
//
// -------------------------------------------------------------------------
error MintDisabled();
error TooManyMintsRequested();
error InsufficientTokensRemanining();
error InvalidPayment();
error SoldOut();
error InvalidSignature();
error ExeedsOwnerAllocation();
error NotAllowedToOwnerMint();
error NotAllowToChangeAddress();
error CodeStoreLocked();
} | // __ __ __
// | \ | \ \
// ______ ______ ____ _______ _| ▓▓_ __ __ ____| ▓▓\▓▓ ______
// / \| \ \ / \ ▓▓ \ | \ | \/ ▓▓ \/ \
// | ▓▓▓▓▓▓\ ▓▓▓▓▓▓\▓▓▓▓\ | ▓▓▓▓▓▓▓\▓▓▓▓▓▓ | ▓▓ | ▓▓ ▓▓▓▓▓▓▓ ▓▓ ▓▓▓▓▓▓\
// | ▓▓ | ▓▓ ▓▓ | ▓▓ | ▓▓ \▓▓ \ | ▓▓ __| ▓▓ | ▓▓ ▓▓ | ▓▓ ▓▓ ▓▓ | ▓▓
// | ▓▓__| ▓▓ ▓▓ | ▓▓ | ▓▓__ _\▓▓▓▓▓▓\ | ▓▓| \ ▓▓__/ ▓▓ ▓▓__| ▓▓ ▓▓ ▓▓__/ ▓▓
// \▓▓ ▓▓ ▓▓ | ▓▓ | ▓▓ \ | ▓▓ \▓▓ ▓▓\▓▓ ▓▓\▓▓ ▓▓ ▓▓\▓▓ ▓▓
// _\▓▓▓▓▓▓▓\▓▓ \▓▓ \▓▓\▓▓ \▓▓▓▓▓▓▓ \▓▓▓▓ \▓▓▓▓▓▓ \▓▓▓▓▓▓▓\▓▓ \▓▓▓▓▓▓
// | \__| ▓▓
// \▓▓ ▓▓
// \▓▓▓▓▓▓
// | LineComment | setMintConfig | function setMintConfig(MintConfig calldata config) external onlyOwner {
mintConfig = config;
}
| /// @notice Toggle minting relevant flags. | NatSpecSingleLine | v0.8.11+commit.d7f03943 | Unlicense | {
"func_code_index": [
3312,
3422
]
} | 2,098 |
|
GmStudioMindTheGap | contracts/collections/MindTheGap/MindTheGap.sol | 0x0e42ffbac75bcc30cd0015f8aaa608539ba35fbb | Solidity | GmStudioMindTheGap | contract GmStudioMindTheGap is
ERC721Common,
ReentrancyGuard,
ERC2981SinglePercentual
{
using EnumerableSet for EnumerableSet.AddressSet;
using SignatureChecker for EnumerableSet.AddressSet;
using Address for address payable;
/// @notice Price for minting
uint256 public constant MINT_PRICE = 0.15 ether;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitter;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitterRoyalties;
/// @notice Total maximum amount of tokens
uint32 public constant MAX_NUM_TOKENS = 999;
/// @notice Max number of mints per transaction.
/// @dev Only for public mints.
uint32 public constant MAX_MINT_PER_TX = 1;
/// @notice Number of mints throught the signed minting interface.
uint32 internal constant NUM_SIGNED_MINTS = 300;
/// @notice Number of mints for reserved the studio.
uint32 internal constant NUM_RESERVED_MINTS = 1;
/// @notice Currently minted supply of tokens
uint32 public totalSupply;
/// @notice Counter for the remaining signed mints
uint32 internal numSignedMintsRemaining;
/// @notice Locks the mintReserve function
bool internal reserveMinted;
/// @notice Locks the code storing function
bool internal codeStoreLocked;
/// @notice Timestamps to enables/eisables minting interfaces
/// @dev The following order is assumed
/// signedMintOpeningTimestamp < publicMintOpeningTimestamp < mintClosingTimestamp
struct MintConfig {
uint64 signedMintOpeningTimestamp;
uint64 publicMintOpeningTimestamp;
uint64 mintClosingTimestamp;
}
/// @notice The minting configuration
MintConfig public mintConfig;
/// @notice Stores the number of tokens minted from a signature
/// @dev Used in mintSigned
mapping(bytes32 => uint256) public numSignedMintsFrom;
/// @notice Signature signers for the early access phase.
/// @dev Removing signers invalidates the corresponding signatures.
EnumerableSet.AddressSet private _signers;
/// @notice tokenURI() base path.
/// @dev Without trailing slash
string internal _baseTokenURI;
constructor(
address newOwner,
address signer,
string memory baseTokenURI,
address[] memory payees,
uint256[] memory shares,
uint256[] memory sharesRoyalties
) ERC721Common("Mind the Gap by MountVitruvius", "MTG") {
_signers.add(signer);
_baseTokenURI = baseTokenURI;
paymentSplitter = payable(
PaymentSplitterDeployer.instance().deploy(payees, shares)
);
paymentSplitterRoyalties = payable(
PaymentSplitterDeployer.instance().deploy(payees, sharesRoyalties)
);
_setRoyaltyPercentage(750);
_setRoyaltyReceiver(paymentSplitterRoyalties);
numSignedMintsRemaining = NUM_SIGNED_MINTS;
transferOwnership(newOwner);
}
// -------------------------------------------------------------------------
//
// Minting
//
// -------------------------------------------------------------------------
/// @notice Toggle minting relevant flags.
function setMintConfig(MintConfig calldata config) external onlyOwner {
mintConfig = config;
}
/// @dev Reverts if we are not in the signed minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringSignedMintingPeriod() {
if (
block.timestamp < mintConfig.signedMintOpeningTimestamp ||
block.timestamp > mintConfig.publicMintOpeningTimestamp
) revert MintDisabled();
_;
}
/// @dev Reverts if we are not in the public minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringPublicMintingPeriod() {
if (
block.timestamp < mintConfig.publicMintOpeningTimestamp ||
block.timestamp > mintConfig.mintClosingTimestamp
) revert MintDisabled();
_;
}
/// @notice Mints tokens to a given address using a signed message.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
/// @param numMax Max number of tokens that can be minted to the receiver
/// @param signature to prove that the receiver is allowed to get mints.
/// @dev The signed messages is generated from `to || numMax`.
function mintSigned(
address to,
uint32 num,
uint32 numMax,
uint256 nonce,
bytes calldata signature
) external payable nonReentrant onlyDuringSignedMintingPeriod {
bytes32 message = ECDSA.toEthSignedMessageHash(
abi.encodePacked(to, numMax, nonce)
);
if (num + numSignedMintsFrom[message] > numMax)
revert TooManyMintsRequested();
if (num > numSignedMintsRemaining)
revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_signers.requireValidSignature(message, signature);
numSignedMintsFrom[message] += num;
numSignedMintsRemaining -= num;
_processPayment();
_processMint(to, num);
}
/// @notice Mints tokens to a given address.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
function mintPublic(address to, uint32 num)
external
payable
nonReentrant
onlyDuringPublicMintingPeriod
{
if (num > MAX_MINT_PER_TX) revert TooManyMintsRequested();
uint256 numRemaining = MAX_NUM_TOKENS - totalSupply;
if (num > numRemaining) revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_processPayment();
_processMint(to, num);
}
/// @notice Mints the DAO allocated tokens.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
function mintReserve(address to) external onlyOwner {
if (reserveMinted) revert MintDisabled();
reserveMinted = true;
_processMint(to, NUM_RESERVED_MINTS);
}
/// @notice Mints new tokens for the recipient.
function _processMint(address to, uint32 num) internal {
uint32 supply = totalSupply;
for (uint256 i = 0; i < num; i++) {
if (MAX_NUM_TOKENS <= supply) revert SoldOut();
ERC721._safeMint(to, supply);
supply++;
}
totalSupply = supply;
}
// -------------------------------------------------------------------------
//
// Signature validataion
//
// -------------------------------------------------------------------------
/// @notice Removes and adds addresses to the set of allowed signers.
/// @dev Removal is performed before addition.
function changeSigners(
address[] calldata delSigners,
address[] calldata addSigners
) external onlyOwner {
for (uint256 idx; idx < delSigners.length; ++idx) {
_signers.remove(delSigners[idx]);
}
for (uint256 idx; idx < addSigners.length; ++idx) {
_signers.add(addSigners[idx]);
}
}
/// @notice Returns the addresses that are used for signature verification
function getSigners() external view returns (address[] memory signers) {
uint256 len = _signers.length();
signers = new address[](len);
for (uint256 idx = 0; idx < len; ++idx) {
signers[idx] = _signers.at(idx);
}
}
// -------------------------------------------------------------------------
//
// Payment
//
// -------------------------------------------------------------------------
/// @notice Default function for receiving funds
/// @dev This enables the contract to be used as splitter for royalties.
receive() external payable {
_processPayment();
}
/// @notice Processes an incoming payment and sends it to the payment
/// splitter.
function _processPayment() internal {
paymentSplitter.sendValue(msg.value);
}
// -------------------------------------------------------------------------
//
// Metadata
//
// -------------------------------------------------------------------------
/// @notice This function is intended to store (genart) code onchain in
// calldata.
function storeCode(bytes calldata) external {
if (
codeStoreLocked ||
(mintConfig.signedMintOpeningTimestamp > 0 &&
block.timestamp > mintConfig.signedMintOpeningTimestamp)
) revert CodeStoreLocked();
codeStoreLocked = true;
}
/// @notice Change tokenURI() base path.
/// @param uri The new base path (must not contain trailing slash)
function setBaseTokenURI(string calldata uri) external onlyOwner {
_baseTokenURI = uri;
}
/// @notice Returns the URI for token metadata.
function tokenURI(uint256 tokenId)
public
view
override
tokenExists(tokenId)
returns (string memory)
{
return
string(
abi.encodePacked(
_baseTokenURI,
"/",
Strings.toString(tokenId),
".json"
)
);
}
// -------------------------------------------------------------------------
//
// Internals
//
// -------------------------------------------------------------------------
/// @dev See {IERC165-supportsInterface}.
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721Common, ERC2981)
returns (bool)
{
return super.supportsInterface(interfaceId);
}
// -------------------------------------------------------------------------
//
// Errors
//
// -------------------------------------------------------------------------
error MintDisabled();
error TooManyMintsRequested();
error InsufficientTokensRemanining();
error InvalidPayment();
error SoldOut();
error InvalidSignature();
error ExeedsOwnerAllocation();
error NotAllowedToOwnerMint();
error NotAllowToChangeAddress();
error CodeStoreLocked();
} | // __ __ __
// | \ | \ \
// ______ ______ ____ _______ _| ▓▓_ __ __ ____| ▓▓\▓▓ ______
// / \| \ \ / \ ▓▓ \ | \ | \/ ▓▓ \/ \
// | ▓▓▓▓▓▓\ ▓▓▓▓▓▓\▓▓▓▓\ | ▓▓▓▓▓▓▓\▓▓▓▓▓▓ | ▓▓ | ▓▓ ▓▓▓▓▓▓▓ ▓▓ ▓▓▓▓▓▓\
// | ▓▓ | ▓▓ ▓▓ | ▓▓ | ▓▓ \▓▓ \ | ▓▓ __| ▓▓ | ▓▓ ▓▓ | ▓▓ ▓▓ ▓▓ | ▓▓
// | ▓▓__| ▓▓ ▓▓ | ▓▓ | ▓▓__ _\▓▓▓▓▓▓\ | ▓▓| \ ▓▓__/ ▓▓ ▓▓__| ▓▓ ▓▓ ▓▓__/ ▓▓
// \▓▓ ▓▓ ▓▓ | ▓▓ | ▓▓ \ | ▓▓ \▓▓ ▓▓\▓▓ ▓▓\▓▓ ▓▓ ▓▓\▓▓ ▓▓
// _\▓▓▓▓▓▓▓\▓▓ \▓▓ \▓▓\▓▓ \▓▓▓▓▓▓▓ \▓▓▓▓ \▓▓▓▓▓▓ \▓▓▓▓▓▓▓\▓▓ \▓▓▓▓▓▓
// | \__| ▓▓
// \▓▓ ▓▓
// \▓▓▓▓▓▓
// | LineComment | mintSigned | function mintSigned(
address to,
uint32 num,
uint32 numMax,
uint256 nonce,
bytes calldata signature
) external payable nonReentrant onlyDuringSignedMintingPeriod {
bytes32 message = ECDSA.toEthSignedMessageHash(
abi.encodePacked(to, numMax, nonce)
);
if (num + numSignedMintsFrom[message] > numMax)
revert TooManyMintsRequested();
if (num > numSignedMintsRemaining)
revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_signers.requireValidSignature(message, signature);
numSignedMintsFrom[message] += num;
numSignedMintsRemaining -= num;
_processPayment();
_processMint(to, num);
}
| /// @notice Mints tokens to a given address using a signed message.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
/// @param numMax Max number of tokens that can be minted to the receiver
/// @param signature to prove that the receiver is allowed to get mints.
/// @dev The signed messages is generated from `to || numMax`. | NatSpecSingleLine | v0.8.11+commit.d7f03943 | Unlicense | {
"func_code_index": [
4591,
5392
]
} | 2,099 |
|
GmStudioMindTheGap | contracts/collections/MindTheGap/MindTheGap.sol | 0x0e42ffbac75bcc30cd0015f8aaa608539ba35fbb | Solidity | GmStudioMindTheGap | contract GmStudioMindTheGap is
ERC721Common,
ReentrancyGuard,
ERC2981SinglePercentual
{
using EnumerableSet for EnumerableSet.AddressSet;
using SignatureChecker for EnumerableSet.AddressSet;
using Address for address payable;
/// @notice Price for minting
uint256 public constant MINT_PRICE = 0.15 ether;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitter;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitterRoyalties;
/// @notice Total maximum amount of tokens
uint32 public constant MAX_NUM_TOKENS = 999;
/// @notice Max number of mints per transaction.
/// @dev Only for public mints.
uint32 public constant MAX_MINT_PER_TX = 1;
/// @notice Number of mints throught the signed minting interface.
uint32 internal constant NUM_SIGNED_MINTS = 300;
/// @notice Number of mints for reserved the studio.
uint32 internal constant NUM_RESERVED_MINTS = 1;
/// @notice Currently minted supply of tokens
uint32 public totalSupply;
/// @notice Counter for the remaining signed mints
uint32 internal numSignedMintsRemaining;
/// @notice Locks the mintReserve function
bool internal reserveMinted;
/// @notice Locks the code storing function
bool internal codeStoreLocked;
/// @notice Timestamps to enables/eisables minting interfaces
/// @dev The following order is assumed
/// signedMintOpeningTimestamp < publicMintOpeningTimestamp < mintClosingTimestamp
struct MintConfig {
uint64 signedMintOpeningTimestamp;
uint64 publicMintOpeningTimestamp;
uint64 mintClosingTimestamp;
}
/// @notice The minting configuration
MintConfig public mintConfig;
/// @notice Stores the number of tokens minted from a signature
/// @dev Used in mintSigned
mapping(bytes32 => uint256) public numSignedMintsFrom;
/// @notice Signature signers for the early access phase.
/// @dev Removing signers invalidates the corresponding signatures.
EnumerableSet.AddressSet private _signers;
/// @notice tokenURI() base path.
/// @dev Without trailing slash
string internal _baseTokenURI;
constructor(
address newOwner,
address signer,
string memory baseTokenURI,
address[] memory payees,
uint256[] memory shares,
uint256[] memory sharesRoyalties
) ERC721Common("Mind the Gap by MountVitruvius", "MTG") {
_signers.add(signer);
_baseTokenURI = baseTokenURI;
paymentSplitter = payable(
PaymentSplitterDeployer.instance().deploy(payees, shares)
);
paymentSplitterRoyalties = payable(
PaymentSplitterDeployer.instance().deploy(payees, sharesRoyalties)
);
_setRoyaltyPercentage(750);
_setRoyaltyReceiver(paymentSplitterRoyalties);
numSignedMintsRemaining = NUM_SIGNED_MINTS;
transferOwnership(newOwner);
}
// -------------------------------------------------------------------------
//
// Minting
//
// -------------------------------------------------------------------------
/// @notice Toggle minting relevant flags.
function setMintConfig(MintConfig calldata config) external onlyOwner {
mintConfig = config;
}
/// @dev Reverts if we are not in the signed minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringSignedMintingPeriod() {
if (
block.timestamp < mintConfig.signedMintOpeningTimestamp ||
block.timestamp > mintConfig.publicMintOpeningTimestamp
) revert MintDisabled();
_;
}
/// @dev Reverts if we are not in the public minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringPublicMintingPeriod() {
if (
block.timestamp < mintConfig.publicMintOpeningTimestamp ||
block.timestamp > mintConfig.mintClosingTimestamp
) revert MintDisabled();
_;
}
/// @notice Mints tokens to a given address using a signed message.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
/// @param numMax Max number of tokens that can be minted to the receiver
/// @param signature to prove that the receiver is allowed to get mints.
/// @dev The signed messages is generated from `to || numMax`.
function mintSigned(
address to,
uint32 num,
uint32 numMax,
uint256 nonce,
bytes calldata signature
) external payable nonReentrant onlyDuringSignedMintingPeriod {
bytes32 message = ECDSA.toEthSignedMessageHash(
abi.encodePacked(to, numMax, nonce)
);
if (num + numSignedMintsFrom[message] > numMax)
revert TooManyMintsRequested();
if (num > numSignedMintsRemaining)
revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_signers.requireValidSignature(message, signature);
numSignedMintsFrom[message] += num;
numSignedMintsRemaining -= num;
_processPayment();
_processMint(to, num);
}
/// @notice Mints tokens to a given address.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
function mintPublic(address to, uint32 num)
external
payable
nonReentrant
onlyDuringPublicMintingPeriod
{
if (num > MAX_MINT_PER_TX) revert TooManyMintsRequested();
uint256 numRemaining = MAX_NUM_TOKENS - totalSupply;
if (num > numRemaining) revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_processPayment();
_processMint(to, num);
}
/// @notice Mints the DAO allocated tokens.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
function mintReserve(address to) external onlyOwner {
if (reserveMinted) revert MintDisabled();
reserveMinted = true;
_processMint(to, NUM_RESERVED_MINTS);
}
/// @notice Mints new tokens for the recipient.
function _processMint(address to, uint32 num) internal {
uint32 supply = totalSupply;
for (uint256 i = 0; i < num; i++) {
if (MAX_NUM_TOKENS <= supply) revert SoldOut();
ERC721._safeMint(to, supply);
supply++;
}
totalSupply = supply;
}
// -------------------------------------------------------------------------
//
// Signature validataion
//
// -------------------------------------------------------------------------
/// @notice Removes and adds addresses to the set of allowed signers.
/// @dev Removal is performed before addition.
function changeSigners(
address[] calldata delSigners,
address[] calldata addSigners
) external onlyOwner {
for (uint256 idx; idx < delSigners.length; ++idx) {
_signers.remove(delSigners[idx]);
}
for (uint256 idx; idx < addSigners.length; ++idx) {
_signers.add(addSigners[idx]);
}
}
/// @notice Returns the addresses that are used for signature verification
function getSigners() external view returns (address[] memory signers) {
uint256 len = _signers.length();
signers = new address[](len);
for (uint256 idx = 0; idx < len; ++idx) {
signers[idx] = _signers.at(idx);
}
}
// -------------------------------------------------------------------------
//
// Payment
//
// -------------------------------------------------------------------------
/// @notice Default function for receiving funds
/// @dev This enables the contract to be used as splitter for royalties.
receive() external payable {
_processPayment();
}
/// @notice Processes an incoming payment and sends it to the payment
/// splitter.
function _processPayment() internal {
paymentSplitter.sendValue(msg.value);
}
// -------------------------------------------------------------------------
//
// Metadata
//
// -------------------------------------------------------------------------
/// @notice This function is intended to store (genart) code onchain in
// calldata.
function storeCode(bytes calldata) external {
if (
codeStoreLocked ||
(mintConfig.signedMintOpeningTimestamp > 0 &&
block.timestamp > mintConfig.signedMintOpeningTimestamp)
) revert CodeStoreLocked();
codeStoreLocked = true;
}
/// @notice Change tokenURI() base path.
/// @param uri The new base path (must not contain trailing slash)
function setBaseTokenURI(string calldata uri) external onlyOwner {
_baseTokenURI = uri;
}
/// @notice Returns the URI for token metadata.
function tokenURI(uint256 tokenId)
public
view
override
tokenExists(tokenId)
returns (string memory)
{
return
string(
abi.encodePacked(
_baseTokenURI,
"/",
Strings.toString(tokenId),
".json"
)
);
}
// -------------------------------------------------------------------------
//
// Internals
//
// -------------------------------------------------------------------------
/// @dev See {IERC165-supportsInterface}.
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721Common, ERC2981)
returns (bool)
{
return super.supportsInterface(interfaceId);
}
// -------------------------------------------------------------------------
//
// Errors
//
// -------------------------------------------------------------------------
error MintDisabled();
error TooManyMintsRequested();
error InsufficientTokensRemanining();
error InvalidPayment();
error SoldOut();
error InvalidSignature();
error ExeedsOwnerAllocation();
error NotAllowedToOwnerMint();
error NotAllowToChangeAddress();
error CodeStoreLocked();
} | // __ __ __
// | \ | \ \
// ______ ______ ____ _______ _| ▓▓_ __ __ ____| ▓▓\▓▓ ______
// / \| \ \ / \ ▓▓ \ | \ | \/ ▓▓ \/ \
// | ▓▓▓▓▓▓\ ▓▓▓▓▓▓\▓▓▓▓\ | ▓▓▓▓▓▓▓\▓▓▓▓▓▓ | ▓▓ | ▓▓ ▓▓▓▓▓▓▓ ▓▓ ▓▓▓▓▓▓\
// | ▓▓ | ▓▓ ▓▓ | ▓▓ | ▓▓ \▓▓ \ | ▓▓ __| ▓▓ | ▓▓ ▓▓ | ▓▓ ▓▓ ▓▓ | ▓▓
// | ▓▓__| ▓▓ ▓▓ | ▓▓ | ▓▓__ _\▓▓▓▓▓▓\ | ▓▓| \ ▓▓__/ ▓▓ ▓▓__| ▓▓ ▓▓ ▓▓__/ ▓▓
// \▓▓ ▓▓ ▓▓ | ▓▓ | ▓▓ \ | ▓▓ \▓▓ ▓▓\▓▓ ▓▓\▓▓ ▓▓ ▓▓\▓▓ ▓▓
// _\▓▓▓▓▓▓▓\▓▓ \▓▓ \▓▓\▓▓ \▓▓▓▓▓▓▓ \▓▓▓▓ \▓▓▓▓▓▓ \▓▓▓▓▓▓▓\▓▓ \▓▓▓▓▓▓
// | \__| ▓▓
// \▓▓ ▓▓
// \▓▓▓▓▓▓
// | LineComment | mintPublic | function mintPublic(address to, uint32 num)
external
payable
nonReentrant
onlyDuringPublicMintingPeriod
{
if (num > MAX_MINT_PER_TX) revert TooManyMintsRequested();
uint256 numRemaining = MAX_NUM_TOKENS - totalSupply;
if (num > numRemaining) revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_processPayment();
_processMint(to, num);
}
| /// @notice Mints tokens to a given address.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted. | NatSpecSingleLine | v0.8.11+commit.d7f03943 | Unlicense | {
"func_code_index": [
5588,
6067
]
} | 2,100 |
|
GmStudioMindTheGap | contracts/collections/MindTheGap/MindTheGap.sol | 0x0e42ffbac75bcc30cd0015f8aaa608539ba35fbb | Solidity | GmStudioMindTheGap | contract GmStudioMindTheGap is
ERC721Common,
ReentrancyGuard,
ERC2981SinglePercentual
{
using EnumerableSet for EnumerableSet.AddressSet;
using SignatureChecker for EnumerableSet.AddressSet;
using Address for address payable;
/// @notice Price for minting
uint256 public constant MINT_PRICE = 0.15 ether;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitter;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitterRoyalties;
/// @notice Total maximum amount of tokens
uint32 public constant MAX_NUM_TOKENS = 999;
/// @notice Max number of mints per transaction.
/// @dev Only for public mints.
uint32 public constant MAX_MINT_PER_TX = 1;
/// @notice Number of mints throught the signed minting interface.
uint32 internal constant NUM_SIGNED_MINTS = 300;
/// @notice Number of mints for reserved the studio.
uint32 internal constant NUM_RESERVED_MINTS = 1;
/// @notice Currently minted supply of tokens
uint32 public totalSupply;
/// @notice Counter for the remaining signed mints
uint32 internal numSignedMintsRemaining;
/// @notice Locks the mintReserve function
bool internal reserveMinted;
/// @notice Locks the code storing function
bool internal codeStoreLocked;
/// @notice Timestamps to enables/eisables minting interfaces
/// @dev The following order is assumed
/// signedMintOpeningTimestamp < publicMintOpeningTimestamp < mintClosingTimestamp
struct MintConfig {
uint64 signedMintOpeningTimestamp;
uint64 publicMintOpeningTimestamp;
uint64 mintClosingTimestamp;
}
/// @notice The minting configuration
MintConfig public mintConfig;
/// @notice Stores the number of tokens minted from a signature
/// @dev Used in mintSigned
mapping(bytes32 => uint256) public numSignedMintsFrom;
/// @notice Signature signers for the early access phase.
/// @dev Removing signers invalidates the corresponding signatures.
EnumerableSet.AddressSet private _signers;
/// @notice tokenURI() base path.
/// @dev Without trailing slash
string internal _baseTokenURI;
constructor(
address newOwner,
address signer,
string memory baseTokenURI,
address[] memory payees,
uint256[] memory shares,
uint256[] memory sharesRoyalties
) ERC721Common("Mind the Gap by MountVitruvius", "MTG") {
_signers.add(signer);
_baseTokenURI = baseTokenURI;
paymentSplitter = payable(
PaymentSplitterDeployer.instance().deploy(payees, shares)
);
paymentSplitterRoyalties = payable(
PaymentSplitterDeployer.instance().deploy(payees, sharesRoyalties)
);
_setRoyaltyPercentage(750);
_setRoyaltyReceiver(paymentSplitterRoyalties);
numSignedMintsRemaining = NUM_SIGNED_MINTS;
transferOwnership(newOwner);
}
// -------------------------------------------------------------------------
//
// Minting
//
// -------------------------------------------------------------------------
/// @notice Toggle minting relevant flags.
function setMintConfig(MintConfig calldata config) external onlyOwner {
mintConfig = config;
}
/// @dev Reverts if we are not in the signed minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringSignedMintingPeriod() {
if (
block.timestamp < mintConfig.signedMintOpeningTimestamp ||
block.timestamp > mintConfig.publicMintOpeningTimestamp
) revert MintDisabled();
_;
}
/// @dev Reverts if we are not in the public minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringPublicMintingPeriod() {
if (
block.timestamp < mintConfig.publicMintOpeningTimestamp ||
block.timestamp > mintConfig.mintClosingTimestamp
) revert MintDisabled();
_;
}
/// @notice Mints tokens to a given address using a signed message.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
/// @param numMax Max number of tokens that can be minted to the receiver
/// @param signature to prove that the receiver is allowed to get mints.
/// @dev The signed messages is generated from `to || numMax`.
function mintSigned(
address to,
uint32 num,
uint32 numMax,
uint256 nonce,
bytes calldata signature
) external payable nonReentrant onlyDuringSignedMintingPeriod {
bytes32 message = ECDSA.toEthSignedMessageHash(
abi.encodePacked(to, numMax, nonce)
);
if (num + numSignedMintsFrom[message] > numMax)
revert TooManyMintsRequested();
if (num > numSignedMintsRemaining)
revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_signers.requireValidSignature(message, signature);
numSignedMintsFrom[message] += num;
numSignedMintsRemaining -= num;
_processPayment();
_processMint(to, num);
}
/// @notice Mints tokens to a given address.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
function mintPublic(address to, uint32 num)
external
payable
nonReentrant
onlyDuringPublicMintingPeriod
{
if (num > MAX_MINT_PER_TX) revert TooManyMintsRequested();
uint256 numRemaining = MAX_NUM_TOKENS - totalSupply;
if (num > numRemaining) revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_processPayment();
_processMint(to, num);
}
/// @notice Mints the DAO allocated tokens.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
function mintReserve(address to) external onlyOwner {
if (reserveMinted) revert MintDisabled();
reserveMinted = true;
_processMint(to, NUM_RESERVED_MINTS);
}
/// @notice Mints new tokens for the recipient.
function _processMint(address to, uint32 num) internal {
uint32 supply = totalSupply;
for (uint256 i = 0; i < num; i++) {
if (MAX_NUM_TOKENS <= supply) revert SoldOut();
ERC721._safeMint(to, supply);
supply++;
}
totalSupply = supply;
}
// -------------------------------------------------------------------------
//
// Signature validataion
//
// -------------------------------------------------------------------------
/// @notice Removes and adds addresses to the set of allowed signers.
/// @dev Removal is performed before addition.
function changeSigners(
address[] calldata delSigners,
address[] calldata addSigners
) external onlyOwner {
for (uint256 idx; idx < delSigners.length; ++idx) {
_signers.remove(delSigners[idx]);
}
for (uint256 idx; idx < addSigners.length; ++idx) {
_signers.add(addSigners[idx]);
}
}
/// @notice Returns the addresses that are used for signature verification
function getSigners() external view returns (address[] memory signers) {
uint256 len = _signers.length();
signers = new address[](len);
for (uint256 idx = 0; idx < len; ++idx) {
signers[idx] = _signers.at(idx);
}
}
// -------------------------------------------------------------------------
//
// Payment
//
// -------------------------------------------------------------------------
/// @notice Default function for receiving funds
/// @dev This enables the contract to be used as splitter for royalties.
receive() external payable {
_processPayment();
}
/// @notice Processes an incoming payment and sends it to the payment
/// splitter.
function _processPayment() internal {
paymentSplitter.sendValue(msg.value);
}
// -------------------------------------------------------------------------
//
// Metadata
//
// -------------------------------------------------------------------------
/// @notice This function is intended to store (genart) code onchain in
// calldata.
function storeCode(bytes calldata) external {
if (
codeStoreLocked ||
(mintConfig.signedMintOpeningTimestamp > 0 &&
block.timestamp > mintConfig.signedMintOpeningTimestamp)
) revert CodeStoreLocked();
codeStoreLocked = true;
}
/// @notice Change tokenURI() base path.
/// @param uri The new base path (must not contain trailing slash)
function setBaseTokenURI(string calldata uri) external onlyOwner {
_baseTokenURI = uri;
}
/// @notice Returns the URI for token metadata.
function tokenURI(uint256 tokenId)
public
view
override
tokenExists(tokenId)
returns (string memory)
{
return
string(
abi.encodePacked(
_baseTokenURI,
"/",
Strings.toString(tokenId),
".json"
)
);
}
// -------------------------------------------------------------------------
//
// Internals
//
// -------------------------------------------------------------------------
/// @dev See {IERC165-supportsInterface}.
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721Common, ERC2981)
returns (bool)
{
return super.supportsInterface(interfaceId);
}
// -------------------------------------------------------------------------
//
// Errors
//
// -------------------------------------------------------------------------
error MintDisabled();
error TooManyMintsRequested();
error InsufficientTokensRemanining();
error InvalidPayment();
error SoldOut();
error InvalidSignature();
error ExeedsOwnerAllocation();
error NotAllowedToOwnerMint();
error NotAllowToChangeAddress();
error CodeStoreLocked();
} | // __ __ __
// | \ | \ \
// ______ ______ ____ _______ _| ▓▓_ __ __ ____| ▓▓\▓▓ ______
// / \| \ \ / \ ▓▓ \ | \ | \/ ▓▓ \/ \
// | ▓▓▓▓▓▓\ ▓▓▓▓▓▓\▓▓▓▓\ | ▓▓▓▓▓▓▓\▓▓▓▓▓▓ | ▓▓ | ▓▓ ▓▓▓▓▓▓▓ ▓▓ ▓▓▓▓▓▓\
// | ▓▓ | ▓▓ ▓▓ | ▓▓ | ▓▓ \▓▓ \ | ▓▓ __| ▓▓ | ▓▓ ▓▓ | ▓▓ ▓▓ ▓▓ | ▓▓
// | ▓▓__| ▓▓ ▓▓ | ▓▓ | ▓▓__ _\▓▓▓▓▓▓\ | ▓▓| \ ▓▓__/ ▓▓ ▓▓__| ▓▓ ▓▓ ▓▓__/ ▓▓
// \▓▓ ▓▓ ▓▓ | ▓▓ | ▓▓ \ | ▓▓ \▓▓ ▓▓\▓▓ ▓▓\▓▓ ▓▓ ▓▓\▓▓ ▓▓
// _\▓▓▓▓▓▓▓\▓▓ \▓▓ \▓▓\▓▓ \▓▓▓▓▓▓▓ \▓▓▓▓ \▓▓▓▓▓▓ \▓▓▓▓▓▓▓\▓▓ \▓▓▓▓▓▓
// | \__| ▓▓
// \▓▓ ▓▓
// \▓▓▓▓▓▓
// | LineComment | mintReserve | function mintReserve(address to) external onlyOwner {
if (reserveMinted) revert MintDisabled();
reserveMinted = true;
_processMint(to, NUM_RESERVED_MINTS);
}
| /// @notice Mints the DAO allocated tokens.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver | NatSpecSingleLine | v0.8.11+commit.d7f03943 | Unlicense | {
"func_code_index": [
6212,
6401
]
} | 2,101 |
|
GmStudioMindTheGap | contracts/collections/MindTheGap/MindTheGap.sol | 0x0e42ffbac75bcc30cd0015f8aaa608539ba35fbb | Solidity | GmStudioMindTheGap | contract GmStudioMindTheGap is
ERC721Common,
ReentrancyGuard,
ERC2981SinglePercentual
{
using EnumerableSet for EnumerableSet.AddressSet;
using SignatureChecker for EnumerableSet.AddressSet;
using Address for address payable;
/// @notice Price for minting
uint256 public constant MINT_PRICE = 0.15 ether;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitter;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitterRoyalties;
/// @notice Total maximum amount of tokens
uint32 public constant MAX_NUM_TOKENS = 999;
/// @notice Max number of mints per transaction.
/// @dev Only for public mints.
uint32 public constant MAX_MINT_PER_TX = 1;
/// @notice Number of mints throught the signed minting interface.
uint32 internal constant NUM_SIGNED_MINTS = 300;
/// @notice Number of mints for reserved the studio.
uint32 internal constant NUM_RESERVED_MINTS = 1;
/// @notice Currently minted supply of tokens
uint32 public totalSupply;
/// @notice Counter for the remaining signed mints
uint32 internal numSignedMintsRemaining;
/// @notice Locks the mintReserve function
bool internal reserveMinted;
/// @notice Locks the code storing function
bool internal codeStoreLocked;
/// @notice Timestamps to enables/eisables minting interfaces
/// @dev The following order is assumed
/// signedMintOpeningTimestamp < publicMintOpeningTimestamp < mintClosingTimestamp
struct MintConfig {
uint64 signedMintOpeningTimestamp;
uint64 publicMintOpeningTimestamp;
uint64 mintClosingTimestamp;
}
/// @notice The minting configuration
MintConfig public mintConfig;
/// @notice Stores the number of tokens minted from a signature
/// @dev Used in mintSigned
mapping(bytes32 => uint256) public numSignedMintsFrom;
/// @notice Signature signers for the early access phase.
/// @dev Removing signers invalidates the corresponding signatures.
EnumerableSet.AddressSet private _signers;
/// @notice tokenURI() base path.
/// @dev Without trailing slash
string internal _baseTokenURI;
constructor(
address newOwner,
address signer,
string memory baseTokenURI,
address[] memory payees,
uint256[] memory shares,
uint256[] memory sharesRoyalties
) ERC721Common("Mind the Gap by MountVitruvius", "MTG") {
_signers.add(signer);
_baseTokenURI = baseTokenURI;
paymentSplitter = payable(
PaymentSplitterDeployer.instance().deploy(payees, shares)
);
paymentSplitterRoyalties = payable(
PaymentSplitterDeployer.instance().deploy(payees, sharesRoyalties)
);
_setRoyaltyPercentage(750);
_setRoyaltyReceiver(paymentSplitterRoyalties);
numSignedMintsRemaining = NUM_SIGNED_MINTS;
transferOwnership(newOwner);
}
// -------------------------------------------------------------------------
//
// Minting
//
// -------------------------------------------------------------------------
/// @notice Toggle minting relevant flags.
function setMintConfig(MintConfig calldata config) external onlyOwner {
mintConfig = config;
}
/// @dev Reverts if we are not in the signed minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringSignedMintingPeriod() {
if (
block.timestamp < mintConfig.signedMintOpeningTimestamp ||
block.timestamp > mintConfig.publicMintOpeningTimestamp
) revert MintDisabled();
_;
}
/// @dev Reverts if we are not in the public minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringPublicMintingPeriod() {
if (
block.timestamp < mintConfig.publicMintOpeningTimestamp ||
block.timestamp > mintConfig.mintClosingTimestamp
) revert MintDisabled();
_;
}
/// @notice Mints tokens to a given address using a signed message.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
/// @param numMax Max number of tokens that can be minted to the receiver
/// @param signature to prove that the receiver is allowed to get mints.
/// @dev The signed messages is generated from `to || numMax`.
function mintSigned(
address to,
uint32 num,
uint32 numMax,
uint256 nonce,
bytes calldata signature
) external payable nonReentrant onlyDuringSignedMintingPeriod {
bytes32 message = ECDSA.toEthSignedMessageHash(
abi.encodePacked(to, numMax, nonce)
);
if (num + numSignedMintsFrom[message] > numMax)
revert TooManyMintsRequested();
if (num > numSignedMintsRemaining)
revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_signers.requireValidSignature(message, signature);
numSignedMintsFrom[message] += num;
numSignedMintsRemaining -= num;
_processPayment();
_processMint(to, num);
}
/// @notice Mints tokens to a given address.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
function mintPublic(address to, uint32 num)
external
payable
nonReentrant
onlyDuringPublicMintingPeriod
{
if (num > MAX_MINT_PER_TX) revert TooManyMintsRequested();
uint256 numRemaining = MAX_NUM_TOKENS - totalSupply;
if (num > numRemaining) revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_processPayment();
_processMint(to, num);
}
/// @notice Mints the DAO allocated tokens.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
function mintReserve(address to) external onlyOwner {
if (reserveMinted) revert MintDisabled();
reserveMinted = true;
_processMint(to, NUM_RESERVED_MINTS);
}
/// @notice Mints new tokens for the recipient.
function _processMint(address to, uint32 num) internal {
uint32 supply = totalSupply;
for (uint256 i = 0; i < num; i++) {
if (MAX_NUM_TOKENS <= supply) revert SoldOut();
ERC721._safeMint(to, supply);
supply++;
}
totalSupply = supply;
}
// -------------------------------------------------------------------------
//
// Signature validataion
//
// -------------------------------------------------------------------------
/// @notice Removes and adds addresses to the set of allowed signers.
/// @dev Removal is performed before addition.
function changeSigners(
address[] calldata delSigners,
address[] calldata addSigners
) external onlyOwner {
for (uint256 idx; idx < delSigners.length; ++idx) {
_signers.remove(delSigners[idx]);
}
for (uint256 idx; idx < addSigners.length; ++idx) {
_signers.add(addSigners[idx]);
}
}
/// @notice Returns the addresses that are used for signature verification
function getSigners() external view returns (address[] memory signers) {
uint256 len = _signers.length();
signers = new address[](len);
for (uint256 idx = 0; idx < len; ++idx) {
signers[idx] = _signers.at(idx);
}
}
// -------------------------------------------------------------------------
//
// Payment
//
// -------------------------------------------------------------------------
/// @notice Default function for receiving funds
/// @dev This enables the contract to be used as splitter for royalties.
receive() external payable {
_processPayment();
}
/// @notice Processes an incoming payment and sends it to the payment
/// splitter.
function _processPayment() internal {
paymentSplitter.sendValue(msg.value);
}
// -------------------------------------------------------------------------
//
// Metadata
//
// -------------------------------------------------------------------------
/// @notice This function is intended to store (genart) code onchain in
// calldata.
function storeCode(bytes calldata) external {
if (
codeStoreLocked ||
(mintConfig.signedMintOpeningTimestamp > 0 &&
block.timestamp > mintConfig.signedMintOpeningTimestamp)
) revert CodeStoreLocked();
codeStoreLocked = true;
}
/// @notice Change tokenURI() base path.
/// @param uri The new base path (must not contain trailing slash)
function setBaseTokenURI(string calldata uri) external onlyOwner {
_baseTokenURI = uri;
}
/// @notice Returns the URI for token metadata.
function tokenURI(uint256 tokenId)
public
view
override
tokenExists(tokenId)
returns (string memory)
{
return
string(
abi.encodePacked(
_baseTokenURI,
"/",
Strings.toString(tokenId),
".json"
)
);
}
// -------------------------------------------------------------------------
//
// Internals
//
// -------------------------------------------------------------------------
/// @dev See {IERC165-supportsInterface}.
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721Common, ERC2981)
returns (bool)
{
return super.supportsInterface(interfaceId);
}
// -------------------------------------------------------------------------
//
// Errors
//
// -------------------------------------------------------------------------
error MintDisabled();
error TooManyMintsRequested();
error InsufficientTokensRemanining();
error InvalidPayment();
error SoldOut();
error InvalidSignature();
error ExeedsOwnerAllocation();
error NotAllowedToOwnerMint();
error NotAllowToChangeAddress();
error CodeStoreLocked();
} | // __ __ __
// | \ | \ \
// ______ ______ ____ _______ _| ▓▓_ __ __ ____| ▓▓\▓▓ ______
// / \| \ \ / \ ▓▓ \ | \ | \/ ▓▓ \/ \
// | ▓▓▓▓▓▓\ ▓▓▓▓▓▓\▓▓▓▓\ | ▓▓▓▓▓▓▓\▓▓▓▓▓▓ | ▓▓ | ▓▓ ▓▓▓▓▓▓▓ ▓▓ ▓▓▓▓▓▓\
// | ▓▓ | ▓▓ ▓▓ | ▓▓ | ▓▓ \▓▓ \ | ▓▓ __| ▓▓ | ▓▓ ▓▓ | ▓▓ ▓▓ ▓▓ | ▓▓
// | ▓▓__| ▓▓ ▓▓ | ▓▓ | ▓▓__ _\▓▓▓▓▓▓\ | ▓▓| \ ▓▓__/ ▓▓ ▓▓__| ▓▓ ▓▓ ▓▓__/ ▓▓
// \▓▓ ▓▓ ▓▓ | ▓▓ | ▓▓ \ | ▓▓ \▓▓ ▓▓\▓▓ ▓▓\▓▓ ▓▓ ▓▓\▓▓ ▓▓
// _\▓▓▓▓▓▓▓\▓▓ \▓▓ \▓▓\▓▓ \▓▓▓▓▓▓▓ \▓▓▓▓ \▓▓▓▓▓▓ \▓▓▓▓▓▓▓\▓▓ \▓▓▓▓▓▓
// | \__| ▓▓
// \▓▓ ▓▓
// \▓▓▓▓▓▓
// | LineComment | _processMint | function _processMint(address to, uint32 num) internal {
uint32 supply = totalSupply;
for (uint256 i = 0; i < num; i++) {
if (MAX_NUM_TOKENS <= supply) revert SoldOut();
ERC721._safeMint(to, supply);
supply++;
}
totalSupply = supply;
}
| /// @notice Mints new tokens for the recipient. | NatSpecSingleLine | v0.8.11+commit.d7f03943 | Unlicense | {
"func_code_index": [
6455,
6766
]
} | 2,102 |
|
GmStudioMindTheGap | contracts/collections/MindTheGap/MindTheGap.sol | 0x0e42ffbac75bcc30cd0015f8aaa608539ba35fbb | Solidity | GmStudioMindTheGap | contract GmStudioMindTheGap is
ERC721Common,
ReentrancyGuard,
ERC2981SinglePercentual
{
using EnumerableSet for EnumerableSet.AddressSet;
using SignatureChecker for EnumerableSet.AddressSet;
using Address for address payable;
/// @notice Price for minting
uint256 public constant MINT_PRICE = 0.15 ether;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitter;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitterRoyalties;
/// @notice Total maximum amount of tokens
uint32 public constant MAX_NUM_TOKENS = 999;
/// @notice Max number of mints per transaction.
/// @dev Only for public mints.
uint32 public constant MAX_MINT_PER_TX = 1;
/// @notice Number of mints throught the signed minting interface.
uint32 internal constant NUM_SIGNED_MINTS = 300;
/// @notice Number of mints for reserved the studio.
uint32 internal constant NUM_RESERVED_MINTS = 1;
/// @notice Currently minted supply of tokens
uint32 public totalSupply;
/// @notice Counter for the remaining signed mints
uint32 internal numSignedMintsRemaining;
/// @notice Locks the mintReserve function
bool internal reserveMinted;
/// @notice Locks the code storing function
bool internal codeStoreLocked;
/// @notice Timestamps to enables/eisables minting interfaces
/// @dev The following order is assumed
/// signedMintOpeningTimestamp < publicMintOpeningTimestamp < mintClosingTimestamp
struct MintConfig {
uint64 signedMintOpeningTimestamp;
uint64 publicMintOpeningTimestamp;
uint64 mintClosingTimestamp;
}
/// @notice The minting configuration
MintConfig public mintConfig;
/// @notice Stores the number of tokens minted from a signature
/// @dev Used in mintSigned
mapping(bytes32 => uint256) public numSignedMintsFrom;
/// @notice Signature signers for the early access phase.
/// @dev Removing signers invalidates the corresponding signatures.
EnumerableSet.AddressSet private _signers;
/// @notice tokenURI() base path.
/// @dev Without trailing slash
string internal _baseTokenURI;
constructor(
address newOwner,
address signer,
string memory baseTokenURI,
address[] memory payees,
uint256[] memory shares,
uint256[] memory sharesRoyalties
) ERC721Common("Mind the Gap by MountVitruvius", "MTG") {
_signers.add(signer);
_baseTokenURI = baseTokenURI;
paymentSplitter = payable(
PaymentSplitterDeployer.instance().deploy(payees, shares)
);
paymentSplitterRoyalties = payable(
PaymentSplitterDeployer.instance().deploy(payees, sharesRoyalties)
);
_setRoyaltyPercentage(750);
_setRoyaltyReceiver(paymentSplitterRoyalties);
numSignedMintsRemaining = NUM_SIGNED_MINTS;
transferOwnership(newOwner);
}
// -------------------------------------------------------------------------
//
// Minting
//
// -------------------------------------------------------------------------
/// @notice Toggle minting relevant flags.
function setMintConfig(MintConfig calldata config) external onlyOwner {
mintConfig = config;
}
/// @dev Reverts if we are not in the signed minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringSignedMintingPeriod() {
if (
block.timestamp < mintConfig.signedMintOpeningTimestamp ||
block.timestamp > mintConfig.publicMintOpeningTimestamp
) revert MintDisabled();
_;
}
/// @dev Reverts if we are not in the public minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringPublicMintingPeriod() {
if (
block.timestamp < mintConfig.publicMintOpeningTimestamp ||
block.timestamp > mintConfig.mintClosingTimestamp
) revert MintDisabled();
_;
}
/// @notice Mints tokens to a given address using a signed message.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
/// @param numMax Max number of tokens that can be minted to the receiver
/// @param signature to prove that the receiver is allowed to get mints.
/// @dev The signed messages is generated from `to || numMax`.
function mintSigned(
address to,
uint32 num,
uint32 numMax,
uint256 nonce,
bytes calldata signature
) external payable nonReentrant onlyDuringSignedMintingPeriod {
bytes32 message = ECDSA.toEthSignedMessageHash(
abi.encodePacked(to, numMax, nonce)
);
if (num + numSignedMintsFrom[message] > numMax)
revert TooManyMintsRequested();
if (num > numSignedMintsRemaining)
revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_signers.requireValidSignature(message, signature);
numSignedMintsFrom[message] += num;
numSignedMintsRemaining -= num;
_processPayment();
_processMint(to, num);
}
/// @notice Mints tokens to a given address.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
function mintPublic(address to, uint32 num)
external
payable
nonReentrant
onlyDuringPublicMintingPeriod
{
if (num > MAX_MINT_PER_TX) revert TooManyMintsRequested();
uint256 numRemaining = MAX_NUM_TOKENS - totalSupply;
if (num > numRemaining) revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_processPayment();
_processMint(to, num);
}
/// @notice Mints the DAO allocated tokens.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
function mintReserve(address to) external onlyOwner {
if (reserveMinted) revert MintDisabled();
reserveMinted = true;
_processMint(to, NUM_RESERVED_MINTS);
}
/// @notice Mints new tokens for the recipient.
function _processMint(address to, uint32 num) internal {
uint32 supply = totalSupply;
for (uint256 i = 0; i < num; i++) {
if (MAX_NUM_TOKENS <= supply) revert SoldOut();
ERC721._safeMint(to, supply);
supply++;
}
totalSupply = supply;
}
// -------------------------------------------------------------------------
//
// Signature validataion
//
// -------------------------------------------------------------------------
/// @notice Removes and adds addresses to the set of allowed signers.
/// @dev Removal is performed before addition.
function changeSigners(
address[] calldata delSigners,
address[] calldata addSigners
) external onlyOwner {
for (uint256 idx; idx < delSigners.length; ++idx) {
_signers.remove(delSigners[idx]);
}
for (uint256 idx; idx < addSigners.length; ++idx) {
_signers.add(addSigners[idx]);
}
}
/// @notice Returns the addresses that are used for signature verification
function getSigners() external view returns (address[] memory signers) {
uint256 len = _signers.length();
signers = new address[](len);
for (uint256 idx = 0; idx < len; ++idx) {
signers[idx] = _signers.at(idx);
}
}
// -------------------------------------------------------------------------
//
// Payment
//
// -------------------------------------------------------------------------
/// @notice Default function for receiving funds
/// @dev This enables the contract to be used as splitter for royalties.
receive() external payable {
_processPayment();
}
/// @notice Processes an incoming payment and sends it to the payment
/// splitter.
function _processPayment() internal {
paymentSplitter.sendValue(msg.value);
}
// -------------------------------------------------------------------------
//
// Metadata
//
// -------------------------------------------------------------------------
/// @notice This function is intended to store (genart) code onchain in
// calldata.
function storeCode(bytes calldata) external {
if (
codeStoreLocked ||
(mintConfig.signedMintOpeningTimestamp > 0 &&
block.timestamp > mintConfig.signedMintOpeningTimestamp)
) revert CodeStoreLocked();
codeStoreLocked = true;
}
/// @notice Change tokenURI() base path.
/// @param uri The new base path (must not contain trailing slash)
function setBaseTokenURI(string calldata uri) external onlyOwner {
_baseTokenURI = uri;
}
/// @notice Returns the URI for token metadata.
function tokenURI(uint256 tokenId)
public
view
override
tokenExists(tokenId)
returns (string memory)
{
return
string(
abi.encodePacked(
_baseTokenURI,
"/",
Strings.toString(tokenId),
".json"
)
);
}
// -------------------------------------------------------------------------
//
// Internals
//
// -------------------------------------------------------------------------
/// @dev See {IERC165-supportsInterface}.
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721Common, ERC2981)
returns (bool)
{
return super.supportsInterface(interfaceId);
}
// -------------------------------------------------------------------------
//
// Errors
//
// -------------------------------------------------------------------------
error MintDisabled();
error TooManyMintsRequested();
error InsufficientTokensRemanining();
error InvalidPayment();
error SoldOut();
error InvalidSignature();
error ExeedsOwnerAllocation();
error NotAllowedToOwnerMint();
error NotAllowToChangeAddress();
error CodeStoreLocked();
} | // __ __ __
// | \ | \ \
// ______ ______ ____ _______ _| ▓▓_ __ __ ____| ▓▓\▓▓ ______
// / \| \ \ / \ ▓▓ \ | \ | \/ ▓▓ \/ \
// | ▓▓▓▓▓▓\ ▓▓▓▓▓▓\▓▓▓▓\ | ▓▓▓▓▓▓▓\▓▓▓▓▓▓ | ▓▓ | ▓▓ ▓▓▓▓▓▓▓ ▓▓ ▓▓▓▓▓▓\
// | ▓▓ | ▓▓ ▓▓ | ▓▓ | ▓▓ \▓▓ \ | ▓▓ __| ▓▓ | ▓▓ ▓▓ | ▓▓ ▓▓ ▓▓ | ▓▓
// | ▓▓__| ▓▓ ▓▓ | ▓▓ | ▓▓__ _\▓▓▓▓▓▓\ | ▓▓| \ ▓▓__/ ▓▓ ▓▓__| ▓▓ ▓▓ ▓▓__/ ▓▓
// \▓▓ ▓▓ ▓▓ | ▓▓ | ▓▓ \ | ▓▓ \▓▓ ▓▓\▓▓ ▓▓\▓▓ ▓▓ ▓▓\▓▓ ▓▓
// _\▓▓▓▓▓▓▓\▓▓ \▓▓ \▓▓\▓▓ \▓▓▓▓▓▓▓ \▓▓▓▓ \▓▓▓▓▓▓ \▓▓▓▓▓▓▓\▓▓ \▓▓▓▓▓▓
// | \__| ▓▓
// \▓▓ ▓▓
// \▓▓▓▓▓▓
// | LineComment | changeSigners | function changeSigners(
address[] calldata delSigners,
address[] calldata addSigners
) external onlyOwner {
for (uint256 idx; idx < delSigners.length; ++idx) {
_signers.remove(delSigners[idx]);
}
for (uint256 idx; idx < addSigners.length; ++idx) {
_signers.add(addSigners[idx]);
}
}
| /// @notice Removes and adds addresses to the set of allowed signers.
/// @dev Removal is performed before addition. | NatSpecSingleLine | v0.8.11+commit.d7f03943 | Unlicense | {
"func_code_index": [
7100,
7466
]
} | 2,103 |
|
GmStudioMindTheGap | contracts/collections/MindTheGap/MindTheGap.sol | 0x0e42ffbac75bcc30cd0015f8aaa608539ba35fbb | Solidity | GmStudioMindTheGap | contract GmStudioMindTheGap is
ERC721Common,
ReentrancyGuard,
ERC2981SinglePercentual
{
using EnumerableSet for EnumerableSet.AddressSet;
using SignatureChecker for EnumerableSet.AddressSet;
using Address for address payable;
/// @notice Price for minting
uint256 public constant MINT_PRICE = 0.15 ether;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitter;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitterRoyalties;
/// @notice Total maximum amount of tokens
uint32 public constant MAX_NUM_TOKENS = 999;
/// @notice Max number of mints per transaction.
/// @dev Only for public mints.
uint32 public constant MAX_MINT_PER_TX = 1;
/// @notice Number of mints throught the signed minting interface.
uint32 internal constant NUM_SIGNED_MINTS = 300;
/// @notice Number of mints for reserved the studio.
uint32 internal constant NUM_RESERVED_MINTS = 1;
/// @notice Currently minted supply of tokens
uint32 public totalSupply;
/// @notice Counter for the remaining signed mints
uint32 internal numSignedMintsRemaining;
/// @notice Locks the mintReserve function
bool internal reserveMinted;
/// @notice Locks the code storing function
bool internal codeStoreLocked;
/// @notice Timestamps to enables/eisables minting interfaces
/// @dev The following order is assumed
/// signedMintOpeningTimestamp < publicMintOpeningTimestamp < mintClosingTimestamp
struct MintConfig {
uint64 signedMintOpeningTimestamp;
uint64 publicMintOpeningTimestamp;
uint64 mintClosingTimestamp;
}
/// @notice The minting configuration
MintConfig public mintConfig;
/// @notice Stores the number of tokens minted from a signature
/// @dev Used in mintSigned
mapping(bytes32 => uint256) public numSignedMintsFrom;
/// @notice Signature signers for the early access phase.
/// @dev Removing signers invalidates the corresponding signatures.
EnumerableSet.AddressSet private _signers;
/// @notice tokenURI() base path.
/// @dev Without trailing slash
string internal _baseTokenURI;
constructor(
address newOwner,
address signer,
string memory baseTokenURI,
address[] memory payees,
uint256[] memory shares,
uint256[] memory sharesRoyalties
) ERC721Common("Mind the Gap by MountVitruvius", "MTG") {
_signers.add(signer);
_baseTokenURI = baseTokenURI;
paymentSplitter = payable(
PaymentSplitterDeployer.instance().deploy(payees, shares)
);
paymentSplitterRoyalties = payable(
PaymentSplitterDeployer.instance().deploy(payees, sharesRoyalties)
);
_setRoyaltyPercentage(750);
_setRoyaltyReceiver(paymentSplitterRoyalties);
numSignedMintsRemaining = NUM_SIGNED_MINTS;
transferOwnership(newOwner);
}
// -------------------------------------------------------------------------
//
// Minting
//
// -------------------------------------------------------------------------
/// @notice Toggle minting relevant flags.
function setMintConfig(MintConfig calldata config) external onlyOwner {
mintConfig = config;
}
/// @dev Reverts if we are not in the signed minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringSignedMintingPeriod() {
if (
block.timestamp < mintConfig.signedMintOpeningTimestamp ||
block.timestamp > mintConfig.publicMintOpeningTimestamp
) revert MintDisabled();
_;
}
/// @dev Reverts if we are not in the public minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringPublicMintingPeriod() {
if (
block.timestamp < mintConfig.publicMintOpeningTimestamp ||
block.timestamp > mintConfig.mintClosingTimestamp
) revert MintDisabled();
_;
}
/// @notice Mints tokens to a given address using a signed message.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
/// @param numMax Max number of tokens that can be minted to the receiver
/// @param signature to prove that the receiver is allowed to get mints.
/// @dev The signed messages is generated from `to || numMax`.
function mintSigned(
address to,
uint32 num,
uint32 numMax,
uint256 nonce,
bytes calldata signature
) external payable nonReentrant onlyDuringSignedMintingPeriod {
bytes32 message = ECDSA.toEthSignedMessageHash(
abi.encodePacked(to, numMax, nonce)
);
if (num + numSignedMintsFrom[message] > numMax)
revert TooManyMintsRequested();
if (num > numSignedMintsRemaining)
revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_signers.requireValidSignature(message, signature);
numSignedMintsFrom[message] += num;
numSignedMintsRemaining -= num;
_processPayment();
_processMint(to, num);
}
/// @notice Mints tokens to a given address.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
function mintPublic(address to, uint32 num)
external
payable
nonReentrant
onlyDuringPublicMintingPeriod
{
if (num > MAX_MINT_PER_TX) revert TooManyMintsRequested();
uint256 numRemaining = MAX_NUM_TOKENS - totalSupply;
if (num > numRemaining) revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_processPayment();
_processMint(to, num);
}
/// @notice Mints the DAO allocated tokens.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
function mintReserve(address to) external onlyOwner {
if (reserveMinted) revert MintDisabled();
reserveMinted = true;
_processMint(to, NUM_RESERVED_MINTS);
}
/// @notice Mints new tokens for the recipient.
function _processMint(address to, uint32 num) internal {
uint32 supply = totalSupply;
for (uint256 i = 0; i < num; i++) {
if (MAX_NUM_TOKENS <= supply) revert SoldOut();
ERC721._safeMint(to, supply);
supply++;
}
totalSupply = supply;
}
// -------------------------------------------------------------------------
//
// Signature validataion
//
// -------------------------------------------------------------------------
/// @notice Removes and adds addresses to the set of allowed signers.
/// @dev Removal is performed before addition.
function changeSigners(
address[] calldata delSigners,
address[] calldata addSigners
) external onlyOwner {
for (uint256 idx; idx < delSigners.length; ++idx) {
_signers.remove(delSigners[idx]);
}
for (uint256 idx; idx < addSigners.length; ++idx) {
_signers.add(addSigners[idx]);
}
}
/// @notice Returns the addresses that are used for signature verification
function getSigners() external view returns (address[] memory signers) {
uint256 len = _signers.length();
signers = new address[](len);
for (uint256 idx = 0; idx < len; ++idx) {
signers[idx] = _signers.at(idx);
}
}
// -------------------------------------------------------------------------
//
// Payment
//
// -------------------------------------------------------------------------
/// @notice Default function for receiving funds
/// @dev This enables the contract to be used as splitter for royalties.
receive() external payable {
_processPayment();
}
/// @notice Processes an incoming payment and sends it to the payment
/// splitter.
function _processPayment() internal {
paymentSplitter.sendValue(msg.value);
}
// -------------------------------------------------------------------------
//
// Metadata
//
// -------------------------------------------------------------------------
/// @notice This function is intended to store (genart) code onchain in
// calldata.
function storeCode(bytes calldata) external {
if (
codeStoreLocked ||
(mintConfig.signedMintOpeningTimestamp > 0 &&
block.timestamp > mintConfig.signedMintOpeningTimestamp)
) revert CodeStoreLocked();
codeStoreLocked = true;
}
/// @notice Change tokenURI() base path.
/// @param uri The new base path (must not contain trailing slash)
function setBaseTokenURI(string calldata uri) external onlyOwner {
_baseTokenURI = uri;
}
/// @notice Returns the URI for token metadata.
function tokenURI(uint256 tokenId)
public
view
override
tokenExists(tokenId)
returns (string memory)
{
return
string(
abi.encodePacked(
_baseTokenURI,
"/",
Strings.toString(tokenId),
".json"
)
);
}
// -------------------------------------------------------------------------
//
// Internals
//
// -------------------------------------------------------------------------
/// @dev See {IERC165-supportsInterface}.
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721Common, ERC2981)
returns (bool)
{
return super.supportsInterface(interfaceId);
}
// -------------------------------------------------------------------------
//
// Errors
//
// -------------------------------------------------------------------------
error MintDisabled();
error TooManyMintsRequested();
error InsufficientTokensRemanining();
error InvalidPayment();
error SoldOut();
error InvalidSignature();
error ExeedsOwnerAllocation();
error NotAllowedToOwnerMint();
error NotAllowToChangeAddress();
error CodeStoreLocked();
} | // __ __ __
// | \ | \ \
// ______ ______ ____ _______ _| ▓▓_ __ __ ____| ▓▓\▓▓ ______
// / \| \ \ / \ ▓▓ \ | \ | \/ ▓▓ \/ \
// | ▓▓▓▓▓▓\ ▓▓▓▓▓▓\▓▓▓▓\ | ▓▓▓▓▓▓▓\▓▓▓▓▓▓ | ▓▓ | ▓▓ ▓▓▓▓▓▓▓ ▓▓ ▓▓▓▓▓▓\
// | ▓▓ | ▓▓ ▓▓ | ▓▓ | ▓▓ \▓▓ \ | ▓▓ __| ▓▓ | ▓▓ ▓▓ | ▓▓ ▓▓ ▓▓ | ▓▓
// | ▓▓__| ▓▓ ▓▓ | ▓▓ | ▓▓__ _\▓▓▓▓▓▓\ | ▓▓| \ ▓▓__/ ▓▓ ▓▓__| ▓▓ ▓▓ ▓▓__/ ▓▓
// \▓▓ ▓▓ ▓▓ | ▓▓ | ▓▓ \ | ▓▓ \▓▓ ▓▓\▓▓ ▓▓\▓▓ ▓▓ ▓▓\▓▓ ▓▓
// _\▓▓▓▓▓▓▓\▓▓ \▓▓ \▓▓\▓▓ \▓▓▓▓▓▓▓ \▓▓▓▓ \▓▓▓▓▓▓ \▓▓▓▓▓▓▓\▓▓ \▓▓▓▓▓▓
// | \__| ▓▓
// \▓▓ ▓▓
// \▓▓▓▓▓▓
// | LineComment | getSigners | function getSigners() external view returns (address[] memory signers) {
uint256 len = _signers.length();
signers = new address[](len);
for (uint256 idx = 0; idx < len; ++idx) {
signers[idx] = _signers.at(idx);
}
}
| /// @notice Returns the addresses that are used for signature verification | NatSpecSingleLine | v0.8.11+commit.d7f03943 | Unlicense | {
"func_code_index": [
7547,
7813
]
} | 2,104 |
|
GmStudioMindTheGap | contracts/collections/MindTheGap/MindTheGap.sol | 0x0e42ffbac75bcc30cd0015f8aaa608539ba35fbb | Solidity | GmStudioMindTheGap | contract GmStudioMindTheGap is
ERC721Common,
ReentrancyGuard,
ERC2981SinglePercentual
{
using EnumerableSet for EnumerableSet.AddressSet;
using SignatureChecker for EnumerableSet.AddressSet;
using Address for address payable;
/// @notice Price for minting
uint256 public constant MINT_PRICE = 0.15 ether;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitter;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitterRoyalties;
/// @notice Total maximum amount of tokens
uint32 public constant MAX_NUM_TOKENS = 999;
/// @notice Max number of mints per transaction.
/// @dev Only for public mints.
uint32 public constant MAX_MINT_PER_TX = 1;
/// @notice Number of mints throught the signed minting interface.
uint32 internal constant NUM_SIGNED_MINTS = 300;
/// @notice Number of mints for reserved the studio.
uint32 internal constant NUM_RESERVED_MINTS = 1;
/// @notice Currently minted supply of tokens
uint32 public totalSupply;
/// @notice Counter for the remaining signed mints
uint32 internal numSignedMintsRemaining;
/// @notice Locks the mintReserve function
bool internal reserveMinted;
/// @notice Locks the code storing function
bool internal codeStoreLocked;
/// @notice Timestamps to enables/eisables minting interfaces
/// @dev The following order is assumed
/// signedMintOpeningTimestamp < publicMintOpeningTimestamp < mintClosingTimestamp
struct MintConfig {
uint64 signedMintOpeningTimestamp;
uint64 publicMintOpeningTimestamp;
uint64 mintClosingTimestamp;
}
/// @notice The minting configuration
MintConfig public mintConfig;
/// @notice Stores the number of tokens minted from a signature
/// @dev Used in mintSigned
mapping(bytes32 => uint256) public numSignedMintsFrom;
/// @notice Signature signers for the early access phase.
/// @dev Removing signers invalidates the corresponding signatures.
EnumerableSet.AddressSet private _signers;
/// @notice tokenURI() base path.
/// @dev Without trailing slash
string internal _baseTokenURI;
constructor(
address newOwner,
address signer,
string memory baseTokenURI,
address[] memory payees,
uint256[] memory shares,
uint256[] memory sharesRoyalties
) ERC721Common("Mind the Gap by MountVitruvius", "MTG") {
_signers.add(signer);
_baseTokenURI = baseTokenURI;
paymentSplitter = payable(
PaymentSplitterDeployer.instance().deploy(payees, shares)
);
paymentSplitterRoyalties = payable(
PaymentSplitterDeployer.instance().deploy(payees, sharesRoyalties)
);
_setRoyaltyPercentage(750);
_setRoyaltyReceiver(paymentSplitterRoyalties);
numSignedMintsRemaining = NUM_SIGNED_MINTS;
transferOwnership(newOwner);
}
// -------------------------------------------------------------------------
//
// Minting
//
// -------------------------------------------------------------------------
/// @notice Toggle minting relevant flags.
function setMintConfig(MintConfig calldata config) external onlyOwner {
mintConfig = config;
}
/// @dev Reverts if we are not in the signed minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringSignedMintingPeriod() {
if (
block.timestamp < mintConfig.signedMintOpeningTimestamp ||
block.timestamp > mintConfig.publicMintOpeningTimestamp
) revert MintDisabled();
_;
}
/// @dev Reverts if we are not in the public minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringPublicMintingPeriod() {
if (
block.timestamp < mintConfig.publicMintOpeningTimestamp ||
block.timestamp > mintConfig.mintClosingTimestamp
) revert MintDisabled();
_;
}
/// @notice Mints tokens to a given address using a signed message.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
/// @param numMax Max number of tokens that can be minted to the receiver
/// @param signature to prove that the receiver is allowed to get mints.
/// @dev The signed messages is generated from `to || numMax`.
function mintSigned(
address to,
uint32 num,
uint32 numMax,
uint256 nonce,
bytes calldata signature
) external payable nonReentrant onlyDuringSignedMintingPeriod {
bytes32 message = ECDSA.toEthSignedMessageHash(
abi.encodePacked(to, numMax, nonce)
);
if (num + numSignedMintsFrom[message] > numMax)
revert TooManyMintsRequested();
if (num > numSignedMintsRemaining)
revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_signers.requireValidSignature(message, signature);
numSignedMintsFrom[message] += num;
numSignedMintsRemaining -= num;
_processPayment();
_processMint(to, num);
}
/// @notice Mints tokens to a given address.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
function mintPublic(address to, uint32 num)
external
payable
nonReentrant
onlyDuringPublicMintingPeriod
{
if (num > MAX_MINT_PER_TX) revert TooManyMintsRequested();
uint256 numRemaining = MAX_NUM_TOKENS - totalSupply;
if (num > numRemaining) revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_processPayment();
_processMint(to, num);
}
/// @notice Mints the DAO allocated tokens.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
function mintReserve(address to) external onlyOwner {
if (reserveMinted) revert MintDisabled();
reserveMinted = true;
_processMint(to, NUM_RESERVED_MINTS);
}
/// @notice Mints new tokens for the recipient.
function _processMint(address to, uint32 num) internal {
uint32 supply = totalSupply;
for (uint256 i = 0; i < num; i++) {
if (MAX_NUM_TOKENS <= supply) revert SoldOut();
ERC721._safeMint(to, supply);
supply++;
}
totalSupply = supply;
}
// -------------------------------------------------------------------------
//
// Signature validataion
//
// -------------------------------------------------------------------------
/// @notice Removes and adds addresses to the set of allowed signers.
/// @dev Removal is performed before addition.
function changeSigners(
address[] calldata delSigners,
address[] calldata addSigners
) external onlyOwner {
for (uint256 idx; idx < delSigners.length; ++idx) {
_signers.remove(delSigners[idx]);
}
for (uint256 idx; idx < addSigners.length; ++idx) {
_signers.add(addSigners[idx]);
}
}
/// @notice Returns the addresses that are used for signature verification
function getSigners() external view returns (address[] memory signers) {
uint256 len = _signers.length();
signers = new address[](len);
for (uint256 idx = 0; idx < len; ++idx) {
signers[idx] = _signers.at(idx);
}
}
// -------------------------------------------------------------------------
//
// Payment
//
// -------------------------------------------------------------------------
/// @notice Default function for receiving funds
/// @dev This enables the contract to be used as splitter for royalties.
receive() external payable {
_processPayment();
}
/// @notice Processes an incoming payment and sends it to the payment
/// splitter.
function _processPayment() internal {
paymentSplitter.sendValue(msg.value);
}
// -------------------------------------------------------------------------
//
// Metadata
//
// -------------------------------------------------------------------------
/// @notice This function is intended to store (genart) code onchain in
// calldata.
function storeCode(bytes calldata) external {
if (
codeStoreLocked ||
(mintConfig.signedMintOpeningTimestamp > 0 &&
block.timestamp > mintConfig.signedMintOpeningTimestamp)
) revert CodeStoreLocked();
codeStoreLocked = true;
}
/// @notice Change tokenURI() base path.
/// @param uri The new base path (must not contain trailing slash)
function setBaseTokenURI(string calldata uri) external onlyOwner {
_baseTokenURI = uri;
}
/// @notice Returns the URI for token metadata.
function tokenURI(uint256 tokenId)
public
view
override
tokenExists(tokenId)
returns (string memory)
{
return
string(
abi.encodePacked(
_baseTokenURI,
"/",
Strings.toString(tokenId),
".json"
)
);
}
// -------------------------------------------------------------------------
//
// Internals
//
// -------------------------------------------------------------------------
/// @dev See {IERC165-supportsInterface}.
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721Common, ERC2981)
returns (bool)
{
return super.supportsInterface(interfaceId);
}
// -------------------------------------------------------------------------
//
// Errors
//
// -------------------------------------------------------------------------
error MintDisabled();
error TooManyMintsRequested();
error InsufficientTokensRemanining();
error InvalidPayment();
error SoldOut();
error InvalidSignature();
error ExeedsOwnerAllocation();
error NotAllowedToOwnerMint();
error NotAllowToChangeAddress();
error CodeStoreLocked();
} | // __ __ __
// | \ | \ \
// ______ ______ ____ _______ _| ▓▓_ __ __ ____| ▓▓\▓▓ ______
// / \| \ \ / \ ▓▓ \ | \ | \/ ▓▓ \/ \
// | ▓▓▓▓▓▓\ ▓▓▓▓▓▓\▓▓▓▓\ | ▓▓▓▓▓▓▓\▓▓▓▓▓▓ | ▓▓ | ▓▓ ▓▓▓▓▓▓▓ ▓▓ ▓▓▓▓▓▓\
// | ▓▓ | ▓▓ ▓▓ | ▓▓ | ▓▓ \▓▓ \ | ▓▓ __| ▓▓ | ▓▓ ▓▓ | ▓▓ ▓▓ ▓▓ | ▓▓
// | ▓▓__| ▓▓ ▓▓ | ▓▓ | ▓▓__ _\▓▓▓▓▓▓\ | ▓▓| \ ▓▓__/ ▓▓ ▓▓__| ▓▓ ▓▓ ▓▓__/ ▓▓
// \▓▓ ▓▓ ▓▓ | ▓▓ | ▓▓ \ | ▓▓ \▓▓ ▓▓\▓▓ ▓▓\▓▓ ▓▓ ▓▓\▓▓ ▓▓
// _\▓▓▓▓▓▓▓\▓▓ \▓▓ \▓▓\▓▓ \▓▓▓▓▓▓▓ \▓▓▓▓ \▓▓▓▓▓▓ \▓▓▓▓▓▓▓\▓▓ \▓▓▓▓▓▓
// | \__| ▓▓
// \▓▓ ▓▓
// \▓▓▓▓▓▓
// | LineComment | /// @notice Default function for receiving funds
/// @dev This enables the contract to be used as splitter for royalties. | NatSpecSingleLine | v0.8.11+commit.d7f03943 | Unlicense | {
"func_code_index": [
8138,
8203
]
} | 2,105 |
|||
GmStudioMindTheGap | contracts/collections/MindTheGap/MindTheGap.sol | 0x0e42ffbac75bcc30cd0015f8aaa608539ba35fbb | Solidity | GmStudioMindTheGap | contract GmStudioMindTheGap is
ERC721Common,
ReentrancyGuard,
ERC2981SinglePercentual
{
using EnumerableSet for EnumerableSet.AddressSet;
using SignatureChecker for EnumerableSet.AddressSet;
using Address for address payable;
/// @notice Price for minting
uint256 public constant MINT_PRICE = 0.15 ether;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitter;
/// @notice Splits payments between the Studio and the artist.
address payable public immutable paymentSplitterRoyalties;
/// @notice Total maximum amount of tokens
uint32 public constant MAX_NUM_TOKENS = 999;
/// @notice Max number of mints per transaction.
/// @dev Only for public mints.
uint32 public constant MAX_MINT_PER_TX = 1;
/// @notice Number of mints throught the signed minting interface.
uint32 internal constant NUM_SIGNED_MINTS = 300;
/// @notice Number of mints for reserved the studio.
uint32 internal constant NUM_RESERVED_MINTS = 1;
/// @notice Currently minted supply of tokens
uint32 public totalSupply;
/// @notice Counter for the remaining signed mints
uint32 internal numSignedMintsRemaining;
/// @notice Locks the mintReserve function
bool internal reserveMinted;
/// @notice Locks the code storing function
bool internal codeStoreLocked;
/// @notice Timestamps to enables/eisables minting interfaces
/// @dev The following order is assumed
/// signedMintOpeningTimestamp < publicMintOpeningTimestamp < mintClosingTimestamp
struct MintConfig {
uint64 signedMintOpeningTimestamp;
uint64 publicMintOpeningTimestamp;
uint64 mintClosingTimestamp;
}
/// @notice The minting configuration
MintConfig public mintConfig;
/// @notice Stores the number of tokens minted from a signature
/// @dev Used in mintSigned
mapping(bytes32 => uint256) public numSignedMintsFrom;
/// @notice Signature signers for the early access phase.
/// @dev Removing signers invalidates the corresponding signatures.
EnumerableSet.AddressSet private _signers;
/// @notice tokenURI() base path.
/// @dev Without trailing slash
string internal _baseTokenURI;
constructor(
address newOwner,
address signer,
string memory baseTokenURI,
address[] memory payees,
uint256[] memory shares,
uint256[] memory sharesRoyalties
) ERC721Common("Mind the Gap by MountVitruvius", "MTG") {
_signers.add(signer);
_baseTokenURI = baseTokenURI;
paymentSplitter = payable(
PaymentSplitterDeployer.instance().deploy(payees, shares)
);
paymentSplitterRoyalties = payable(
PaymentSplitterDeployer.instance().deploy(payees, sharesRoyalties)
);
_setRoyaltyPercentage(750);
_setRoyaltyReceiver(paymentSplitterRoyalties);
numSignedMintsRemaining = NUM_SIGNED_MINTS;
transferOwnership(newOwner);
}
// -------------------------------------------------------------------------
//
// Minting
//
// -------------------------------------------------------------------------
/// @notice Toggle minting relevant flags.
function setMintConfig(MintConfig calldata config) external onlyOwner {
mintConfig = config;
}
/// @dev Reverts if we are not in the signed minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringSignedMintingPeriod() {
if (
block.timestamp < mintConfig.signedMintOpeningTimestamp ||
block.timestamp > mintConfig.publicMintOpeningTimestamp
) revert MintDisabled();
_;
}
/// @dev Reverts if we are not in the public minting window or the if
/// `mintConfig` has not been set yet.
modifier onlyDuringPublicMintingPeriod() {
if (
block.timestamp < mintConfig.publicMintOpeningTimestamp ||
block.timestamp > mintConfig.mintClosingTimestamp
) revert MintDisabled();
_;
}
/// @notice Mints tokens to a given address using a signed message.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
/// @param numMax Max number of tokens that can be minted to the receiver
/// @param signature to prove that the receiver is allowed to get mints.
/// @dev The signed messages is generated from `to || numMax`.
function mintSigned(
address to,
uint32 num,
uint32 numMax,
uint256 nonce,
bytes calldata signature
) external payable nonReentrant onlyDuringSignedMintingPeriod {
bytes32 message = ECDSA.toEthSignedMessageHash(
abi.encodePacked(to, numMax, nonce)
);
if (num + numSignedMintsFrom[message] > numMax)
revert TooManyMintsRequested();
if (num > numSignedMintsRemaining)
revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_signers.requireValidSignature(message, signature);
numSignedMintsFrom[message] += num;
numSignedMintsRemaining -= num;
_processPayment();
_processMint(to, num);
}
/// @notice Mints tokens to a given address.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
/// @param num Number of tokens to be minted.
function mintPublic(address to, uint32 num)
external
payable
nonReentrant
onlyDuringPublicMintingPeriod
{
if (num > MAX_MINT_PER_TX) revert TooManyMintsRequested();
uint256 numRemaining = MAX_NUM_TOKENS - totalSupply;
if (num > numRemaining) revert InsufficientTokensRemanining();
if (num * MINT_PRICE != msg.value) revert InvalidPayment();
_processPayment();
_processMint(to, num);
}
/// @notice Mints the DAO allocated tokens.
/// @dev The minter might be different than the receiver.
/// @param to Token receiver
function mintReserve(address to) external onlyOwner {
if (reserveMinted) revert MintDisabled();
reserveMinted = true;
_processMint(to, NUM_RESERVED_MINTS);
}
/// @notice Mints new tokens for the recipient.
function _processMint(address to, uint32 num) internal {
uint32 supply = totalSupply;
for (uint256 i = 0; i < num; i++) {
if (MAX_NUM_TOKENS <= supply) revert SoldOut();
ERC721._safeMint(to, supply);
supply++;
}
totalSupply = supply;
}
// -------------------------------------------------------------------------
//
// Signature validataion
//
// -------------------------------------------------------------------------
/// @notice Removes and adds addresses to the set of allowed signers.
/// @dev Removal is performed before addition.
function changeSigners(
address[] calldata delSigners,
address[] calldata addSigners
) external onlyOwner {
for (uint256 idx; idx < delSigners.length; ++idx) {
_signers.remove(delSigners[idx]);
}
for (uint256 idx; idx < addSigners.length; ++idx) {
_signers.add(addSigners[idx]);
}
}
/// @notice Returns the addresses that are used for signature verification
function getSigners() external view returns (address[] memory signers) {
uint256 len = _signers.length();
signers = new address[](len);
for (uint256 idx = 0; idx < len; ++idx) {
signers[idx] = _signers.at(idx);
}
}
// -------------------------------------------------------------------------
//
// Payment
//
// -------------------------------------------------------------------------
/// @notice Default function for receiving funds
/// @dev This enables the contract to be used as splitter for royalties.
receive() external payable {
_processPayment();
}
/// @notice Processes an incoming payment and sends it to the payment
/// splitter.
function _processPayment() internal {
paymentSplitter.sendValue(msg.value);
}
// -------------------------------------------------------------------------
//
// Metadata
//
// -------------------------------------------------------------------------
/// @notice This function is intended to store (genart) code onchain in
// calldata.
function storeCode(bytes calldata) external {
if (
codeStoreLocked ||
(mintConfig.signedMintOpeningTimestamp > 0 &&
block.timestamp > mintConfig.signedMintOpeningTimestamp)
) revert CodeStoreLocked();
codeStoreLocked = true;
}
/// @notice Change tokenURI() base path.
/// @param uri The new base path (must not contain trailing slash)
function setBaseTokenURI(string calldata uri) external onlyOwner {
_baseTokenURI = uri;
}
/// @notice Returns the URI for token metadata.
function tokenURI(uint256 tokenId)
public
view
override
tokenExists(tokenId)
returns (string memory)
{
return
string(
abi.encodePacked(
_baseTokenURI,
"/",
Strings.toString(tokenId),
".json"
)
);
}
// -------------------------------------------------------------------------
//
// Internals
//
// -------------------------------------------------------------------------
/// @dev See {IERC165-supportsInterface}.
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721Common, ERC2981)
returns (bool)
{
return super.supportsInterface(interfaceId);
}
// -------------------------------------------------------------------------
//
// Errors
//
// -------------------------------------------------------------------------
error MintDisabled();
error TooManyMintsRequested();
error InsufficientTokensRemanining();
error InvalidPayment();
error SoldOut();
error InvalidSignature();
error ExeedsOwnerAllocation();
error NotAllowedToOwnerMint();
error NotAllowToChangeAddress();
error CodeStoreLocked();
} | // __ __ __
// | \ | \ \
// ______ ______ ____ _______ _| ▓▓_ __ __ ____| ▓▓\▓▓ ______
// / \| \ \ / \ ▓▓ \ | \ | \/ ▓▓ \/ \
// | ▓▓▓▓▓▓\ ▓▓▓▓▓▓\▓▓▓▓\ | ▓▓▓▓▓▓▓\▓▓▓▓▓▓ | ▓▓ | ▓▓ ▓▓▓▓▓▓▓ ▓▓ ▓▓▓▓▓▓\
// | ▓▓ | ▓▓ ▓▓ | ▓▓ | ▓▓ \▓▓ \ | ▓▓ __| ▓▓ | ▓▓ ▓▓ | ▓▓ ▓▓ ▓▓ | ▓▓
// | ▓▓__| ▓▓ ▓▓ | ▓▓ | ▓▓__ _\▓▓▓▓▓▓\ | ▓▓| \ ▓▓__/ ▓▓ ▓▓__| ▓▓ ▓▓ ▓▓__/ ▓▓
// \▓▓ ▓▓ ▓▓ | ▓▓ | ▓▓ \ | ▓▓ \▓▓ ▓▓\▓▓ ▓▓\▓▓ ▓▓ ▓▓\▓▓ ▓▓
// _\▓▓▓▓▓▓▓\▓▓ \▓▓ \▓▓\▓▓ \▓▓▓▓▓▓▓ \▓▓▓▓ \▓▓▓▓▓▓ \▓▓▓▓▓▓▓\▓▓ \▓▓▓▓▓▓
// | \__| ▓▓
// \▓▓ ▓▓
// \▓▓▓▓▓▓
// | LineComment | _processPayment | function _processPayment() internal {
paymentSplitter.sendValue(msg.value);
}
| /// @notice Processes an incoming payment and sends it to the payment
/// splitter. | NatSpecSingleLine | v0.8.11+commit.d7f03943 | Unlicense | {
"func_code_index": [
8297,
8390
]
} | 2,106 |
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