text: /*
   * Copyright (C) 2007-2011 Google Inc. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   *     * Redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above
   * copyright notice, this list of conditions and the following disclaimer
   * in the documentation and/or other materials provided with the
   * distribution.
   *     * Neither the name of Google Inc. nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #include "config.h"
  #include "bindings/core/v8/V8InjectedScriptHost.h"
  
  #include "bindings/core/v8/BindingSecurity.h"
  #include "bindings/core/v8/ExceptionState.h"
  #include "bindings/core/v8/ScriptDebugServer.h"
  #include "bindings/core/v8/ScriptValue.h"
  #include "bindings/core/v8/V8AbstractEventListener.h"
  #include "bindings/core/v8/V8Binding.h"
  #include "bindings/core/v8/V8DOMException.h"
  #include "bindings/core/v8/V8DOMTokenList.h"
  #include "bindings/core/v8/V8EventTarget.h"
  #include "bindings/core/v8/V8HTMLAllCollection.h"
  #include "bindings/core/v8/V8HTMLCollection.h"
  #include "bindings/core/v8/V8Node.h"
  #include "bindings/core/v8/V8NodeList.h"
  #include "bindings/core/v8/V8ScriptRunner.h"
  #include "bindings/core/v8/V8Storage.h"
  #include "core/events/EventTarget.h"
  #include "core/frame/LocalDOMWindow.h"
  #include "core/inspector/InjectedScript.h"
  #include "core/inspector/InjectedScriptHost.h"
  #include "core/inspector/InspectorDOMAgent.h"
  #include "core/inspector/JavaScriptCallFrame.h"
  #include "platform/JSONValues.h"
  
  namespace blink {
  
  Node* InjectedScriptHost::scriptValueAsNode(ScriptState* scriptState, ScriptValue value)
  {
      ScriptState::Scope scope(scriptState);
      if (!value.isObject() || value.isNull())
          return 0;
      return V8Node::toImpl(v8::Handle<v8::Object>::Cast(value.v8Value()));
  }
  
  ScriptValue InjectedScriptHost::nodeAsScriptValue(ScriptState* scriptState, Node* node)
  {
      ScriptState::Scope scope(scriptState);
      v8::Isolate* isolate = scriptState->isolate();
      ExceptionState exceptionState(ExceptionState::ExecutionContext, "nodeAsScriptValue", "InjectedScriptHost", scriptState->context()->Global(), isolate);
      if (!BindingSecurity::shouldAllowAccessToNode(isolate, node, exceptionState))
          return ScriptValue(scriptState, v8::Null(isolate));
      return ScriptValue(scriptState, toV8(node, scriptState->context()->Global(), isolate));
  }
  
  void V8InjectedScriptHost::inspectedObjectMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      if (info.Length() < 1)
          return;
  
      if (!info[0]->IsInt32()) {
          V8ThrowException::throwTypeError(info.GetIsolate(), "argument has to be an integer");
          return;
      }
  
      InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
      InjectedScriptHost::InspectableObject* object = host->inspectedObject(info[0]->ToInt32(info.GetIsolate())->Value());
      v8SetReturnValue(info, object->get(ScriptState::current(info.GetIsolate())).v8Value());
  }
  
  static v8::Handle<v8::String> functionDisplayName(v8::Handle<v8::Function> function)
  {
      v8::Handle<v8::Value> value = function->GetDisplayName();
      if (value->IsString() && v8::Handle<v8::String>::Cast(value)->Length())
          return v8::Handle<v8::String>::Cast(value);
  
      value = function->GetName();
      if (value->IsString() && v8::Handle<v8::String>::Cast(value)->Length())
          return v8::Handle<v8::String>::Cast(value);
  
      value = function->GetInferredName();
      if (value->IsString() && v8::Handle<v8::String>::Cast(value)->Length())
          return v8::Handle<v8::String>::Cast(value);
  
      return v8::Handle<v8::String>();
  }
  
  void V8InjectedScriptHost::internalConstructorNameMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      if (info.Length() < 1 || !info[0]->IsObject())
          return;
  
      v8::Local<v8::Object> object = info[0]->ToObject(info.GetIsolate());
      v8::Local<v8::String> result = object->GetConstructorName();
  
      if (!result.IsEmpty() && toCoreStringWithUndefinedOrNullCheck(result) == "Object") {
          v8::Local<v8::String> constructorSymbol = v8AtomicString(info.GetIsolate(), "constructor");
          if (object->HasRealNamedProperty(constructorSymbol) && !object->HasRealNamedCallbackProperty(constructorSymbol)) {
              v8::TryCatch tryCatch;
              v8::Local<v8::Value> constructor = object->GetRealNamedProperty(constructorSymbol);
              if (!constructor.IsEmpty() && constructor->IsFunction()) {
                  v8::Local<v8::String> constructorName = functionDisplayName(v8::Handle<v8::Function>::Cast(constructor));
                  if (!constructorName.IsEmpty() && !tryCatch.HasCaught())
                      result = constructorName;
              }
          }
          if (toCoreStringWithUndefinedOrNullCheck(result) == "Object" && object->IsFunction())
              result = v8AtomicString(info.GetIsolate(), "Function");
      }
  
      v8SetReturnValue(info, result);
  }
  
  void V8InjectedScriptHost::isHTMLAllCollectionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      if (info.Length() < 1)
          return;
  
      if (!info[0]->IsObject()) {
          v8SetReturnValue(info, false);
          return;
      }
  
      v8SetReturnValue(info, V8HTMLAllCollection::hasInstance(info[0], info.GetIsolate()));
  }
  
  void V8InjectedScriptHost::isTypedArrayMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      if (info.Length() < 1)
          return;
      v8SetReturnValue(info, info[0]->IsTypedArray());
  }
  
  void V8InjectedScriptHost::subtypeMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      if (info.Length() < 1)
          return;
      v8::Isolate* isolate = info.GetIsolate();
  
      v8::Handle<v8::Value> value = info[0];
      if (value->IsArray() || value->IsTypedArray() || value->IsArgumentsObject()) {
          v8SetReturnValue(info, v8AtomicString(isolate, "array"));
          return;
      }
      if (value->IsDate()) {
          v8SetReturnValue(info, v8AtomicString(isolate, "date"));
          return;
      }
      if (value->IsRegExp()) {
          v8SetReturnValue(info, v8AtomicString(isolate, "regexp"));
          return;
      }
      if (value->IsMap() || value->IsWeakMap()) {
          v8SetReturnValue(info, v8AtomicString(isolate, "map"));
          return;
      }
      if (value->IsSet() || value->IsWeakSet()) {
          v8SetReturnValue(info, v8AtomicString(isolate, "set"));
          return;
      }
      if (value->IsMapIterator() || value->IsSetIterator()) {
          v8SetReturnValue(info, v8AtomicString(isolate, "iterator"));
          return;
      }
      if (value->IsGeneratorObject()) {
          v8SetReturnValue(info, v8AtomicString(isolate, "generator"));
          return;
      }
      if (V8Node::hasInstance(value, isolate)) {
          v8SetReturnValue(info, v8AtomicString(isolate, "node"));
          return;
      }
      if (V8NodeList::hasInstance(value, isolate)
          || V8DOMTokenList::hasInstance(value, isolate)
          || V8HTMLCollection::hasInstance(value, isolate)
          || V8HTMLAllCollection::hasInstance(value, isolate)) {
          v8SetReturnValue(info, v8AtomicString(isolate, "array"));
          return;
      }
      if (value->IsNativeError() || V8DOMException::hasInstance(value, isolate)) {
          v8SetReturnValue(info, v8AtomicString(isolate, "error"));
          return;
      }
  }
  
  void V8InjectedScriptHost::functionDetailsMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      if (info.Length() < 1 || !info[0]->IsFunction())
          return;
  
      v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(info[0]);
      int lineNumber = function->GetScriptLineNumber();
      int columnNumber = function->GetScriptColumnNumber();
  
      v8::Isolate* isolate = info.GetIsolate();
      v8::Local<v8::Object> location = v8::Object::New(isolate);
      location->Set(v8AtomicString(isolate, "lineNumber"), v8::Integer::New(isolate, lineNumber));
      location->Set(v8AtomicString(isolate, "columnNumber"), v8::Integer::New(isolate, columnNumber));
      location->Set(v8AtomicString(isolate, "scriptId"), v8::Integer::New(isolate, function->ScriptId())->ToString(isolate));
  
      v8::Local<v8::Object> result = v8::Object::New(isolate);
      result->Set(v8AtomicString(isolate, "location"), location);
  
      v8::Handle<v8::String> name = functionDisplayName(function);
      result->Set(v8AtomicString(isolate, "functionName"), name.IsEmpty() ? v8AtomicString(isolate, "") : name);
  
      result->Set(v8AtomicString(isolate, "isGenerator"), v8::Boolean::New(isolate, function->IsGeneratorFunction()));
  
      InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
      ScriptDebugServer& debugServer = host->scriptDebugServer();
      v8::Handle<v8::Value> scopes = debugServer.functionScopes(function);
      if (!scopes.IsEmpty() && scopes->IsArray())
          result->Set(v8AtomicString(isolate, "rawScopes"), scopes);
  
      v8SetReturnValue(info, result);
  }
  
  void V8InjectedScriptHost::generatorObjectDetailsMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      if (info.Length() < 1 || !info[0]->IsObject())
          return;
  
      v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(info[0]);
  
      InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
      ScriptDebugServer& debugServer = host->scriptDebugServer();
      v8SetReturnValue(info, debugServer.generatorObjectDetails(object));
  }
  
  void V8InjectedScriptHost::collectionEntriesMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      if (info.Length() < 1 || !info[0]->IsObject())
          return;
  
      v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(info[0]);
  
      InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
      ScriptDebugServer& debugServer = host->scriptDebugServer();
      v8SetReturnValue(info, debugServer.collectionEntries(object));
  }
  
  void V8InjectedScriptHost::getInternalPropertiesMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      if (info.Length() < 1 || !info[0]->IsObject())
          return;
  
      v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(info[0]);
  
      InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
      ScriptDebugServer& debugServer = host->scriptDebugServer();
      v8SetReturnValue(info, debugServer.getInternalProperties(object));
  }
  
  static v8::Handle<v8::Array> getJSListenerFunctions(ExecutionContext* executionContext, const EventListenerInfo& listenerInfo, v8::Isolate* isolate)
  {
      v8::Local<v8::Array> result = v8::Array::New(isolate);
      size_t handlersCount = listenerInfo.eventListenerVector.size();
      for (size_t i = 0, outputIndex = 0; i < handlersCount; ++i) {
          RefPtr<EventListener> listener = listenerInfo.eventListenerVector[i].listener;
          if (listener->type() != EventListener::JSEventListenerType) {
              ASSERT_NOT_REACHED();
              continue;
          }
          V8AbstractEventListener* v8Listener = static_cast<V8AbstractEventListener*>(listener.get());
          v8::Local<v8::Context> context = toV8Context(executionContext, v8Listener->world());
          // Hide listeners from other contexts.
          if (context != isolate->GetCurrentContext())
              continue;
          v8::Local<v8::Object> function;
          {
              // getListenerObject() may cause JS in the event attribute to get compiled, potentially unsuccessfully.
              v8::TryCatch block;
              function = v8Listener->getListenerObject(executionContext);
              if (block.HasCaught())
                  continue;
          }
          ASSERT(!function.IsEmpty());
          v8::Local<v8::Object> listenerEntry = v8::Object::New(isolate);
          listenerEntry->Set(v8AtomicString(isolate, "listener"), function);
          listenerEntry->Set(v8AtomicString(isolate, "useCapture"), v8::Boolean::New(isolate, listenerInfo.eventListenerVector[i].useCapture));
          result->Set(v8::Number::New(isolate, outputIndex++), listenerEntry);
      }
      return result;
  }
  
  void V8InjectedScriptHost::getEventListenersMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      if (info.Length() < 1)
          return;
  
  
      v8::Local<v8::Value> value = info[0];
      EventTarget* target = V8EventTarget::toImplWithTypeCheck(info.GetIsolate(), value);
  
      // We need to handle a LocalDOMWindow specially, because a LocalDOMWindow wrapper exists on a prototype chain.
      if (!target)
          target = toDOMWindow(info.GetIsolate(), value);
  
      if (!target || !target->executionContext())
          return;
  
      InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
      Vector<EventListenerInfo> listenersArray;
      host->getEventListenersImpl(target, listenersArray);
  
      v8::Local<v8::Object> result = v8::Object::New(info.GetIsolate());
      for (size_t i = 0; i < listenersArray.size(); ++i) {
          v8::Handle<v8::Array> listeners = getJSListenerFunctions(target->executionContext(), listenersArray[i], info.GetIsolate());
          if (!listeners->Length())
              continue;
          AtomicString eventType = listenersArray[i].eventType;
          result->Set(v8String(info.GetIsolate(), eventType), listeners);
      }
  
      v8SetReturnValue(info, result);
  }
  
  void V8InjectedScriptHost::inspectMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      if (info.Length() < 2)
          return;
  
      InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
      ScriptState* scriptState = ScriptState::current(info.GetIsolate());
      ScriptValue object(scriptState, info[0]);
      ScriptValue hints(scriptState, info[1]);
      host->inspectImpl(object.toJSONValue(scriptState), hints.toJSONValue(scriptState));
  }
  
  void V8InjectedScriptHost::evalMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      v8::Isolate* isolate = info.GetIsolate();
      if (info.Length() < 1) {
          isolate->ThrowException(v8::Exception::Error(v8::String::NewFromUtf8(isolate, "One argument expected.")));
          return;
      }
  
      v8::Handle<v8::String> expression = info[0]->ToString(isolate);
      if (expression.IsEmpty()) {
          isolate->ThrowException(v8::Exception::Error(v8::String::NewFromUtf8(isolate, "The argument must be a string.")));
          return;
      }
  
      ASSERT(isolate->InContext());
      v8::TryCatch tryCatch;
      v8::Handle<v8::Value> result = V8ScriptRunner::compileAndRunInternalScript(expression, info.GetIsolate());
      if (tryCatch.HasCaught()) {
          v8SetReturnValue(info, tryCatch.ReThrow());
          return;
      }
      v8SetReturnValue(info, result);
  }
  
  void V8InjectedScriptHost::evaluateWithExceptionDetailsMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      v8::Isolate* isolate = info.GetIsolate();
      if (info.Length() < 1) {
          isolate->ThrowException(v8::Exception::Error(v8::String::NewFromUtf8(isolate, "One argument expected.")));
          return;
      }
  
      v8::Handle<v8::String> expression = info[0]->ToString(isolate);
      if (expression.IsEmpty()) {
          isolate->ThrowException(v8::Exception::Error(v8::String::NewFromUtf8(isolate, "The argument must be a string.")));
          return;
      }
  
      ASSERT(isolate->InContext());
      v8::TryCatch tryCatch;
      v8::Handle<v8::Value> result = V8ScriptRunner::compileAndRunInternalScript(expression, info.GetIsolate());
  
      v8::Local<v8::Object> wrappedResult = v8::Object::New(isolate);
      if (tryCatch.HasCaught()) {
          wrappedResult->Set(v8::String::NewFromUtf8(isolate, "result"), tryCatch.Exception());
          wrappedResult->Set(v8::String::NewFromUtf8(isolate, "exceptionDetails"), JavaScriptCallFrame::createExceptionDetails(isolate, tryCatch.Message()));
      } else {
          wrappedResult->Set(v8::String::NewFromUtf8(isolate, "result"), result);
          wrappedResult->Set(v8::String::NewFromUtf8(isolate, "exceptionDetails"), v8::Undefined(isolate));
      }
      v8SetReturnValue(info, wrappedResult);
  }
  
  void V8InjectedScriptHost::setFunctionVariableValueMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      if (info.Length() < 4 || !info[0]->IsFunction() || !info[1]->IsInt32() || !info[2]->IsString())
          return;
  
      v8::Handle<v8::Value> functionValue = info[0];
      int scopeIndex = info[1]->Int32Value();
      String variableName = toCoreStringWithUndefinedOrNullCheck(info[2]);
      v8::Handle<v8::Value> newValue = info[3];
  
      InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
      ScriptDebugServer& debugServer = host->scriptDebugServer();
      v8SetReturnValue(info, debugServer.setFunctionVariableValue(functionValue, scopeIndex, variableName, newValue));
  }
  
  static bool getFunctionLocation(const v8::FunctionCallbackInfo<v8::Value>& info, String* scriptId, int* lineNumber, int* columnNumber)
  {
      if (info.Length() < 1 || !info[0]->IsFunction())
          return false;
      v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(info[0]);
      *lineNumber = function->GetScriptLineNumber();
      *columnNumber = function->GetScriptColumnNumber();
      if (*lineNumber == v8::Function::kLineOffsetNotFound || *columnNumber == v8::Function::kLineOffsetNotFound)
          return false;
      *scriptId = String::number(function->ScriptId());
      return true;
  }
  
  void V8InjectedScriptHost::debugFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      String scriptId;
      int lineNumber;
      int columnNumber;
      if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
          return;
  
      InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
      host->debugFunction(scriptId, lineNumber, columnNumber);
  }
  
  void V8InjectedScriptHost::undebugFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      String scriptId;
      int lineNumber;
      int columnNumber;
      if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
          return;
  
      InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
      host->undebugFunction(scriptId, lineNumber, columnNumber);
  }
  
  void V8InjectedScriptHost::monitorFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      String scriptId;
      int lineNumber;
      int columnNumber;
      if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
          return;
  
      v8::Handle<v8::Value> name;
      if (info.Length() > 0 && info[0]->IsFunction()) {
          v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(info[0]);
          name = function->GetName();
          if (!name->IsString() || !v8::Handle<v8::String>::Cast(name)->Length())
              name = function->GetInferredName();
      }
  
      InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
      host->monitorFunction(scriptId, lineNumber, columnNumber, toCoreStringWithUndefinedOrNullCheck(name));
  }
  
  void V8InjectedScriptHost::unmonitorFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      String scriptId;
      int lineNumber;
      int columnNumber;
      if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
          return;
  
      InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
      host->unmonitorFunction(scriptId, lineNumber, columnNumber);
  }
  
  void V8InjectedScriptHost::callFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      if (info.Length() < 2 || info.Length() > 3 || !info[0]->IsFunction()) {
          ASSERT_NOT_REACHED();
          return;
      }
  
      v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(info[0]);
      v8::Handle<v8::Value> receiver = info[1];
  
      if (info.Length() < 3 || info[2]->IsUndefined()) {
          v8::Local<v8::Value> result = function->Call(receiver, 0, 0);
          v8SetReturnValue(info, result);
          return;
      }
  
      if (!info[2]->IsArray()) {
          ASSERT_NOT_REACHED();
          return;
      }
  
      v8::Handle<v8::Array> arguments = v8::Handle<v8::Array>::Cast(info[2]);
      size_t argc = arguments->Length();
      OwnPtr<v8::Handle<v8::Value>[]> argv = adoptArrayPtr(new v8::Handle<v8::Value>[argc]);
      for (size_t i = 0; i < argc; ++i)
          argv[i] = arguments->Get(i);
  
      v8::Local<v8::Value> result = function->Call(receiver, argc, argv.get());
      v8SetReturnValue(info, result);
  }
  
  void V8InjectedScriptHost::suppressWarningsAndCallFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
      ScriptDebugServer& debugServer = host->scriptDebugServer();
      debugServer.muteWarningsAndDeprecations();
  
      callFunctionMethodCustom(info);
  
      debugServer.unmuteWarningsAndDeprecations();
  }
  
  void V8InjectedScriptHost::setNonEnumPropertyMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
  {
      if (info.Length() < 3 || !info[0]->IsObject() || !info[1]->IsString())
          return;
  
      v8::Local<v8::Object> object = info[0]->ToObject(info.GetIsolate());
      object->ForceSet(info[1], info[2], v8::DontEnum);
  }
  
  } // namespace blink
  