Home | History | Annotate | Download | only in custom 
      1 /*
      2  * Copyright (C) 2007-2011 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "bindings/core/v8/V8InjectedScriptHost.h"
     33 
     34 #include "bindings/core/v8/BindingSecurity.h"
     35 #include "bindings/core/v8/ExceptionState.h"
     36 #include "bindings/core/v8/ScriptDebugServer.h"
     37 #include "bindings/core/v8/ScriptValue.h"
     38 #include "bindings/core/v8/V8AbstractEventListener.h"
     39 #include "bindings/core/v8/V8Binding.h"
     40 #include "bindings/core/v8/V8DOMTokenList.h"
     41 #include "bindings/core/v8/V8EventTarget.h"
     42 #include "bindings/core/v8/V8HTMLAllCollection.h"
     43 #include "bindings/core/v8/V8HTMLCollection.h"
     44 #include "bindings/core/v8/V8Node.h"
     45 #include "bindings/core/v8/V8NodeList.h"
     46 #include "bindings/core/v8/V8ScriptRunner.h"
     47 #include "bindings/core/v8/V8Storage.h"
     48 #include "bindings/core/v8/custom/V8Float32ArrayCustom.h"
     49 #include "bindings/core/v8/custom/V8Float64ArrayCustom.h"
     50 #include "bindings/core/v8/custom/V8Int16ArrayCustom.h"
     51 #include "bindings/core/v8/custom/V8Int32ArrayCustom.h"
     52 #include "bindings/core/v8/custom/V8Int8ArrayCustom.h"
     53 #include "bindings/core/v8/custom/V8Uint16ArrayCustom.h"
     54 #include "bindings/core/v8/custom/V8Uint32ArrayCustom.h"
     55 #include "bindings/core/v8/custom/V8Uint8ArrayCustom.h"
     56 #include "bindings/core/v8/custom/V8Uint8ClampedArrayCustom.h"
     57 #include "core/events/EventTarget.h"
     58 #include "core/frame/LocalDOMWindow.h"
     59 #include "core/inspector/InjectedScript.h"
     60 #include "core/inspector/InjectedScriptHost.h"
     61 #include "core/inspector/InspectorDOMAgent.h"
     62 #include "core/inspector/JavaScriptCallFrame.h"
     63 #include "platform/JSONValues.h"
     64 
     65 namespace blink {
     66 
     67 Node* InjectedScriptHost::scriptValueAsNode(ScriptState* scriptState, ScriptValue value)
     68 {
     69     ScriptState::Scope scope(scriptState);
     70     if (!value.isObject() || value.isNull())
     71         return 0;
     72     return V8Node::toImpl(v8::Handle<v8::Object>::Cast(value.v8Value()));
     73 }
     74 
     75 ScriptValue InjectedScriptHost::nodeAsScriptValue(ScriptState* scriptState, Node* node)
     76 {
     77     ScriptState::Scope scope(scriptState);
     78     v8::Isolate* isolate = scriptState->isolate();
     79     ExceptionState exceptionState(ExceptionState::ExecutionContext, "nodeAsScriptValue", "InjectedScriptHost", scriptState->context()->Global(), isolate);
     80     if (!BindingSecurity::shouldAllowAccessToNode(isolate, node, exceptionState))
     81         return ScriptValue(scriptState, v8::Null(isolate));
     82     return ScriptValue(scriptState, toV8(node, scriptState->context()->Global(), isolate));
     83 }
     84 
     85 void V8InjectedScriptHost::inspectedObjectMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
     86 {
     87     if (info.Length() < 1)
     88         return;
     89 
     90     if (!info[0]->IsInt32()) {
     91         V8ThrowException::throwTypeError("argument has to be an integer", info.GetIsolate());
     92         return;
     93     }
     94 
     95     InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
     96     InjectedScriptHost::InspectableObject* object = host->inspectedObject(info[0]->ToInt32()->Value());
     97     v8SetReturnValue(info, object->get(ScriptState::current(info.GetIsolate())).v8Value());
     98 }
     99 
    100 static v8::Handle<v8::String> functionDisplayName(v8::Handle<v8::Function> function)
    101 {
    102     v8::Handle<v8::Value> value = function->GetDisplayName();
    103     if (value->IsString() && v8::Handle<v8::String>::Cast(value)->Length())
    104         return v8::Handle<v8::String>::Cast(value);
    105 
    106     value = function->GetName();
    107     if (value->IsString() && v8::Handle<v8::String>::Cast(value)->Length())
    108         return v8::Handle<v8::String>::Cast(value);
    109 
    110     value = function->GetInferredName();
    111     if (value->IsString() && v8::Handle<v8::String>::Cast(value)->Length())
    112         return v8::Handle<v8::String>::Cast(value);
    113 
    114     return v8::Handle<v8::String>();
    115 }
    116 
    117 void V8InjectedScriptHost::internalConstructorNameMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    118 {
    119     if (info.Length() < 1 || !info[0]->IsObject())
    120         return;
    121 
    122     v8::Local<v8::Object> object = info[0]->ToObject();
    123     v8::Local<v8::String> result = object->GetConstructorName();
    124 
    125     if (!result.IsEmpty() && toCoreStringWithUndefinedOrNullCheck(result) == "Object") {
    126         v8::Local<v8::String> constructorSymbol = v8AtomicString(info.GetIsolate(), "constructor");
    127         if (object->HasRealNamedProperty(constructorSymbol) && !object->HasRealNamedCallbackProperty(constructorSymbol)) {
    128             v8::TryCatch tryCatch;
    129             v8::Local<v8::Value> constructor = object->GetRealNamedProperty(constructorSymbol);
    130             if (!constructor.IsEmpty() && constructor->IsFunction()) {
    131                 v8::Local<v8::String> constructorName = functionDisplayName(v8::Handle<v8::Function>::Cast(constructor));
    132                 if (!constructorName.IsEmpty() && !tryCatch.HasCaught())
    133                     result = constructorName;
    134             }
    135         }
    136     }
    137 
    138     v8SetReturnValue(info, result);
    139 }
    140 
    141 void V8InjectedScriptHost::isHTMLAllCollectionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    142 {
    143     if (info.Length() < 1)
    144         return;
    145 
    146     if (!info[0]->IsObject()) {
    147         v8SetReturnValue(info, false);
    148         return;
    149     }
    150 
    151     v8SetReturnValue(info, V8HTMLAllCollection::hasInstance(info[0], info.GetIsolate()));
    152 }
    153 
    154 void V8InjectedScriptHost::subtypeMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    155 {
    156     if (info.Length() < 1)
    157         return;
    158     v8::Isolate* isolate = info.GetIsolate();
    159 
    160     v8::Handle<v8::Value> value = info[0];
    161     if (value->IsArray() || value->IsTypedArray() || value->IsArgumentsObject()) {
    162         v8SetReturnValue(info, v8AtomicString(isolate, "array"));
    163         return;
    164     }
    165     if (value->IsDate()) {
    166         v8SetReturnValue(info, v8AtomicString(isolate, "date"));
    167         return;
    168     }
    169     if (value->IsRegExp()) {
    170         v8SetReturnValue(info, v8AtomicString(isolate, "regexp"));
    171         return;
    172     }
    173     if (value->IsMap() || value->IsWeakMap()) {
    174         v8SetReturnValue(info, v8AtomicString(isolate, "map"));
    175         return;
    176     }
    177     if (value->IsSet() || value->IsWeakSet()) {
    178         v8SetReturnValue(info, v8AtomicString(isolate, "set"));
    179         return;
    180     }
    181     if (V8Node::hasInstance(value, isolate)) {
    182         v8SetReturnValue(info, v8AtomicString(isolate, "node"));
    183         return;
    184     }
    185     if (V8NodeList::hasInstance(value, isolate)
    186         || V8DOMTokenList::hasInstance(value, isolate)
    187         || V8HTMLCollection::hasInstance(value, isolate)
    188         || V8HTMLAllCollection::hasInstance(value, isolate)) {
    189         v8SetReturnValue(info, v8AtomicString(isolate, "array"));
    190         return;
    191     }
    192 }
    193 
    194 void V8InjectedScriptHost::functionDetailsMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    195 {
    196     if (info.Length() < 1 || !info[0]->IsFunction())
    197         return;
    198 
    199     v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(info[0]);
    200     int lineNumber = function->GetScriptLineNumber();
    201     int columnNumber = function->GetScriptColumnNumber();
    202 
    203     v8::Isolate* isolate = info.GetIsolate();
    204     v8::Local<v8::Object> location = v8::Object::New(isolate);
    205     location->Set(v8AtomicString(isolate, "lineNumber"), v8::Integer::New(isolate, lineNumber));
    206     location->Set(v8AtomicString(isolate, "columnNumber"), v8::Integer::New(isolate, columnNumber));
    207     location->Set(v8AtomicString(isolate, "scriptId"), v8::Integer::New(isolate, function->ScriptId())->ToString());
    208 
    209     v8::Local<v8::Object> result = v8::Object::New(isolate);
    210     result->Set(v8AtomicString(isolate, "location"), location);
    211 
    212     v8::Handle<v8::String> name = functionDisplayName(function);
    213     result->Set(v8AtomicString(isolate, "functionName"), name.IsEmpty() ? v8AtomicString(isolate, "") : name);
    214 
    215     InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
    216     ScriptDebugServer& debugServer = host->scriptDebugServer();
    217     v8::Handle<v8::Value> scopes = debugServer.functionScopes(function);
    218     if (!scopes.IsEmpty() && scopes->IsArray())
    219         result->Set(v8AtomicString(isolate, "rawScopes"), scopes);
    220 
    221     v8SetReturnValue(info, result);
    222 }
    223 
    224 void V8InjectedScriptHost::collectionEntriesMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    225 {
    226     if (info.Length() < 1 || !info[0]->IsObject())
    227         return;
    228 
    229     v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(info[0]);
    230 
    231     InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
    232     ScriptDebugServer& debugServer = host->scriptDebugServer();
    233     v8SetReturnValue(info, debugServer.collectionEntries(object));
    234 }
    235 
    236 void V8InjectedScriptHost::getInternalPropertiesMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    237 {
    238     if (info.Length() < 1 || !info[0]->IsObject())
    239         return;
    240 
    241     v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(info[0]);
    242 
    243     InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
    244     ScriptDebugServer& debugServer = host->scriptDebugServer();
    245     v8SetReturnValue(info, debugServer.getInternalProperties(object));
    246 }
    247 
    248 static v8::Handle<v8::Array> getJSListenerFunctions(ExecutionContext* executionContext, const EventListenerInfo& listenerInfo, v8::Isolate* isolate)
    249 {
    250     v8::Local<v8::Array> result = v8::Array::New(isolate);
    251     size_t handlersCount = listenerInfo.eventListenerVector.size();
    252     for (size_t i = 0, outputIndex = 0; i < handlersCount; ++i) {
    253         RefPtr<EventListener> listener = listenerInfo.eventListenerVector[i].listener;
    254         if (listener->type() != EventListener::JSEventListenerType) {
    255             ASSERT_NOT_REACHED();
    256             continue;
    257         }
    258         V8AbstractEventListener* v8Listener = static_cast<V8AbstractEventListener*>(listener.get());
    259         v8::Local<v8::Context> context = toV8Context(executionContext, v8Listener->world());
    260         // Hide listeners from other contexts.
    261         if (context != isolate->GetCurrentContext())
    262             continue;
    263         v8::Local<v8::Object> function;
    264         {
    265             // getListenerObject() may cause JS in the event attribute to get compiled, potentially unsuccessfully.
    266             v8::TryCatch block;
    267             function = v8Listener->getListenerObject(executionContext);
    268             if (block.HasCaught())
    269                 continue;
    270         }
    271         ASSERT(!function.IsEmpty());
    272         v8::Local<v8::Object> listenerEntry = v8::Object::New(isolate);
    273         listenerEntry->Set(v8AtomicString(isolate, "listener"), function);
    274         listenerEntry->Set(v8AtomicString(isolate, "useCapture"), v8::Boolean::New(isolate, listenerInfo.eventListenerVector[i].useCapture));
    275         result->Set(v8::Number::New(isolate, outputIndex++), listenerEntry);
    276     }
    277     return result;
    278 }
    279 
    280 void V8InjectedScriptHost::getEventListenersMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    281 {
    282     if (info.Length() < 1)
    283         return;
    284 
    285 
    286     v8::Local<v8::Value> value = info[0];
    287     EventTarget* target = V8EventTarget::toImplWithTypeCheck(info.GetIsolate(), value);
    288 
    289     // We need to handle a LocalDOMWindow specially, because a LocalDOMWindow wrapper exists on a prototype chain.
    290     if (!target)
    291         target = toDOMWindow(value, info.GetIsolate());
    292 
    293     if (!target || !target->executionContext())
    294         return;
    295 
    296     InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
    297     Vector<EventListenerInfo> listenersArray;
    298     host->getEventListenersImpl(target, listenersArray);
    299 
    300     v8::Local<v8::Object> result = v8::Object::New(info.GetIsolate());
    301     for (size_t i = 0; i < listenersArray.size(); ++i) {
    302         v8::Handle<v8::Array> listeners = getJSListenerFunctions(target->executionContext(), listenersArray[i], info.GetIsolate());
    303         if (!listeners->Length())
    304             continue;
    305         AtomicString eventType = listenersArray[i].eventType;
    306         result->Set(v8String(info.GetIsolate(), eventType), listeners);
    307     }
    308 
    309     v8SetReturnValue(info, result);
    310 }
    311 
    312 void V8InjectedScriptHost::inspectMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    313 {
    314     if (info.Length() < 2)
    315         return;
    316 
    317     InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
    318     ScriptState* scriptState = ScriptState::current(info.GetIsolate());
    319     ScriptValue object(scriptState, info[0]);
    320     ScriptValue hints(scriptState, info[1]);
    321     host->inspectImpl(object.toJSONValue(scriptState), hints.toJSONValue(scriptState));
    322 }
    323 
    324 void V8InjectedScriptHost::evalMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    325 {
    326     v8::Isolate* isolate = info.GetIsolate();
    327     if (info.Length() < 1) {
    328         isolate->ThrowException(v8::Exception::Error(v8::String::NewFromUtf8(isolate, "One argument expected.")));
    329         return;
    330     }
    331 
    332     v8::Handle<v8::String> expression = info[0]->ToString();
    333     if (expression.IsEmpty()) {
    334         isolate->ThrowException(v8::Exception::Error(v8::String::NewFromUtf8(isolate, "The argument must be a string.")));
    335         return;
    336     }
    337 
    338     ASSERT(isolate->InContext());
    339     v8::TryCatch tryCatch;
    340     v8::Handle<v8::Value> result = V8ScriptRunner::compileAndRunInternalScript(expression, info.GetIsolate());
    341     if (tryCatch.HasCaught()) {
    342         v8SetReturnValue(info, tryCatch.ReThrow());
    343         return;
    344     }
    345     v8SetReturnValue(info, result);
    346 }
    347 
    348 void V8InjectedScriptHost::evaluateWithExceptionDetailsMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    349 {
    350     v8::Isolate* isolate = info.GetIsolate();
    351     if (info.Length() < 1) {
    352         isolate->ThrowException(v8::Exception::Error(v8::String::NewFromUtf8(isolate, "One argument expected.")));
    353         return;
    354     }
    355 
    356     v8::Handle<v8::String> expression = info[0]->ToString();
    357     if (expression.IsEmpty()) {
    358         isolate->ThrowException(v8::Exception::Error(v8::String::NewFromUtf8(isolate, "The argument must be a string.")));
    359         return;
    360     }
    361 
    362     ASSERT(isolate->InContext());
    363     v8::TryCatch tryCatch;
    364     v8::Handle<v8::Value> result = V8ScriptRunner::compileAndRunInternalScript(expression, info.GetIsolate());
    365 
    366     v8::Local<v8::Object> wrappedResult = v8::Object::New(isolate);
    367     if (tryCatch.HasCaught()) {
    368         wrappedResult->Set(v8::String::NewFromUtf8(isolate, "result"), tryCatch.Exception());
    369         wrappedResult->Set(v8::String::NewFromUtf8(isolate, "exceptionDetails"), JavaScriptCallFrame::createExceptionDetails(tryCatch.Message(), isolate));
    370     } else {
    371         wrappedResult->Set(v8::String::NewFromUtf8(isolate, "result"), result);
    372         wrappedResult->Set(v8::String::NewFromUtf8(isolate, "exceptionDetails"), v8::Undefined(isolate));
    373     }
    374     v8SetReturnValue(info, wrappedResult);
    375 }
    376 
    377 void V8InjectedScriptHost::setFunctionVariableValueMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    378 {
    379     if (info.Length() < 4 || !info[0]->IsFunction() || !info[1]->IsInt32() || !info[2]->IsString())
    380         return;
    381 
    382     v8::Handle<v8::Value> functionValue = info[0];
    383     int scopeIndex = info[1]->Int32Value();
    384     String variableName = toCoreStringWithUndefinedOrNullCheck(info[2]);
    385     v8::Handle<v8::Value> newValue = info[3];
    386 
    387     InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
    388     ScriptDebugServer& debugServer = host->scriptDebugServer();
    389     v8SetReturnValue(info, debugServer.setFunctionVariableValue(functionValue, scopeIndex, variableName, newValue));
    390 }
    391 
    392 static bool getFunctionLocation(const v8::FunctionCallbackInfo<v8::Value>& info, String* scriptId, int* lineNumber, int* columnNumber)
    393 {
    394     if (info.Length() < 1 || !info[0]->IsFunction())
    395         return false;
    396     v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(info[0]);
    397     *lineNumber = function->GetScriptLineNumber();
    398     *columnNumber = function->GetScriptColumnNumber();
    399     if (*lineNumber == v8::Function::kLineOffsetNotFound || *columnNumber == v8::Function::kLineOffsetNotFound)
    400         return false;
    401     *scriptId = String::number(function->ScriptId());
    402     return true;
    403 }
    404 
    405 void V8InjectedScriptHost::debugFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    406 {
    407     String scriptId;
    408     int lineNumber;
    409     int columnNumber;
    410     if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
    411         return;
    412 
    413     InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
    414     host->debugFunction(scriptId, lineNumber, columnNumber);
    415 }
    416 
    417 void V8InjectedScriptHost::undebugFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    418 {
    419     String scriptId;
    420     int lineNumber;
    421     int columnNumber;
    422     if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
    423         return;
    424 
    425     InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
    426     host->undebugFunction(scriptId, lineNumber, columnNumber);
    427 }
    428 
    429 void V8InjectedScriptHost::monitorFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    430 {
    431     String scriptId;
    432     int lineNumber;
    433     int columnNumber;
    434     if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
    435         return;
    436 
    437     v8::Handle<v8::Value> name;
    438     if (info.Length() > 0 && info[0]->IsFunction()) {
    439         v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(info[0]);
    440         name = function->GetName();
    441         if (!name->IsString() || !v8::Handle<v8::String>::Cast(name)->Length())
    442             name = function->GetInferredName();
    443     }
    444 
    445     InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
    446     host->monitorFunction(scriptId, lineNumber, columnNumber, toCoreStringWithUndefinedOrNullCheck(name));
    447 }
    448 
    449 void V8InjectedScriptHost::unmonitorFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    450 {
    451     String scriptId;
    452     int lineNumber;
    453     int columnNumber;
    454     if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
    455         return;
    456 
    457     InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
    458     host->unmonitorFunction(scriptId, lineNumber, columnNumber);
    459 }
    460 
    461 void V8InjectedScriptHost::callFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    462 {
    463     if (info.Length() < 2 || info.Length() > 3 || !info[0]->IsFunction()) {
    464         ASSERT_NOT_REACHED();
    465         return;
    466     }
    467 
    468     v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(info[0]);
    469     v8::Handle<v8::Value> receiver = info[1];
    470 
    471     if (info.Length() < 3 || info[2]->IsUndefined()) {
    472         v8::Local<v8::Value> result = function->Call(receiver, 0, 0);
    473         v8SetReturnValue(info, result);
    474         return;
    475     }
    476 
    477     if (!info[2]->IsArray()) {
    478         ASSERT_NOT_REACHED();
    479         return;
    480     }
    481 
    482     v8::Handle<v8::Array> arguments = v8::Handle<v8::Array>::Cast(info[2]);
    483     size_t argc = arguments->Length();
    484     OwnPtr<v8::Handle<v8::Value>[]> argv = adoptArrayPtr(new v8::Handle<v8::Value>[argc]);
    485     for (size_t i = 0; i < argc; ++i)
    486         argv[i] = arguments->Get(i);
    487 
    488     v8::Local<v8::Value> result = function->Call(receiver, argc, argv.get());
    489     v8SetReturnValue(info, result);
    490 }
    491 
    492 void V8InjectedScriptHost::suppressWarningsAndCallFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    493 {
    494     InjectedScriptHost* host = V8InjectedScriptHost::toImpl(info.Holder());
    495     ScriptDebugServer& debugServer = host->scriptDebugServer();
    496     debugServer.muteWarningsAndDeprecations();
    497 
    498     callFunctionMethodCustom(info);
    499 
    500     debugServer.unmuteWarningsAndDeprecations();
    501 }
    502 
    503 void V8InjectedScriptHost::setNonEnumPropertyMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
    504 {
    505     if (info.Length() < 3 || !info[0]->IsObject() || !info[1]->IsString())
    506         return;
    507 
    508     v8::Local<v8::Object> object = info[0]->ToObject();
    509     object->ForceSet(info[1], info[2], v8::DontEnum);
    510 }
    511 
    512 } // namespace blink
    513