InjectedScript InjectedScriptManager::injectedScriptFor(ExecState* inspectedExecState)
{
    auto it = m_scriptStateToId.find(inspectedExecState);
    if (it != m_scriptStateToId.end()) {
        auto it1 = m_idToInjectedScript.find(it->value);
        if (it1 != m_idToInjectedScript.end())
            return it1->value;
    }

    if (!m_environment.canAccessInspectedScriptState(inspectedExecState))
        return InjectedScript();

    int id = injectedScriptIdFor(inspectedExecState);
    Deprecated::ScriptObject injectedScriptObject = createInjectedScript(injectedScriptSource(), inspectedExecState, id);
    if (injectedScriptObject.scriptState() != inspectedExecState) {
        WTFLogAlways("Failed to parse/execute InjectedScriptSource.js!");
        WTFLogAlways("%s\n", injectedScriptSource().ascii().data());
        RELEASE_ASSERT_NOT_REACHED();
    }

    InjectedScript result(injectedScriptObject, &m_environment);
    m_idToInjectedScript.set(id, result);
    didCreateInjectedScript(result);
    return result;
}
JSValue JSHTMLCanvasElement::getContext(ExecState* exec)
{
    HTMLCanvasElement& canvas = impl();
    const String& contextId = exec->argument(0).toString(exec)->value(exec);
    
    RefPtr<CanvasContextAttributes> attrs;
#if ENABLE(WEBGL)
    if (HTMLCanvasElement::is3dType(contextId)) {
        get3DContextAttributes(exec, attrs);
        if (exec->hadException())
            return jsUndefined();
    }
#endif
    
    CanvasRenderingContext* context = canvas.getContext(contextId, attrs.get());
    if (!context)
        return jsNull();
    JSValue jsValue = toJS(exec, globalObject(), WTF::getPtr(context));
    if (InspectorInstrumentation::canvasAgentEnabled(&canvas.document())) {
        Deprecated::ScriptObject contextObject(exec, jsValue.getObject());
        Deprecated::ScriptObject wrapped;
        if (context->is2d())
            wrapped = InspectorInstrumentation::wrapCanvas2DRenderingContextForInstrumentation(&canvas.document(), contextObject);
#if ENABLE(WEBGL)
        else if (context->is3d())
            wrapped = InspectorInstrumentation::wrapWebGLRenderingContextForInstrumentation(&canvas.document(), contextObject);
#endif
        if (!wrapped.hasNoValue())
            return wrapped.jsValue();
    }
    return jsValue;
}
void ScriptCallArgumentHandler::appendArgument(const Deprecated::ScriptObject& argument)
{
    if (argument.scriptState() != m_exec) {
        ASSERT_NOT_REACHED();
        return;
    }
    m_arguments.append(argument.jsObject());
}
ScriptFunctionCall::ScriptFunctionCall(const Deprecated::ScriptObject& thisObject, const String& name, ScriptFunctionCallHandler callHandler)
    : ScriptCallArgumentHandler(thisObject.scriptState())
    , m_callHandler(callHandler)
    , m_thisObject(thisObject)
    , m_name(name)
{
}
Deprecated::ScriptObject InjectedScriptCanvasModule::callWrapContextFunction(const String& functionName, const Deprecated::ScriptObject& context)
{
    Deprecated::ScriptFunctionCall function(injectedScriptObject(), functionName, WebCore::functionCallHandlerFromAnyThread);
    function.appendArgument(context);
    bool hadException = false;
    Deprecated::ScriptValue resultValue = callFunctionWithEvalEnabled(function, hadException);
    if (hadException || resultValue.hasNoValue() || !resultValue.isObject()) {
        ASSERT_NOT_REACHED();
        return Deprecated::ScriptObject();
    }
    return Deprecated::ScriptObject(context.scriptState(), resultValue);
}
void InspectorHeapProfilerAgent::getObjectByHeapObjectId(ErrorString* error, const String& heapSnapshotObjectId, const String* objectGroup, RefPtr<Inspector::TypeBuilder::Runtime::RemoteObject>& result)
{
    bool ok;
    unsigned id = heapSnapshotObjectId.toUInt(&ok);
    if (!ok) {
        *error = "Invalid heap snapshot object id";
        return;
    }
    Deprecated::ScriptObject heapObject = ScriptProfiler::objectByHeapObjectId(id);
    if (heapObject.hasNoValue()) {
        *error = "Object is not available";
        return;
    }
    InjectedScript injectedScript = m_injectedScriptManager->injectedScriptFor(heapObject.scriptState());
    if (injectedScript.hasNoValue()) {
        *error = "Object is not available. Inspected context is gone";
        return;
    }
    result = injectedScript.wrapObject(heapObject, objectGroup ? *objectGroup : "");
    if (!result)
        *error = "Failed to wrap object";
}