2 * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include "JSCallbackFunction.h"
31 #include "CodeBlock.h"
32 #include "ExceptionHelpers.h"
33 #include "JSFunction.h"
34 #include "FunctionPrototype.h"
35 #include <runtime/JSGlobalObject.h>
36 #include <runtime/JSLock.h>
37 #include <wtf/Vector.h>
41 ASSERT_CLASS_FITS_IN_CELL(JSCallbackFunction);
43 const ClassInfo JSCallbackFunction::s_info = { "CallbackFunction", &InternalFunction::s_info, 0, 0 };
45 JSCallbackFunction::JSCallbackFunction(JSGlobalObject* globalObject, JSObjectCallAsFunctionCallback callback)
46 : InternalFunction(globalObject, globalObject->callbackFunctionStructure())
47 , m_callback(callback)
51 void JSCallbackFunction::finishCreation(JSGlobalData& globalData, const Identifier& name)
53 Base::finishCreation(globalData, name);
54 ASSERT(inherits(&s_info));
57 EncodedJSValue JSCallbackFunction::call(ExecState* exec)
59 JSContextRef execRef = toRef(exec);
60 JSObjectRef functionRef = toRef(exec->callee());
61 JSObjectRef thisObjRef = toRef(exec->hostThisValue().toThisObject(exec));
63 int argumentCount = static_cast<int>(exec->argumentCount());
64 Vector<JSValueRef, 16> arguments(argumentCount);
65 for (int i = 0; i < argumentCount; i++)
66 arguments[i] = toRef(exec, exec->argument(i));
68 JSValueRef exception = 0;
71 APICallbackShim callbackShim(exec);
72 result = static_cast<JSCallbackFunction*>(toJS(functionRef))->m_callback(execRef, functionRef, thisObjRef, argumentCount, arguments.data(), &exception);
75 throwError(exec, toJS(exec, exception));
77 return JSValue::encode(toJS(exec, result));
80 CallType JSCallbackFunction::getCallData(CallData& callData)
82 callData.native.function = call;