1 | /* |
2 | * Copyright (C) 2006, 2008 Apple 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 |
6 | * are met: |
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. |
12 | * |
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. |
24 | */ |
25 | |
26 | #include "config.h" |
27 | #include <wtf/Platform.h> |
28 | #include "JSCallbackFunction.h" |
29 | |
30 | #include "APIShims.h" |
31 | #include "APICast.h" |
32 | #include "CodeBlock.h" |
33 | #include "JSFunction.h" |
34 | #include "FunctionPrototype.h" |
35 | #include <runtime/JSGlobalObject.h> |
36 | #include <runtime/JSLock.h> |
37 | #include <wtf/Vector.h> |
38 | |
39 | namespace JSC { |
40 | |
41 | ASSERT_CLASS_FITS_IN_CELL(JSCallbackFunction); |
42 | |
43 | const ClassInfo JSCallbackFunction::info = { .className: "CallbackFunction" , .parentClass: &InternalFunction::info, .staticPropHashTable: 0, .classPropHashTableGetterFunction: 0 }; |
44 | |
45 | JSCallbackFunction::JSCallbackFunction(ExecState* exec, JSObjectCallAsFunctionCallback callback, const Identifier& name) |
46 | : InternalFunction(&exec->globalData(), exec->lexicalGlobalObject()->callbackFunctionStructure(), name) |
47 | , m_callback(callback) |
48 | { |
49 | } |
50 | |
51 | JSValue JSCallbackFunction::call(ExecState* exec, JSObject* functionObject, JSValue thisValue, const ArgList& args) |
52 | { |
53 | JSContextRef execRef = toRef(e: exec); |
54 | JSObjectRef functionRef = toRef(o: functionObject); |
55 | JSObjectRef thisObjRef = toRef(o: thisValue.toThisObject(exec)); |
56 | |
57 | int argumentCount = static_cast<int>(args.size()); |
58 | Vector<JSValueRef, 16> arguments(argumentCount); |
59 | for (int i = 0; i < argumentCount; i++) |
60 | arguments[i] = toRef(exec, v: args.at(idx: i)); |
61 | |
62 | JSValueRef exception = 0; |
63 | JSValueRef result; |
64 | { |
65 | APICallbackShim callbackShim(exec); |
66 | result = static_cast<JSCallbackFunction*>(functionObject)->m_callback(execRef, functionRef, thisObjRef, argumentCount, arguments.data(), &exception); |
67 | } |
68 | if (exception) |
69 | exec->setException(toJS(exec, v: exception)); |
70 | |
71 | return toJS(exec, v: result); |
72 | } |
73 | |
74 | CallType JSCallbackFunction::getCallData(CallData& callData) |
75 | { |
76 | callData.native.function = call; |
77 | return CallTypeHost; |
78 | } |
79 | |
80 | } // namespace JSC |
81 | |