1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/*
* Copyright (C) 2006, 2008 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 "JSCallbackFunction.h"
#include "APIShims.h"
#include "APICast.h"
#include "CodeBlock.h"
#include "ExceptionHelpers.h"
#include "JSFunction.h"
#include "FunctionPrototype.h"
#include <runtime/JSGlobalObject.h>
#include <runtime/JSLock.h>
#include <wtf/Vector.h>
namespace JSC {
ASSERT_CLASS_FITS_IN_CELL(JSCallbackFunction);
const ClassInfo JSCallbackFunction::info = { "CallbackFunction", &InternalFunction::info, 0, 0 };
JSCallbackFunction::JSCallbackFunction(ExecState* exec, JSGlobalObject* globalObject, JSObjectCallAsFunctionCallback callback, const Identifier& name)
: InternalFunction(&exec->globalData(), globalObject, globalObject->callbackFunctionStructure(), name)
, m_callback(callback)
{
}
EncodedJSValue JSCallbackFunction::call(ExecState* exec)
{
JSContextRef execRef = toRef(exec);
JSObjectRef functionRef = toRef(exec->callee());
JSObjectRef thisObjRef = toRef(exec->hostThisValue().toThisObject(exec));
int argumentCount = static_cast<int>(exec->argumentCount());
Vector<JSValueRef, 16> arguments(argumentCount);
for (int i = 0; i < argumentCount; i++)
arguments[i] = toRef(exec, exec->argument(i));
JSValueRef exception = 0;
JSValueRef result;
{
APICallbackShim callbackShim(exec);
result = static_cast<JSCallbackFunction*>(toJS(functionRef))->m_callback(execRef, functionRef, thisObjRef, argumentCount, arguments.data(), &exception);
}
if (exception)
throwError(exec, toJS(exec, exception));
return JSValue::encode(toJS(exec, result));
}
CallType JSCallbackFunction::getCallData(CallData& callData)
{
callData.native.function = call;
return CallTypeHost;
}
} // namespace JSC
|
