1/*
2 * Copyright (C) 2007-2009, 2015 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 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include "config.h"
30#include "JSCallbackData.h"
31
32#include "Document.h"
33#include "JSDOMBinding.h"
34#include "JSExecState.h"
35#include "JSExecStateInstrumentation.h"
36#include <JavaScriptCore/Exception.h>
37
38namespace WebCore {
39using namespace JSC;
40
41JSValue JSCallbackData::invokeCallback(JSDOMGlobalObject& globalObject, JSObject* callback, JSValue thisValue, MarkedArgumentBuffer& args, CallbackType method, PropertyName functionName, NakedPtr<JSC::Exception>& returnedException)
42{
43 ASSERT(callback);
44
45 ExecState* exec = globalObject.globalExec();
46 VM& vm = exec->vm();
47 JSValue function;
48 CallData callData;
49 CallType callType = CallType::None;
50
51 if (method != CallbackType::Object) {
52 function = callback;
53 callType = callback->methodTable(vm)->getCallData(callback, callData);
54 }
55 if (callType == CallType::None) {
56 if (method == CallbackType::Function) {
57 returnedException = JSC::Exception::create(vm, createTypeError(exec));
58 return JSValue();
59 }
60
61 ASSERT(!functionName.isNull());
62 function = callback->get(exec, functionName);
63 callType = getCallData(vm, function, callData);
64 if (callType == CallType::None) {
65 returnedException = JSC::Exception::create(vm, createTypeError(exec));
66 return JSValue();
67 }
68 }
69
70 ASSERT(!function.isEmpty());
71 ASSERT(callType != CallType::None);
72
73 ScriptExecutionContext* context = globalObject.scriptExecutionContext();
74 // We will fail to get the context if the frame has been detached.
75 if (!context)
76 return JSValue();
77
78 InspectorInstrumentationCookie cookie = JSExecState::instrumentFunctionCall(context, callType, callData);
79
80 returnedException = nullptr;
81 JSValue result = JSExecState::profiledCall(exec, JSC::ProfilingReason::Other, function, callType, callData, thisValue, args, returnedException);
82
83 InspectorInstrumentation::didCallFunction(cookie, context);
84
85 return result;
86}
87
88void JSCallbackDataWeak::visitJSFunction(JSC::SlotVisitor& vistor)
89{
90 vistor.append(m_callback);
91}
92
93bool JSCallbackDataWeak::WeakOwner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown>, void* context, SlotVisitor& visitor, const char** reason)
94{
95 if (UNLIKELY(reason))
96 *reason = "Context is opaque root"; // FIXME: what is the context.
97 return visitor.containsOpaqueRoot(context);
98}
99
100} // namespace WebCore
101