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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
/*
* Copyright (C) 2003-2022 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 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 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 "runtime_method.h"
#include "JSDOMBinding.h"
#include "JSHTMLElement.h"
#include "JSPluginElementFunctions.h"
#include "WebCoreJSClientData.h"
#include "runtime_object.h"
#include <JavaScriptCore/Error.h>
#include <JavaScriptCore/FunctionPrototype.h>
#include <JavaScriptCore/JSGlobalObjectInlines.h>
using namespace WebCore;
namespace JSC {
using namespace Bindings;
WEBCORE_EXPORT const ClassInfo RuntimeMethod::s_info = { "RuntimeMethod"_s, &InternalFunction::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(RuntimeMethod) };
static JSC_DECLARE_HOST_FUNCTION(callRuntimeMethod);
static JSC_DECLARE_CUSTOM_GETTER(methodLengthGetter);
RuntimeMethod::RuntimeMethod(VM& vm, Structure* structure, Method* method)
// Callers will need to pass in the right global object corresponding to this native object "method".
: InternalFunction(vm, structure, callRuntimeMethod, nullptr)
, m_method(method)
{
}
void RuntimeMethod::finishCreation(VM& vm, const String& ident)
{
Base::finishCreation(vm, 0, ident);
ASSERT(inherits(info()));
}
JSC_DEFINE_CUSTOM_GETTER(methodLengthGetter, (JSGlobalObject* exec, EncodedJSValue thisValue, PropertyName))
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
RuntimeMethod* thisObject = jsDynamicCast<RuntimeMethod*>(JSValue::decode(thisValue));
if (!thisObject)
return throwVMTypeError(exec, scope);
return JSValue::encode(jsNumber(thisObject->method()->numParameters()));
}
bool RuntimeMethod::getOwnPropertySlot(JSObject* object, JSGlobalObject* exec, PropertyName propertyName, PropertySlot &slot)
{
VM& vm = exec->vm();
RuntimeMethod* thisObject = jsCast<RuntimeMethod*>(object);
if (propertyName == vm.propertyNames->length) {
slot.setCacheableCustom(thisObject, PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly | PropertyAttribute::DontEnum, methodLengthGetter);
return true;
}
return InternalFunction::getOwnPropertySlot(thisObject, exec, propertyName, slot);
}
GCClient::IsoSubspace* RuntimeMethod::subspaceForImpl(VM& vm)
{
return &static_cast<JSVMClientData*>(vm.clientData)->runtimeMethodSpace();
}
JSC_DEFINE_HOST_FUNCTION(callRuntimeMethod, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
RuntimeMethod* method = static_cast<RuntimeMethod*>(callFrame->jsCallee());
if (!method->method())
return JSValue::encode(jsUndefined());
RefPtr<Instance> instance;
JSValue thisValue = callFrame->thisValue();
if (thisValue.inherits<RuntimeObject>()) {
RuntimeObject* runtimeObject = static_cast<RuntimeObject*>(asObject(thisValue));
instance = runtimeObject->getInternalInstance();
if (!instance)
return JSValue::encode(throwRuntimeObjectInvalidAccessError(globalObject, scope));
} else {
// Calling a runtime object of a plugin element?
if (thisValue.inherits<JSHTMLElement>())
instance = pluginInstance(jsCast<JSHTMLElement*>(asObject(thisValue))->wrapped());
if (!instance)
return throwVMTypeError(globalObject, scope);
}
ASSERT(instance);
instance->begin();
JSValue result = instance->invokeMethod(globalObject, callFrame, method);
instance->end();
return JSValue::encode(result);
}
}
|
