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
124
125
126
127
128
129
130
131
|
/*
* Copyright (C) 2015, 2016 Canon Inc. All rights reserved.
* Copyright (C) 2016 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include "JSDOMBuiltinConstructorBase.h"
#include "JSDOMExceptionHandling.h"
#include "JSDOMWrapperCache.h"
namespace WebCore {
template<typename JSClass> class JSDOMBuiltinConstructor : public JSDOMBuiltinConstructorBase {
public:
using Base = JSDOMBuiltinConstructorBase;
static JSDOMBuiltinConstructor* create(JSC::VM&, JSC::Structure*, JSDOMGlobalObject&);
static JSC::Structure* createStructure(JSC::VM&, JSC::JSGlobalObject&, JSC::JSValue prototype);
DECLARE_INFO;
// Usually defined for each specialization class.
static JSC::JSValue prototypeForStructure(JSC::VM&, const JSDOMGlobalObject&);
private:
JSDOMBuiltinConstructor(JSC::Structure* structure, JSDOMGlobalObject& globalObject)
: Base(structure, globalObject)
{
}
void finishCreation(JSC::VM&, JSDOMGlobalObject&);
static JSC::ConstructType getConstructData(JSC::JSCell*, JSC::ConstructData&);
static JSC::EncodedJSValue JSC_HOST_CALL construct(JSC::ExecState*);
JSC::EncodedJSValue callConstructor(JSC::ExecState&, JSC::JSObject&);
JSC::EncodedJSValue callConstructor(JSC::ExecState&, JSC::JSObject*);
// Usually defined for each specialization class.
void initializeProperties(JSC::VM&, JSDOMGlobalObject&) { }
// Must be defined for each specialization class.
JSC::FunctionExecutable* initializeExecutable(JSC::VM&);
};
template<typename JSClass> inline JSDOMBuiltinConstructor<JSClass>* JSDOMBuiltinConstructor<JSClass>::create(JSC::VM& vm, JSC::Structure* structure, JSDOMGlobalObject& globalObject)
{
JSDOMBuiltinConstructor* constructor = new (NotNull, JSC::allocateCell<JSDOMBuiltinConstructor>(vm.heap)) JSDOMBuiltinConstructor(structure, globalObject);
constructor->finishCreation(vm, globalObject);
return constructor;
}
template<typename JSClass> inline JSC::Structure* JSDOMBuiltinConstructor<JSClass>::createStructure(JSC::VM& vm, JSC::JSGlobalObject& globalObject, JSC::JSValue prototype)
{
return JSC::Structure::create(vm, &globalObject, prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags), info());
}
template<typename JSClass> inline void JSDOMBuiltinConstructor<JSClass>::finishCreation(JSC::VM& vm, JSDOMGlobalObject& globalObject)
{
Base::finishCreation(vm);
ASSERT(inherits(vm, info()));
setInitializeFunction(vm, *JSC::JSFunction::createBuiltinFunction(vm, initializeExecutable(vm), &globalObject));
initializeProperties(vm, globalObject);
}
template<typename JSClass> inline JSC::EncodedJSValue JSDOMBuiltinConstructor<JSClass>::callConstructor(JSC::ExecState& state, JSC::JSObject& object)
{
Base::callFunctionWithCurrentArguments(state, object, *initializeFunction());
return JSC::JSValue::encode(&object);
}
template<typename JSClass> inline JSC::EncodedJSValue JSDOMBuiltinConstructor<JSClass>::callConstructor(JSC::ExecState& state, JSC::JSObject* object)
{
JSC::VM& vm = state.vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (!object)
return throwConstructorScriptExecutionContextUnavailableError(state, scope, info()->className);
return callConstructor(state, *object);
}
template<typename JSClass> inline
typename std::enable_if<JSDOMObjectInspector<JSClass>::isSimpleWrapper, JSC::JSObject&>::type createJSObject(JSDOMBuiltinConstructor<JSClass>& constructor)
{
auto& globalObject = *constructor.globalObject();
return *JSClass::create(getDOMStructure<JSClass>(globalObject.vm(), globalObject), &globalObject, JSClass::DOMWrapped::create());
}
template<typename JSClass> inline
typename std::enable_if<JSDOMObjectInspector<JSClass>::isBuiltin, JSC::JSObject&>::type createJSObject(JSDOMBuiltinConstructor<JSClass>& constructor)
{
auto& globalObject = *constructor.globalObject();
return *JSClass::create(getDOMStructure<JSClass>(globalObject.vm(), globalObject), &globalObject);
}
template<typename JSClass> inline
typename std::enable_if<JSDOMObjectInspector<JSClass>::isComplexWrapper, JSC::JSObject*>::type createJSObject(JSDOMBuiltinConstructor<JSClass>& constructor)
{
ScriptExecutionContext* context = constructor.scriptExecutionContext();
if (!context)
return nullptr;
auto& globalObject = *constructor.globalObject();
return JSClass::create(getDOMStructure<JSClass>(globalObject.vm(), globalObject), &globalObject, JSClass::DOMWrapped::create(*context));
}
template<typename JSClass> inline JSC::EncodedJSValue JSC_HOST_CALL JSDOMBuiltinConstructor<JSClass>::construct(JSC::ExecState* state)
{
ASSERT(state);
auto* castedThis = JSC::jsCast<JSDOMBuiltinConstructor*>(state->jsCallee());
return castedThis->callConstructor(*state, createJSObject(*castedThis));
}
template<typename JSClass> inline JSC::ConstructType JSDOMBuiltinConstructor<JSClass>::getConstructData(JSC::JSCell*, JSC::ConstructData& constructData)
{
constructData.native.function = construct;
return JSC::ConstructType::Host;
}
} // namespace WebCore
|
