1/*
2 * Copyright (C) 2015, 2016 Canon Inc. All rights reserved.
3 * Copyright (C) 2016 Apple Inc. All rights reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20#pragma once
21
22#include "JSDOMConstructorBase.h"
23
24namespace WebCore {
25
26template<typename JSClass> class JSDOMConstructorNotConstructable : public JSDOMConstructorBase {
27public:
28 using Base = JSDOMConstructorBase;
29
30 static JSDOMConstructorNotConstructable* create(JSC::VM&, JSC::Structure*, JSDOMGlobalObject&);
31 static JSC::Structure* createStructure(JSC::VM&, JSC::JSGlobalObject&, JSC::JSValue prototype);
32
33 DECLARE_INFO;
34
35 // Must be defined for each specialization class.
36 static JSC::JSValue prototypeForStructure(JSC::VM&, const JSDOMGlobalObject&);
37
38private:
39 JSDOMConstructorNotConstructable(JSC::Structure* structure, JSDOMGlobalObject& globalObject)
40 : Base(structure, globalObject)
41 {
42 }
43
44 void finishCreation(JSC::VM&, JSDOMGlobalObject&);
45
46 // Usually defined for each specialization class.
47 void initializeProperties(JSC::VM&, JSDOMGlobalObject&) { }
48
49 static JSC::EncodedJSValue JSC_HOST_CALL callThrowTypeError(JSC::ExecState* exec)
50 {
51 JSC::VM& vm = exec->vm();
52 auto scope = DECLARE_THROW_SCOPE(vm);
53 JSC::throwTypeError(exec, scope, "Illegal constructor"_s);
54 return JSC::JSValue::encode(JSC::jsNull());
55 }
56
57 static JSC::CallType getCallData(JSC::JSCell*, JSC::CallData& callData)
58 {
59 callData.native.function = callThrowTypeError;
60 return JSC::CallType::Host;
61 }
62};
63
64template<typename JSClass> inline JSDOMConstructorNotConstructable<JSClass>* JSDOMConstructorNotConstructable<JSClass>::create(JSC::VM& vm, JSC::Structure* structure, JSDOMGlobalObject& globalObject)
65{
66 JSDOMConstructorNotConstructable* constructor = new (NotNull, JSC::allocateCell<JSDOMConstructorNotConstructable>(vm.heap)) JSDOMConstructorNotConstructable(structure, globalObject);
67 constructor->finishCreation(vm, globalObject);
68 return constructor;
69}
70
71template<typename JSClass> inline JSC::Structure* JSDOMConstructorNotConstructable<JSClass>::createStructure(JSC::VM& vm, JSC::JSGlobalObject& globalObject, JSC::JSValue prototype)
72{
73 return JSC::Structure::create(vm, &globalObject, prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags), info());
74}
75
76template<typename JSClass> inline void JSDOMConstructorNotConstructable<JSClass>::finishCreation(JSC::VM& vm, JSDOMGlobalObject& globalObject)
77{
78 Base::finishCreation(vm);
79 ASSERT(inherits(vm, info()));
80 initializeProperties(vm, globalObject);
81}
82
83} // namespace WebCore
84