1/*
2 * Copyright (C) 2016 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 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "LazyClassStructure.h"
28
29#include "JSCInlines.h"
30#include "LazyPropertyInlines.h"
31
32namespace JSC {
33
34LazyClassStructure::Initializer::Initializer(VM& vm, JSGlobalObject* global, LazyClassStructure& classStructure, const StructureInitializer& structureInit)
35 : vm(vm)
36 , global(global)
37 , classStructure(classStructure)
38 , structureInit(structureInit)
39{
40}
41
42void LazyClassStructure::Initializer::setPrototype(JSObject* prototype)
43{
44 RELEASE_ASSERT(!this->prototype);
45 RELEASE_ASSERT(!structure);
46 RELEASE_ASSERT(!constructor);
47
48 this->prototype = prototype;
49}
50
51void LazyClassStructure::Initializer::setStructure(Structure* structure)
52{
53 RELEASE_ASSERT(!this->structure);
54 RELEASE_ASSERT(!constructor);
55
56 this->structure = structure;
57 structureInit.set(structure);
58
59 if (!prototype)
60 prototype = structure->storedPrototypeObject();
61}
62
63void LazyClassStructure::Initializer::setConstructor(PropertyName propertyName, JSObject* constructor)
64{
65 RELEASE_ASSERT(structure);
66 RELEASE_ASSERT(prototype);
67 RELEASE_ASSERT(!this->constructor);
68
69 this->constructor = constructor;
70
71 prototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, constructor, static_cast<unsigned>(PropertyAttribute::DontEnum));
72 if (!propertyName.isNull())
73 global->putDirect(vm, propertyName, constructor, static_cast<unsigned>(PropertyAttribute::DontEnum));
74 classStructure.m_constructor.set(vm, global, constructor);
75}
76
77void LazyClassStructure::Initializer::setConstructor(JSObject* constructor)
78{
79 String name;
80 if (InternalFunction* internalFunction = jsDynamicCast<InternalFunction*>(vm, constructor))
81 name = internalFunction->name();
82 else if (JSFunction* function = jsDynamicCast<JSFunction*>(vm, constructor))
83 name = function->name(vm);
84 else
85 RELEASE_ASSERT_NOT_REACHED();
86
87 setConstructor(Identifier::fromString(&vm, name), constructor);
88}
89
90void LazyClassStructure::visit(SlotVisitor& visitor)
91{
92 m_structure.visit(visitor);
93 visitor.append(m_constructor);
94}
95
96void LazyClassStructure::dump(PrintStream& out) const
97{
98 out.print("<structure = ", m_structure, ", constructor = ", RawPointer(m_constructor.get()), ">");
99}
100
101} // namespace JSC
102
103