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
|
/*
* Copyright (C) 2016-2022 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.
*/
#pragma once
#if ENABLE(WEBASSEMBLY)
#include "JSDestructibleObject.h"
#include "JSWebAssemblyGlobal.h"
#include "JSWebAssemblyMemory.h"
#include "JSWebAssemblyTable.h"
#include "WasmCreationMode.h"
#include "WasmInstance.h"
#include <wtf/FixedVector.h>
#include <wtf/Ref.h>
namespace JSC {
class JSModuleNamespaceObject;
class JSWebAssemblyModule;
class WebAssemblyModuleRecord;
namespace Wasm {
class CalleeGroup;
}
class JSWebAssemblyInstance final : public JSNonFinalObject {
friend class LLIntOffsetsExtractor;
public:
using Base = JSNonFinalObject;
static constexpr bool needsDestruction = true;
static void destroy(JSCell*);
template<typename CellType, SubspaceAccess mode>
static GCClient::IsoSubspace* subspaceFor(VM& vm)
{
return vm.webAssemblyInstanceSpace<mode>();
}
static Identifier createPrivateModuleKey();
static JSWebAssemblyInstance* tryCreate(VM&, JSGlobalObject*, const Identifier& moduleKey, JSWebAssemblyModule*, JSObject* importObject, Structure*, Ref<Wasm::Module>&&, Wasm::CreationMode);
static Structure* createStructure(VM&, JSGlobalObject*, JSValue);
DECLARE_EXPORT_INFO;
void initializeImports(JSGlobalObject*, JSObject* importObject, Wasm::CreationMode);
void finalizeCreation(VM&, JSGlobalObject*, Ref<Wasm::CalleeGroup>&&, Wasm::CreationMode);
Wasm::Instance& instance() { return m_instance.get(); }
WebAssemblyModuleRecord* moduleRecord() { return m_moduleRecord.get(); }
JSWebAssemblyMemory* memory() { return m_memory.get(); }
void setMemory(VM& vm, JSWebAssemblyMemory* value) {
m_memory.set(vm, this, value);
instance().setMemory(memory()->memory());
}
Wasm::MemoryMode memoryMode() { return memory()->memory().mode(); }
JSWebAssemblyTable* table(unsigned i) { return m_tables[i].get(); }
void setTable(VM& vm, uint32_t index, JSWebAssemblyTable* value)
{
ASSERT(index < m_tables.size());
ASSERT(!table(index));
m_tables[index].set(vm, this, value);
instance().setTable(index, *table(index)->table());
}
void linkGlobal(VM& vm, uint32_t index, JSWebAssemblyGlobal* value)
{
ASSERT(value == value->global()->owner<JSWebAssemblyGlobal>());
instance().linkGlobal(index, *value->global());
vm.writeBarrier(this, value);
}
JSGlobalObject* globalObject() const { return m_globalObject.get(); }
JSWebAssemblyModule* module() const { return m_module.get(); }
static size_t offsetOfInstance() { return OBJECT_OFFSETOF(JSWebAssemblyInstance, m_instance); }
static size_t offsetOfModule() { return OBJECT_OFFSETOF(JSWebAssemblyInstance, m_module); }
static size_t offsetOfGlobalObject() { return OBJECT_OFFSETOF(JSWebAssemblyInstance, m_globalObject); }
static size_t offsetOfVM() { return OBJECT_OFFSETOF(JSWebAssemblyInstance, m_vm); }
private:
JSWebAssemblyInstance(VM&, Structure*, Ref<Wasm::Instance>&&);
void finishCreation(VM&, JSWebAssemblyModule*, WebAssemblyModuleRecord*);
DECLARE_VISIT_CHILDREN;
Ref<Wasm::Instance> m_instance;
VM* const m_vm;
WriteBarrier<JSGlobalObject> m_globalObject;
WriteBarrier<JSWebAssemblyModule> m_module;
WriteBarrier<WebAssemblyModuleRecord> m_moduleRecord;
WriteBarrier<JSWebAssemblyMemory> m_memory;
FixedVector<WriteBarrier<JSWebAssemblyTable>> m_tables;
};
} // namespace JSC
#endif // ENABLE(WEBASSEMBLY)
|
