1/*
2 * Copyright (C) 2009-2019 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. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "ExecutableToCodeBlockEdge.h"
29#include "GlobalExecutable.h"
30
31namespace JSC {
32
33class ProgramExecutable final : public GlobalExecutable {
34 friend class LLIntOffsetsExtractor;
35public:
36 using Base = GlobalExecutable;
37 static constexpr unsigned StructureFlags = Base::StructureFlags | StructureIsImmortal;
38
39 template<typename CellType, SubspaceAccess>
40 static IsoSubspace* subspaceFor(VM& vm)
41 {
42 return &vm.programExecutableSpace.space;
43 }
44
45 static ProgramExecutable* create(JSGlobalObject* globalObject, const SourceCode& source)
46 {
47 VM& vm = getVM(globalObject);
48 ProgramExecutable* executable = new (NotNull, allocateCell<ProgramExecutable>(vm.heap)) ProgramExecutable(globalObject, source);
49 executable->finishCreation(vm);
50 return executable;
51 }
52
53 JSObject* initializeGlobalProperties(VM&, JSGlobalObject*, JSScope*);
54
55 static void destroy(JSCell*);
56
57 ProgramCodeBlock* codeBlock()
58 {
59 return bitwise_cast<ProgramCodeBlock*>(ExecutableToCodeBlockEdge::unwrap(m_programCodeBlock.get()));
60 }
61
62 Ref<JITCode> generatedJITCode()
63 {
64 return generatedJITCodeForCall();
65 }
66
67 static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue proto)
68 {
69 return Structure::create(vm, globalObject, proto, TypeInfo(ProgramExecutableType, StructureFlags), info());
70 }
71
72 DECLARE_INFO;
73
74 ExecutableInfo executableInfo() const { return ExecutableInfo(usesEval(), isStrictMode(), false, false, ConstructorKind::None, JSParserScriptMode::Classic, SuperBinding::NotNeeded, SourceParseMode::ProgramMode, derivedContextType(), isArrowFunctionContext(), false, EvalContextType::None); }
75
76 TemplateObjectMap& ensureTemplateObjectMap(VM&);
77
78private:
79 friend class ExecutableBase;
80 friend class ScriptExecutable;
81
82 ProgramExecutable(JSGlobalObject*, const SourceCode&);
83
84 static void visitChildren(JSCell*, SlotVisitor&);
85
86 WriteBarrier<UnlinkedProgramCodeBlock> m_unlinkedProgramCodeBlock;
87 WriteBarrier<ExecutableToCodeBlockEdge> m_programCodeBlock;
88 std::unique_ptr<TemplateObjectMap> m_templateObjectMap;
89};
90
91} // namespace JSC
92