1/*
2 * Copyright (C) 2015-2016 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. ``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 "AbstractModuleRecord.h"
29#include "SourceCode.h"
30#include "VariableEnvironment.h"
31
32namespace JSC {
33
34class ModuleProgramExecutable;
35
36// Based on the Source Text Module Record
37// http://www.ecma-international.org/ecma-262/6.0/#sec-source-text-module-records
38class JSModuleRecord final : public AbstractModuleRecord {
39 friend class LLIntOffsetsExtractor;
40public:
41 typedef AbstractModuleRecord Base;
42
43 DECLARE_EXPORT_INFO;
44
45 static Structure* createStructure(VM&, JSGlobalObject*, JSValue);
46 static JSModuleRecord* create(ExecState*, VM&, Structure*, const Identifier&, const SourceCode&, const VariableEnvironment&, const VariableEnvironment&);
47
48 void link(ExecState*, JSValue scriptFetcher);
49 JS_EXPORT_PRIVATE JSValue evaluate(ExecState*);
50
51 const SourceCode& sourceCode() const { return m_sourceCode; }
52 const VariableEnvironment& declaredVariables() const { return m_declaredVariables; }
53 const VariableEnvironment& lexicalVariables() const { return m_lexicalVariables; }
54
55private:
56 JSModuleRecord(VM&, Structure*, const Identifier&, const SourceCode&, const VariableEnvironment&, const VariableEnvironment&);
57
58 void finishCreation(ExecState*, VM&);
59
60 static void visitChildren(JSCell*, SlotVisitor&);
61 static void destroy(JSCell*);
62
63 void instantiateDeclarations(ExecState*, ModuleProgramExecutable*, JSValue scriptFetcher);
64
65 SourceCode m_sourceCode;
66 VariableEnvironment m_declaredVariables;
67 VariableEnvironment m_lexicalVariables;
68 WriteBarrier<ModuleProgramExecutable> m_moduleProgramExecutable;
69};
70
71} // namespace JSC
72