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. ``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#include "config.h"
27#include "DirectEvalExecutable.h"
28
29#include "CodeCache.h"
30#include "Debugger.h"
31#include "Error.h"
32#include "HeapInlines.h"
33#include "JSCJSValueInlines.h"
34#include "ParserError.h"
35
36namespace JSC {
37
38DirectEvalExecutable* DirectEvalExecutable::create(ExecState* exec, const SourceCode& source, bool isInStrictContext, DerivedContextType derivedContextType, bool isArrowFunctionContext, EvalContextType evalContextType, const VariableEnvironment* variablesUnderTDZ)
39{
40 VM& vm = exec->vm();
41 auto scope = DECLARE_THROW_SCOPE(vm);
42
43 JSGlobalObject* globalObject = exec->lexicalGlobalObject();
44 if (!globalObject->evalEnabled()) {
45 throwException(exec, scope, createEvalError(exec, globalObject->evalDisabledErrorMessage()));
46 return 0;
47 }
48
49 auto* executable = new (NotNull, allocateCell<DirectEvalExecutable>(vm.heap)) DirectEvalExecutable(exec, source, isInStrictContext, derivedContextType, isArrowFunctionContext, evalContextType);
50 executable->finishCreation(vm);
51
52 ParserError error;
53 JSParserStrictMode strictMode = executable->isStrictMode() ? JSParserStrictMode::Strict : JSParserStrictMode::NotStrict;
54 OptionSet<CodeGenerationMode> codeGenerationMode = globalObject->defaultCodeGenerationMode();
55
56 // We don't bother with CodeCache here because direct eval uses a specialized DirectEvalCodeCache.
57 UnlinkedEvalCodeBlock* unlinkedEvalCode = generateUnlinkedCodeBlock<UnlinkedEvalCodeBlock>(
58 vm, executable, executable->source(), strictMode, JSParserScriptMode::Classic, codeGenerationMode, error, evalContextType, variablesUnderTDZ);
59
60 if (globalObject->hasDebugger())
61 globalObject->debugger()->sourceParsed(exec, executable->source().provider(), error.line(), error.message());
62
63 if (error.isValid()) {
64 throwVMError(exec, scope, error.toErrorObject(globalObject, executable->source()));
65 return nullptr;
66 }
67
68 executable->m_unlinkedEvalCodeBlock.set(vm, executable, unlinkedEvalCode);
69
70 return executable;
71}
72
73DirectEvalExecutable::DirectEvalExecutable(ExecState* exec, const SourceCode& source, bool inStrictContext, DerivedContextType derivedContextType, bool isArrowFunctionContext, EvalContextType evalContextType)
74 : EvalExecutable(exec, source, inStrictContext, derivedContextType, isArrowFunctionContext, evalContextType)
75{
76}
77
78} // namespace JSC
79