1/*
2 *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
3 *  Copyright (C) 2001 Peter Kelly (pmk@post.com)
4 *  Copyright (C) 2003, 2007, 2013 Apple Inc.
5 *
6 *  This library is free software; you can redistribute it and/or
7 *  modify it under the terms of the GNU Library General Public
8 *  License as published by the Free Software Foundation; either
9 *  version 2 of the License, or (at your option) any later version.
10 *
11 *  This library is distributed in the hope that it will be useful,
12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 *  Library General Public License for more details.
15 *
16 *  You should have received a copy of the GNU Library General Public License
17 *  along with this library; see the file COPYING.LIB.  If not, write to
18 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 *  Boston, MA 02110-1301, USA.
20 *
21 */
22
23#include "config.h"
24#include "Completion.h"
25
26#include "CallFrame.h"
27#include "CodeProfiling.h"
28#include "Debugger.h"
29#include "Interpreter.h"
30#include "JSGlobalObject.h"
31#include "JSLock.h"
32#include "JSCInlines.h"
33#include "Parser.h"
34#include <wtf/WTFThreadData.h>
35
36namespace JSC {
37
38bool checkSyntax(ExecState* exec, const SourceCode& source, JSValue* returnedException)
39{
40    JSLockHolder lock(exec);
41    RELEASE_ASSERT(exec->vm().atomicStringTable() == wtfThreadData().atomicStringTable());
42
43    ProgramExecutable* program = ProgramExecutable::create(exec, source);
44    JSObject* error = program->checkSyntax(exec);
45    if (error) {
46        if (returnedException)
47            *returnedException = error;
48        return false;
49    }
50
51    return true;
52}
53
54bool checkSyntax(VM& vm, const SourceCode& source, ParserError& error)
55{
56    JSLockHolder lock(vm);
57    RELEASE_ASSERT(vm.atomicStringTable() == wtfThreadData().atomicStringTable());
58    RefPtr<ProgramNode> programNode = parse<ProgramNode>(&vm, source, 0, Identifier(), JSParseNormal, JSParseProgramCode, error);
59    return programNode;
60}
61
62JSValue evaluate(ExecState* exec, const SourceCode& source, JSValue thisValue, JSValue* returnedException)
63{
64    JSLockHolder lock(exec);
65    RELEASE_ASSERT(exec->vm().atomicStringTable() == wtfThreadData().atomicStringTable());
66    RELEASE_ASSERT(!exec->vm().isCollectorBusy());
67
68    CodeProfiling profile(source);
69
70    ProgramExecutable* program = ProgramExecutable::create(exec, source);
71    if (!program) {
72        if (returnedException)
73            *returnedException = exec->vm().exception();
74
75        exec->vm().clearException();
76        return jsUndefined();
77    }
78
79    if (!thisValue || thisValue.isUndefinedOrNull())
80        thisValue = exec->vmEntryGlobalObject();
81    JSObject* thisObj = jsCast<JSObject*>(thisValue.toThis(exec, NotStrictMode));
82    JSValue result = exec->interpreter()->execute(program, exec, thisObj);
83
84    if (exec->hadException()) {
85        if (returnedException)
86            *returnedException = exec->exception();
87
88        exec->clearException();
89        return jsUndefined();
90    }
91
92    RELEASE_ASSERT(result);
93    return result;
94}
95
96} // namespace JSC
97