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 Apple Inc. All rights reserved.
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 #ifndef Completion_h
24 #define Completion_h
25 
26 #include "JSValue.h"
27 
28 namespace JSC {
29 
30     class ExecState;
31     class ScopeChain;
32     class SourceCode;
33 
34     enum ComplType { Normal, Break, Continue, ReturnValue, Throw, Interrupted };
35 
36     /*
37      * Completion objects are used to convey the return status and value
38      * from functions.
39      */
40     class Completion {
41     public:
42         Completion(ComplType type = Normal, JSValue value = JSValue())
m_type(type)43             : m_type(type)
44             , m_value(value)
45         {
46         }
47 
complType()48         ComplType complType() const { return m_type; }
value()49         JSValue value() const { return m_value; }
setValue(JSValue v)50         void setValue(JSValue v) { m_value = v; }
isValueCompletion()51         bool isValueCompletion() const { return m_value; }
52 
53     private:
54         ComplType m_type;
55         JSValue m_value;
56     };
57 
58     Completion checkSyntax(ExecState*, const SourceCode&);
59     Completion evaluate(ExecState*, ScopeChain&, const SourceCode&, JSValue thisValue = JSValue());
60 
61 } // namespace JSC
62 
63 #endif // Completion_h
64