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kjsinterpreter.h
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1 /*
2  * This file is part of the KDE libraries
3  * Copyright (C) 2008 Harri Porten (porten@kde.org)
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Library General Public
7  * License as published by the Free Software Foundation; either
8  * version 2 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Library General Public License for more details.
14  *
15  * You should have received a copy of the GNU Library General Public License
16  * along with this library; see the file COPYING.LIB. If not, write to
17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18  * Boston, MA 02110-1301, USA.
19  *
20  */
21 
22 #ifndef KJSINTERPRETER_H
23 #define KJSINTERPRETER_H
24 
25 #include "kjsapi_export.h"
26 #include "kjsobject.h"
27 #include "kjscontext.h"
28 
29 class KJSPrototype;
30 class KJSInterpreter;
31 class KJSInterpreterHandle;
32 class KJSResultHandle;
33 
37 class KJSAPI_EXPORT KJSResult
38 {
39  friend class KJSInterpreter;
40 public:
44  KJSResult();
48  KJSResult(const KJSResult&);
52  KJSResult& operator=(const KJSResult&);
56  ~KJSResult();
60  bool isException() const;
61 
65  QString errorMessage() const;
66  /*
67  * If the evaluation was successful, i.e. isException() is false
68  * this function returns the value returned by the script. Can be
69  * an "undefined" (isUndefined()) value.
70  */
71  KJSObject value() const;
72 
73 private:
74  KJSResultHandle* hnd;
75 };
76 
82 class KJSAPI_EXPORT KJSInterpreter
83 {
84  friend class KJSResult;
85  friend class KJSPrototype;
86  friend class KJSContext;
87 public:
91  KJSInterpreter();
95  KJSInterpreter(const KJSGlobalObject& global);
99  KJSInterpreter(const KJSInterpreter& other);
103  KJSInterpreter& operator=(const KJSInterpreter& other);
109  ~KJSInterpreter();
110 
114  KJSContext* globalContext();
118  const KJSContext* globalContext() const;
123  KJSObject globalObject();
130  KJSResult evaluate(const QString& sourceURL, int startingLineNumber,
131  const QString& code,
132  KJSObject* thisValue = 0);
136  KJSResult evaluate(const QString& code,
137  KJSObject* thisValue = 0);
138 
154  static bool normalizeCode(const QString& codeIn, QString* codeOut,
155  int* errLine = 0, QString* errMsg = 0);
156 private:
157  KJSInterpreter(KJSInterpreterHandle* h);
158  KJSInterpreterHandle* hnd;
159  KJSContext globCtx;
160 };
161 
162 #endif
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