|
1 /**************************************************************************** |
|
2 ** |
|
3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
|
4 ** All rights reserved. |
|
5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
|
6 ** |
|
7 ** This file is part of the Qt Mobility Components. |
|
8 ** |
|
9 ** $QT_BEGIN_LICENSE:LGPL$ |
|
10 ** No Commercial Usage |
|
11 ** This file contains pre-release code and may not be distributed. |
|
12 ** You may use this file in accordance with the terms and conditions |
|
13 ** contained in the Technology Preview License Agreement accompanying |
|
14 ** this package. |
|
15 ** |
|
16 ** GNU Lesser General Public License Usage |
|
17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
|
18 ** General Public License version 2.1 as published by the Free Software |
|
19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
|
20 ** packaging of this file. Please review the following information to |
|
21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
|
22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
|
23 ** |
|
24 ** In addition, as a special exception, Nokia gives you certain additional |
|
25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
|
26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
|
27 ** |
|
28 ** If you have questions regarding the use of this file, please contact |
|
29 ** Nokia at qt-info@nokia.com. |
|
30 ** |
|
31 ** |
|
32 ** |
|
33 ** |
|
34 ** |
|
35 ** |
|
36 ** |
|
37 ** |
|
38 ** $QT_END_LICENSE$ |
|
39 ** |
|
40 ****************************************************************************/ |
|
41 /* |
|
42 Copyright 2005 Roberto Raggi <roberto@kdevelop.org> |
|
43 |
|
44 Permission to use, copy, modify, distribute, and sell this software and its |
|
45 documentation for any purpose is hereby granted without fee, provided that |
|
46 the above copyright notice appear in all copies and that both that |
|
47 copyright notice and this permission notice appear in supporting |
|
48 documentation. |
|
49 |
|
50 The above copyright notice and this permission notice shall be included in |
|
51 all copies or substantial portions of the Software. |
|
52 |
|
53 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
|
54 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
|
55 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
|
56 KDEVELOP TEAM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
|
57 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
|
58 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
|
59 */ |
|
60 |
|
61 #ifndef CPLUSPLUS_PP_ENGINE_H |
|
62 #define CPLUSPLUS_PP_ENGINE_H |
|
63 |
|
64 #include "PreprocessorClient.h" |
|
65 #include "pp-macro-expander.h" |
|
66 |
|
67 #include <Token.h> |
|
68 #include <QVector> |
|
69 #include <QBitArray> |
|
70 |
|
71 namespace CPlusPlus { |
|
72 |
|
73 struct Value; |
|
74 class Environment; |
|
75 |
|
76 class CPLUSPLUS_EXPORT Preprocessor |
|
77 { |
|
78 public: |
|
79 Preprocessor(Client *client, Environment *env); |
|
80 |
|
81 QByteArray operator()(const QString &filename, const QString &source); |
|
82 QByteArray operator()(const QString &filename, const QByteArray &source); |
|
83 |
|
84 void preprocess(const QString &filename, |
|
85 const QByteArray &source, |
|
86 QByteArray *result); |
|
87 |
|
88 bool expandMacros() const; |
|
89 void setExpandMacros(bool expandMacros); |
|
90 |
|
91 private: |
|
92 enum { MAX_LEVEL = 512 }; |
|
93 |
|
94 enum PP_DIRECTIVE_TYPE |
|
95 { |
|
96 PP_UNKNOWN_DIRECTIVE, |
|
97 PP_DEFINE, |
|
98 PP_IMPORT, |
|
99 PP_INCLUDE, |
|
100 PP_INCLUDE_NEXT, |
|
101 PP_ELIF, |
|
102 PP_ELSE, |
|
103 PP_ENDIF, |
|
104 PP_IF, |
|
105 PP_IFDEF, |
|
106 PP_IFNDEF, |
|
107 PP_UNDEF |
|
108 }; |
|
109 |
|
110 typedef const CPlusPlus::Token *TokenIterator; |
|
111 |
|
112 struct State { |
|
113 QByteArray source; |
|
114 QVector<CPlusPlus::Token> tokens; |
|
115 TokenIterator dot; |
|
116 }; |
|
117 |
|
118 bool markGeneratedTokens(bool markGeneratedTokens, TokenIterator dot = 0); |
|
119 |
|
120 QByteArray expand(const QByteArray &source); |
|
121 void expand(const QByteArray &source, QByteArray *result); |
|
122 void expand(const char *first, const char *last, QByteArray *result); |
|
123 void expandBuiltinMacro(TokenIterator identifierToken, |
|
124 const QByteArray &spell); |
|
125 void expandObjectLikeMacro(TokenIterator identifierToken, |
|
126 const QByteArray &spell, |
|
127 Macro *m, QByteArray *result); |
|
128 void expandFunctionLikeMacro(TokenIterator identifierToken, Macro *m, |
|
129 const QVector<MacroArgumentReference> &actuals); |
|
130 |
|
131 void resetIfLevel(); |
|
132 bool testIfLevel(); |
|
133 int skipping() const; |
|
134 |
|
135 PP_DIRECTIVE_TYPE classifyDirective(const QByteArray &directive) const; |
|
136 |
|
137 Value evalExpression(TokenIterator firstToken, |
|
138 TokenIterator lastToken, |
|
139 const QByteArray &source) const; |
|
140 |
|
141 QVector<CPlusPlus::Token> tokenize(const QByteArray &text) const; |
|
142 |
|
143 const char *startOfToken(const CPlusPlus::Token &token) const; |
|
144 const char *endOfToken(const CPlusPlus::Token &token) const; |
|
145 |
|
146 QByteArray tokenSpell(const CPlusPlus::Token &token) const; |
|
147 QByteArray tokenText(const CPlusPlus::Token &token) const; // does a deep copy |
|
148 |
|
149 void collectActualArguments(QVector<MacroArgumentReference> *actuals); |
|
150 MacroArgumentReference collectOneActualArgument(); |
|
151 |
|
152 void processNewline(bool force = false); |
|
153 |
|
154 void processSkippingBlocks(bool skippingBlocks, |
|
155 TokenIterator dot, TokenIterator lastToken); |
|
156 |
|
157 Macro *processObjectLikeMacro(TokenIterator identifierToken, |
|
158 const QByteArray &spell, |
|
159 Macro *m); |
|
160 |
|
161 void processDirective(TokenIterator dot, TokenIterator lastToken); |
|
162 void processInclude(bool skipCurrentPath, |
|
163 TokenIterator dot, TokenIterator lastToken, |
|
164 bool acceptMacros = true); |
|
165 void processDefine(TokenIterator dot, TokenIterator lastToken); |
|
166 void processIf(TokenIterator dot, TokenIterator lastToken); |
|
167 void processElse(TokenIterator dot, TokenIterator lastToken); |
|
168 void processElif(TokenIterator dot, TokenIterator lastToken); |
|
169 void processEndif(TokenIterator dot, TokenIterator lastToken); |
|
170 void processIfdef(bool checkUndefined, |
|
171 TokenIterator dot, TokenIterator lastToken); |
|
172 void processUndef(TokenIterator dot, TokenIterator lastToken); |
|
173 |
|
174 bool isQtReservedWord(const QByteArray &name) const; |
|
175 |
|
176 State state() const; |
|
177 void pushState(const State &state); |
|
178 void popState(); |
|
179 |
|
180 State createStateFromSource(const QByteArray &source) const; |
|
181 |
|
182 void out(const QByteArray &text); |
|
183 void out(char ch); |
|
184 void out(const char *s); |
|
185 |
|
186 QString string(const char *first, int len) const; |
|
187 |
|
188 private: |
|
189 Client *client; |
|
190 Environment *env; |
|
191 MacroExpander _expand; |
|
192 |
|
193 QBitArray _skipping; // ### move in state |
|
194 QBitArray _trueTest; // ### move in state |
|
195 int iflevel; // ### move in state |
|
196 |
|
197 QList<State> _savedStates; |
|
198 |
|
199 QByteArray _source; |
|
200 QVector<CPlusPlus::Token> _tokens; |
|
201 TokenIterator _dot; |
|
202 |
|
203 QByteArray *_result; |
|
204 bool _markGeneratedTokens; |
|
205 |
|
206 QString _originalSource; |
|
207 bool _expandMacros; |
|
208 }; |
|
209 |
|
210 } // namespace CPlusPlus |
|
211 |
|
212 #endif // CPLUSPLUS_PP_ENGINE_H |