diff -r 000000000000 -r 876b1a06bc25 tools/icheck/parser/src/libs/cplusplus/pp-engine.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tools/icheck/parser/src/libs/cplusplus/pp-engine.h Wed Aug 25 15:49:42 2010 +0300 @@ -0,0 +1,212 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +/* + Copyright 2005 Roberto Raggi + + Permission to use, copy, modify, distribute, and sell this software and its + documentation for any purpose is hereby granted without fee, provided that + the above copyright notice appear in all copies and that both that + copyright notice and this permission notice appear in supporting + documentation. + + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + KDEVELOP TEAM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +*/ + +#ifndef CPLUSPLUS_PP_ENGINE_H +#define CPLUSPLUS_PP_ENGINE_H + +#include "PreprocessorClient.h" +#include "pp-macro-expander.h" + +#include +#include +#include + +namespace CPlusPlus { + +struct Value; +class Environment; + +class CPLUSPLUS_EXPORT Preprocessor +{ +public: + Preprocessor(Client *client, Environment *env); + + QByteArray operator()(const QString &filename, const QString &source); + QByteArray operator()(const QString &filename, const QByteArray &source); + + void preprocess(const QString &filename, + const QByteArray &source, + QByteArray *result); + + bool expandMacros() const; + void setExpandMacros(bool expandMacros); + +private: + enum { MAX_LEVEL = 512 }; + + enum PP_DIRECTIVE_TYPE + { + PP_UNKNOWN_DIRECTIVE, + PP_DEFINE, + PP_IMPORT, + PP_INCLUDE, + PP_INCLUDE_NEXT, + PP_ELIF, + PP_ELSE, + PP_ENDIF, + PP_IF, + PP_IFDEF, + PP_IFNDEF, + PP_UNDEF + }; + + typedef const CPlusPlus::Token *TokenIterator; + + struct State { + QByteArray source; + QVector tokens; + TokenIterator dot; + }; + + bool markGeneratedTokens(bool markGeneratedTokens, TokenIterator dot = 0); + + QByteArray expand(const QByteArray &source); + void expand(const QByteArray &source, QByteArray *result); + void expand(const char *first, const char *last, QByteArray *result); + void expandBuiltinMacro(TokenIterator identifierToken, + const QByteArray &spell); + void expandObjectLikeMacro(TokenIterator identifierToken, + const QByteArray &spell, + Macro *m, QByteArray *result); + void expandFunctionLikeMacro(TokenIterator identifierToken, Macro *m, + const QVector &actuals); + + void resetIfLevel(); + bool testIfLevel(); + int skipping() const; + + PP_DIRECTIVE_TYPE classifyDirective(const QByteArray &directive) const; + + Value evalExpression(TokenIterator firstToken, + TokenIterator lastToken, + const QByteArray &source) const; + + QVector tokenize(const QByteArray &text) const; + + const char *startOfToken(const CPlusPlus::Token &token) const; + const char *endOfToken(const CPlusPlus::Token &token) const; + + QByteArray tokenSpell(const CPlusPlus::Token &token) const; + QByteArray tokenText(const CPlusPlus::Token &token) const; // does a deep copy + + void collectActualArguments(QVector *actuals); + MacroArgumentReference collectOneActualArgument(); + + void processNewline(bool force = false); + + void processSkippingBlocks(bool skippingBlocks, + TokenIterator dot, TokenIterator lastToken); + + Macro *processObjectLikeMacro(TokenIterator identifierToken, + const QByteArray &spell, + Macro *m); + + void processDirective(TokenIterator dot, TokenIterator lastToken); + void processInclude(bool skipCurrentPath, + TokenIterator dot, TokenIterator lastToken, + bool acceptMacros = true); + void processDefine(TokenIterator dot, TokenIterator lastToken); + void processIf(TokenIterator dot, TokenIterator lastToken); + void processElse(TokenIterator dot, TokenIterator lastToken); + void processElif(TokenIterator dot, TokenIterator lastToken); + void processEndif(TokenIterator dot, TokenIterator lastToken); + void processIfdef(bool checkUndefined, + TokenIterator dot, TokenIterator lastToken); + void processUndef(TokenIterator dot, TokenIterator lastToken); + + bool isQtReservedWord(const QByteArray &name) const; + + State state() const; + void pushState(const State &state); + void popState(); + + State createStateFromSource(const QByteArray &source) const; + + void out(const QByteArray &text); + void out(char ch); + void out(const char *s); + + QString string(const char *first, int len) const; + +private: + Client *client; + Environment *env; + MacroExpander _expand; + + QBitArray _skipping; // ### move in state + QBitArray _trueTest; // ### move in state + int iflevel; // ### move in state + + QList _savedStates; + + QByteArray _source; + QVector _tokens; + TokenIterator _dot; + + QByteArray *_result; + bool _markGeneratedTokens; + + QString _originalSource; + bool _expandMacros; +}; + +} // namespace CPlusPlus + +#endif // CPLUSPLUS_PP_ENGINE_H