tools/porting/src/tokenreplacements.h
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 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 qt3to4 porting application of the Qt Toolkit.
       
     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 #ifndef TOKENREPLACEMENTS_H
       
    43 #define TOKENREPLACEMENTS_H
       
    44 
       
    45 #include "tokenengine.h"
       
    46 #include "textreplacement.h"
       
    47 #include <QStringList>
       
    48 #include <QByteArray>
       
    49 
       
    50 QT_BEGIN_NAMESPACE
       
    51 
       
    52 void addLogSourceEntry(const QString &text, const TokenEngine::TokenContainer&, const int index);
       
    53 void addLogWarning(const QString &text);
       
    54 
       
    55 class TokenReplacement
       
    56 {
       
    57 public:
       
    58 
       
    59     virtual bool doReplace(const TokenEngine::TokenContainer& ,
       
    60                            int /*tokenIndex*/,
       
    61                            TextReplacements&){return false;};
       
    62     /*
       
    63         returns the replace key for this replacement. Every time a token matches the replace key,
       
    64         doReplace() will be called for this TokenReplacement.
       
    65     */
       
    66     virtual QByteArray getReplaceKey(){return QByteArray();};
       
    67     virtual ~TokenReplacement(){};
       
    68 };
       
    69 
       
    70 /*
       
    71     A TokenReplacement that change any token
       
    72 */
       
    73 class GenericTokenReplacement : public TokenReplacement
       
    74 {
       
    75 public:
       
    76     GenericTokenReplacement(QByteArray oldToken, QByteArray newToken);
       
    77     bool doReplace(const TokenEngine::TokenContainer &tokenContainer,
       
    78                    int tokenIndex, TextReplacements &textReplacements);
       
    79     QByteArray getReplaceKey();
       
    80 private:
       
    81     QByteArray oldToken;
       
    82     QByteArray newToken;
       
    83 };
       
    84 
       
    85 /*
       
    86     A TokenReplacement that changes tokens that specify class names.
       
    87     In some cases where the class name token is a part of a qualified name
       
    88     it is not correct to rename it. ex:
       
    89 
       
    90     QButton::toggleState
       
    91 
       
    92     Here it is wrong to rename QButton -> Q3Button, since there is
       
    93     a rule that says QButton::ToggleState -> QCheckBox::ToggleState,
       
    94     but no rule for Q3Button::ToggleState.
       
    95 */
       
    96 class ClassNameReplacement : public TokenReplacement
       
    97 {
       
    98 public:
       
    99     ClassNameReplacement(QByteArray oldToken, QByteArray newToken);
       
   100     bool doReplace(const TokenEngine::TokenContainer &tokenContainer,
       
   101                    int tokenIndex, TextReplacements &textReplacements);
       
   102     QByteArray getReplaceKey();
       
   103 private:
       
   104     QByteArray oldToken;
       
   105     QByteArray newToken;
       
   106 };
       
   107 
       
   108 /*
       
   109    Changes scoped tokens:
       
   110    AA::BB -> CC::DD
       
   111    oldToken corresponds to the AA::BB part, newToken corresponds CC::DD.
       
   112    Since this is a token replacement, the AA part of oldToken is typically
       
   113    unknown. This means that we might change tokens named BB that does not belong
       
   114    to the AA scope. Ast replacemnts will fix this.
       
   115 
       
   116 */
       
   117 class ScopedTokenReplacement : public TokenReplacement
       
   118 {
       
   119 public:
       
   120     ScopedTokenReplacement(const QByteArray &oldToken, const QByteArray &newToken);
       
   121     bool doReplace(const TokenEngine::TokenContainer &tokenContainer,
       
   122                    int tokenIndex, TextReplacements &textReplacements);
       
   123     QByteArray getReplaceKey();
       
   124 private:
       
   125     QByteArray oldName;
       
   126     QByteArray oldScope;
       
   127     QByteArray newName;
       
   128     QByteArray newScope;
       
   129     QByteArray newScopedName;
       
   130     bool strictMode;
       
   131 };
       
   132 
       
   133 class QualifiedNameParser
       
   134 {
       
   135 public:
       
   136     QualifiedNameParser(const TokenEngine::TokenContainer &tokenContainer,
       
   137                         const int tokenIndex);
       
   138     enum Direction { Left=-1, Right=1 };
       
   139     bool isPartOfQualifiedName();
       
   140     bool isValidIndex(int index);
       
   141     bool isQualifier();
       
   142     bool isName();
       
   143     int peek(Direction direction);
       
   144     int move(Direction direction);
       
   145 private:
       
   146     int nextScopeToken(Direction direction);
       
   147     int findScopeOperator(Direction direction);
       
   148     const TokenEngine::TokenContainer tokenContainer;
       
   149     int currentIndex;
       
   150 };
       
   151 
       
   152 QT_END_NAMESPACE
       
   153 
       
   154 #endif