src/script/parser/qscriptparser_p.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 QtScript module 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 // This file was generated by qlalr - DO NOT EDIT!
       
    43 
       
    44 //
       
    45 //  W A R N I N G
       
    46 //  -------------
       
    47 //
       
    48 // This file is not part of the Qt API.  It exists purely as an
       
    49 // implementation detail.  This header file may change from version to
       
    50 // version without notice, or even be removed.
       
    51 //
       
    52 // We mean it.
       
    53 //
       
    54 
       
    55 //
       
    56 // This file is automatically generated from qscript.g.
       
    57 // Changes will be lost.
       
    58 //
       
    59 
       
    60 #ifndef QSCRIPTPARSER_P_H
       
    61 #define QSCRIPTPARSER_P_H
       
    62 
       
    63 #include "qscriptgrammar_p.h"
       
    64 
       
    65 #include "qscriptastfwd_p.h"
       
    66 
       
    67 QT_BEGIN_NAMESPACE
       
    68 
       
    69 class QString;
       
    70 class QScriptEnginePrivate;
       
    71 class QScriptNameIdImpl;
       
    72 
       
    73 class QScriptParser: protected QScriptGrammar
       
    74 {
       
    75 public:
       
    76     union Value {
       
    77       int ival;
       
    78       double dval;
       
    79       QScriptNameIdImpl *sval;
       
    80       QScript::AST::ArgumentList *ArgumentList;
       
    81       QScript::AST::CaseBlock *CaseBlock;
       
    82       QScript::AST::CaseClause *CaseClause;
       
    83       QScript::AST::CaseClauses *CaseClauses;
       
    84       QScript::AST::Catch *Catch;
       
    85       QScript::AST::DefaultClause *DefaultClause;
       
    86       QScript::AST::ElementList *ElementList;
       
    87       QScript::AST::Elision *Elision;
       
    88       QScript::AST::ExpressionNode *Expression;
       
    89       QScript::AST::Finally *Finally;
       
    90       QScript::AST::FormalParameterList *FormalParameterList;
       
    91       QScript::AST::FunctionBody *FunctionBody;
       
    92       QScript::AST::FunctionDeclaration *FunctionDeclaration;
       
    93       QScript::AST::Node *Node;
       
    94       QScript::AST::PropertyName *PropertyName;
       
    95       QScript::AST::PropertyNameAndValueList *PropertyNameAndValueList;
       
    96       QScript::AST::SourceElement *SourceElement;
       
    97       QScript::AST::SourceElements *SourceElements;
       
    98       QScript::AST::Statement *Statement;
       
    99       QScript::AST::StatementList *StatementList;
       
   100       QScript::AST::VariableDeclaration *VariableDeclaration;
       
   101       QScript::AST::VariableDeclarationList *VariableDeclarationList;
       
   102     };
       
   103 
       
   104     struct Location {
       
   105       int startLine;
       
   106       int startColumn;
       
   107       int endLine;
       
   108       int endColumn;
       
   109     };
       
   110 
       
   111 public:
       
   112     QScriptParser();
       
   113     ~QScriptParser();
       
   114 
       
   115     bool parse(QScriptEnginePrivate *driver);
       
   116 
       
   117     inline QString errorMessage() const
       
   118     { return error_message; }
       
   119     inline int errorLineNumber() const
       
   120     { return error_lineno; }
       
   121     inline int errorColumnNumber() const
       
   122     { return error_column; }
       
   123 
       
   124 protected:
       
   125     inline void reallocateStack();
       
   126 
       
   127     inline Value &sym(int index)
       
   128     { return sym_stack [tos + index - 1]; }
       
   129 
       
   130     inline Location &loc(int index)
       
   131     { return location_stack [tos + index - 2]; }
       
   132 
       
   133 protected:
       
   134     int tos;
       
   135     int stack_size;
       
   136     Value *sym_stack;
       
   137     int *state_stack;
       
   138     Location *location_stack;
       
   139     QString error_message;
       
   140     int error_lineno;
       
   141     int error_column;
       
   142 };
       
   143 
       
   144 inline void QScriptParser::reallocateStack()
       
   145 {
       
   146     if (! stack_size)
       
   147         stack_size = 128;
       
   148     else
       
   149         stack_size <<= 1;
       
   150 
       
   151     sym_stack = reinterpret_cast<Value*> (qRealloc(sym_stack, stack_size * sizeof(Value)));
       
   152     state_stack = reinterpret_cast<int*> (qRealloc(state_stack, stack_size * sizeof(int)));
       
   153     location_stack = reinterpret_cast<Location*> (qRealloc(location_stack, stack_size * sizeof(Location)));
       
   154 }
       
   155 
       
   156 
       
   157 #define Q_SCRIPT_REGEXPLITERAL_RULE1 7
       
   158 
       
   159 #define Q_SCRIPT_REGEXPLITERAL_RULE2 8
       
   160 
       
   161 QT_END_NAMESPACE
       
   162 
       
   163 #endif // QSCRIPTPARSER_P_H