util/src/script/parser/qscriptparser_p.h
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     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 QtScript module of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL-ONLY$
       
    10 ** GNU Lesser General Public License Usage
       
    11 ** This file may be used under the terms of the GNU Lesser
       
    12 ** General Public License version 2.1 as published by the Free Software
       
    13 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    14 ** packaging of this file.  Please review the following information to
       
    15 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    16 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    17 **
       
    18 ** If you have questions regarding the use of this file, please contact
       
    19 ** Nokia at qt-info@nokia.com.
       
    20 ** $QT_END_LICENSE$
       
    21 **
       
    22 ****************************************************************************/
       
    23 
       
    24 // This file was generated by qlalr - DO NOT EDIT!
       
    25 
       
    26 
       
    27 //
       
    28 //  W A R N I N G
       
    29 //  -------------
       
    30 //
       
    31 // This file is not part of the Qt API.  It exists purely as an
       
    32 // implementation detail.  This header file may change from version to
       
    33 // version without notice, or even be removed.
       
    34 //
       
    35 // We mean it.
       
    36 //
       
    37 
       
    38 //
       
    39 // This file is automatically generated from qscript.g.
       
    40 // Changes will be lost.
       
    41 //
       
    42 
       
    43 #ifndef QSCRIPTPARSER_P_H
       
    44 #define QSCRIPTPARSER_P_H
       
    45 
       
    46 #include "qscriptgrammar_p.h"
       
    47 
       
    48 #include "qscriptastfwd_p.h"
       
    49 
       
    50 QT_BEGIN_NAMESPACE
       
    51 
       
    52 class QString;
       
    53 class QScriptEnginePrivate;
       
    54 class QScriptNameIdImpl;
       
    55 
       
    56 class QScriptParser: protected QScriptGrammar
       
    57 {
       
    58 public:
       
    59     union Value {
       
    60       int ival;
       
    61       double dval;
       
    62       QScriptNameIdImpl *sval;
       
    63       QScript::AST::ArgumentList *ArgumentList;
       
    64       QScript::AST::CaseBlock *CaseBlock;
       
    65       QScript::AST::CaseClause *CaseClause;
       
    66       QScript::AST::CaseClauses *CaseClauses;
       
    67       QScript::AST::Catch *Catch;
       
    68       QScript::AST::DefaultClause *DefaultClause;
       
    69       QScript::AST::ElementList *ElementList;
       
    70       QScript::AST::Elision *Elision;
       
    71       QScript::AST::ExpressionNode *Expression;
       
    72       QScript::AST::Finally *Finally;
       
    73       QScript::AST::FormalParameterList *FormalParameterList;
       
    74       QScript::AST::FunctionBody *FunctionBody;
       
    75       QScript::AST::FunctionDeclaration *FunctionDeclaration;
       
    76       QScript::AST::Node *Node;
       
    77       QScript::AST::PropertyName *PropertyName;
       
    78       QScript::AST::PropertyNameAndValueList *PropertyNameAndValueList;
       
    79       QScript::AST::SourceElement *SourceElement;
       
    80       QScript::AST::SourceElements *SourceElements;
       
    81       QScript::AST::Statement *Statement;
       
    82       QScript::AST::StatementList *StatementList;
       
    83       QScript::AST::VariableDeclaration *VariableDeclaration;
       
    84       QScript::AST::VariableDeclarationList *VariableDeclarationList;
       
    85     };
       
    86 
       
    87     struct Location {
       
    88       int startLine;
       
    89       int startColumn;
       
    90       int endLine;
       
    91       int endColumn;
       
    92     };
       
    93 
       
    94 public:
       
    95     QScriptParser();
       
    96     ~QScriptParser();
       
    97 
       
    98     bool parse(QScriptEnginePrivate *driver);
       
    99 
       
   100     inline QString errorMessage() const
       
   101     { return error_message; }
       
   102     inline int errorLineNumber() const
       
   103     { return error_lineno; }
       
   104     inline int errorColumnNumber() const
       
   105     { return error_column; }
       
   106 
       
   107 protected:
       
   108     inline void reallocateStack();
       
   109 
       
   110     inline Value &sym(int index)
       
   111     { return sym_stack [tos + index - 1]; }
       
   112 
       
   113     inline Location &loc(int index)
       
   114     { return location_stack [tos + index - 2]; }
       
   115 
       
   116 protected:
       
   117     int tos;
       
   118     int stack_size;
       
   119     Value *sym_stack;
       
   120     int *state_stack;
       
   121     Location *location_stack;
       
   122     QString error_message;
       
   123     int error_lineno;
       
   124     int error_column;
       
   125 };
       
   126 
       
   127 inline void QScriptParser::reallocateStack()
       
   128 {
       
   129     if (! stack_size)
       
   130         stack_size = 128;
       
   131     else
       
   132         stack_size <<= 1;
       
   133 
       
   134     sym_stack = reinterpret_cast<Value*> (qRealloc(sym_stack, stack_size * sizeof(Value)));
       
   135     state_stack = reinterpret_cast<int*> (qRealloc(state_stack, stack_size * sizeof(int)));
       
   136     location_stack = reinterpret_cast<Location*> (qRealloc(location_stack, stack_size * sizeof(Location)));
       
   137 }
       
   138 
       
   139 
       
   140 #define Q_SCRIPT_REGEXPLITERAL_RULE1 7
       
   141 
       
   142 #define Q_SCRIPT_REGEXPLITERAL_RULE2 8
       
   143 
       
   144 QT_END_NAMESPACE
       
   145 
       
   146 #endif // QSCRIPTPARSER_P_H