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/****************************************************************************
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**
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** Copyright (C) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Script Generator project on Qt Labs.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef CONTROL_H
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#define CONTROL_H
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#include "symbol.h"
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#include "smallobject.h"
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#include <QtCore/QHash>
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struct Declarator;
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struct Type;
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class Lexer;
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class Parser;
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struct Context
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{
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Context *parent;
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inline void bind(const NameSymbol *name, Type *type)
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{ symbol_table.insert(name, type); }
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inline Type *resolve(const NameSymbol *name) const
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{
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if (Type *type = symbol_table.value(name))
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return type;
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else if (parent)
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return parent->resolve(name);
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return 0;
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}
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typedef QHash<const NameSymbol*, Type*> symbol_table_t;
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symbol_table_t symbol_table;
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};
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class Control
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{
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public:
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class ErrorMessage
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{
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public:
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ErrorMessage ():
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_M_line (0),
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_M_column (0) {}
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inline int line () const { return _M_line; }
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inline void setLine (int line) { _M_line = line; }
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inline int column () const { return _M_column; }
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inline void setColumn (int column) { _M_column = column; }
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inline QString fileName () const { return _M_fileName; }
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inline void setFileName (const QString &fileName) { _M_fileName = fileName; }
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inline QString message () const { return _M_message; }
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inline void setMessage (const QString &message) { _M_message = message; }
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private:
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int _M_line;
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int _M_column;
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QString _M_fileName;
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QString _M_message;
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};
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Control();
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~Control();
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inline bool skipFunctionBody() const { return _M_skipFunctionBody; }
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inline void setSkipFunctionBody(bool skip) { _M_skipFunctionBody = skip; }
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Lexer *changeLexer(Lexer *lexer);
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Parser *changeParser(Parser *parser);
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Lexer *currentLexer() const { return _M_lexer; }
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Parser *currentParser() const { return _M_parser; }
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Context *current_context;
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inline Context *currentContext() const
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{ return current_context; }
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void pushContext();
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void popContext();
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Type *lookupType(const NameSymbol *name) const;
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void declare(const NameSymbol *name, Type *type);
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inline const NameSymbol *findOrInsertName(const char *data, size_t count)
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{ return name_table.findOrInsert(data, count); }
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void declareTypedef(const NameSymbol *name, Declarator *d);
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bool isTypedef(const NameSymbol *name) const;
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void reportError (const ErrorMessage &errmsg);
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QList<ErrorMessage> errorMessages () const;
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void clearErrorMessages ();
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private:
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NameTable name_table;
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QHash<const NameSymbol*, Declarator*> stl_typedef_table;
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bool _M_skipFunctionBody;
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Lexer *_M_lexer;
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Parser *_M_parser;
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QList<ErrorMessage> _M_error_messages;
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};
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#endif // CONTROL_H
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// kate: space-indent on; indent-width 2; replace-tabs on;
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