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/****************************************************************************
**
** Copyright (C) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Script Generator project on Qt Labs.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef CONTROL_H
#define CONTROL_H
#include "symbol.h"
#include "smallobject.h"
#include <QtCore/QHash>
struct Declarator;
struct Type;
class Lexer;
class Parser;
struct Context
{
Context *parent;
inline void bind(const NameSymbol *name, Type *type)
{ symbol_table.insert(name, type); }
inline Type *resolve(const NameSymbol *name) const
{
if (Type *type = symbol_table.value(name))
return type;
else if (parent)
return parent->resolve(name);
return 0;
}
typedef QHash<const NameSymbol*, Type*> symbol_table_t;
symbol_table_t symbol_table;
};
class Control
{
public:
class ErrorMessage
{
public:
ErrorMessage ():
_M_line (0),
_M_column (0) {}
inline int line () const { return _M_line; }
inline void setLine (int line) { _M_line = line; }
inline int column () const { return _M_column; }
inline void setColumn (int column) { _M_column = column; }
inline QString fileName () const { return _M_fileName; }
inline void setFileName (const QString &fileName) { _M_fileName = fileName; }
inline QString message () const { return _M_message; }
inline void setMessage (const QString &message) { _M_message = message; }
private:
int _M_line;
int _M_column;
QString _M_fileName;
QString _M_message;
};
Control();
~Control();
inline bool skipFunctionBody() const { return _M_skipFunctionBody; }
inline void setSkipFunctionBody(bool skip) { _M_skipFunctionBody = skip; }
Lexer *changeLexer(Lexer *lexer);
Parser *changeParser(Parser *parser);
Lexer *currentLexer() const { return _M_lexer; }
Parser *currentParser() const { return _M_parser; }
Context *current_context;
inline Context *currentContext() const
{ return current_context; }
void pushContext();
void popContext();
Type *lookupType(const NameSymbol *name) const;
void declare(const NameSymbol *name, Type *type);
inline const NameSymbol *findOrInsertName(const char *data, size_t count)
{ return name_table.findOrInsert(data, count); }
void declareTypedef(const NameSymbol *name, Declarator *d);
bool isTypedef(const NameSymbol *name) const;
void reportError (const ErrorMessage &errmsg);
QList<ErrorMessage> errorMessages () const;
void clearErrorMessages ();
private:
NameTable name_table;
QHash<const NameSymbol*, Declarator*> stl_typedef_table;
bool _M_skipFunctionBody;
Lexer *_M_lexer;
Parser *_M_parser;
QList<ErrorMessage> _M_error_messages;
};
#endif // CONTROL_H
// kate: space-indent on; indent-width 2; replace-tabs on;
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