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ObAstEval.h
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ObAstEval.h
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#ifndef OBASTEVAL_H
#define OBASTEVAL_H
/*
* Copyright 2019, 2020 Rochus Keller <mailto:[email protected]>
*
* This file is part of the Oberon parser/code model library.
*
* The following is the license that applies to this copy of the
* library. For a license to use the library under conditions
* other than those described here, please email to [email protected].
*
* GNU General Public License Usage
* This file may be used under the terms of the GNU General Public
* License (GPL) versions 2.0 or 3.0 as published by the Free Software
* Foundation and appearing in the file LICENSE.GPL included in
* the packaging of this file. Please review the following information
* to ensure GNU General Public Licensing requirements will be met:
* http://www.fsf.org/licensing/licenses/info/GPLv2.html and
* http://www.gnu.org/copyleft/gpl.html.
*/
#include <QObject>
#include <QVariant>
class QTextStream;
namespace Ob
{
namespace Ast
{
struct Expression;
struct Thing;
class Eval : public QObject
{
public:
static void render( QTextStream&, Thing* );
static QVariant evalConstExpr( Expression*, QString* = 0 );
static QVariant NEG( const QVariant&, QString* err = 0 );
static QVariant NOT( const QVariant&, QString* err = 0 );
static QVariant ADD( const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant SUB( const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant FDIV( const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant MUL( const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant DIV( const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant MOD( const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant AND( const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant OR( const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant EQ( const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant NEQ( const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant LE( const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant LEQ( const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant GT( const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant GEQ( const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant IN( const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant binOp( quint8 op, const QVariant& lhs, const QVariant& rhs, QString* err = 0 );
static QVariant unOp( quint8 op, const QVariant& rhs, QString* err = 0 );
private:
Eval(){}
};
}
}
#endif // OBASTEVAL_H