include/opencascade/Expr_BinaryExpression.hxx

0001 // Created on: 1991-01-10
0002 // Created by: Arnaud BOUZY
0003 // Copyright (c) 1991-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _Expr_BinaryExpression_HeaderFile
0018 #define _Expr_BinaryExpression_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_Type.hxx>
0022
0023 #include <Expr_GeneralExpression.hxx>
0024 #include <Standard_Integer.hxx>
0025 class Expr_NamedUnknown;
0026
0027
0028 class Expr_BinaryExpression;
0029 DEFINE_STANDARD_HANDLE(Expr_BinaryExpression, Expr_GeneralExpression)
0030
0031 //! Defines all binary expressions. The order of the two
0032 //! operands is significant.
0033 class Expr_BinaryExpression : public Expr_GeneralExpression
0034 {
0035
0036 public:
0037
0038
0039     const Handle(Expr_GeneralExpression)& FirstOperand() const;
0040
0041     const Handle(Expr_GeneralExpression)& SecondOperand() const;
0042
0043   //! Sets first operand of <me>
0044   //! Raises InvalidOperand if exp = me
0045   Standard_EXPORT void SetFirstOperand (const Handle(Expr_GeneralExpression)& exp);
0046
0047   //! Sets second operand of <me>
0048   //! Raises InvalidOperand if <exp> contains <me>.
0049   Standard_EXPORT void SetSecondOperand (const Handle(Expr_GeneralExpression)& exp);
0050
0051   //! returns the number of sub-expressions contained
0052   //! in <me> ( >= 0)
0053   Standard_EXPORT Standard_Integer NbSubExpressions() const Standard_OVERRIDE;
0054
0055   //! returns the <I>-th sub-expression of <me>
0056   //! raises OutOfRange if <I> > NbSubExpressions(me)
0057   Standard_EXPORT const Handle(Expr_GeneralExpression)& SubExpression (const Standard_Integer I) const Standard_OVERRIDE;
0058
0059   //! Does <me> contain NamedUnknown ?
0060   Standard_EXPORT Standard_Boolean ContainsUnknowns() const Standard_OVERRIDE;
0061
0062   //! Tests if <me> contains <exp>.
0063   Standard_EXPORT Standard_Boolean Contains (const Handle(Expr_GeneralExpression)& exp) const Standard_OVERRIDE;
0064
0065   //! Replaces all occurrences of <var> with <with> in <me>.
0066   //! Raises InvalidOperand if <with> contains <me>.
0067   Standard_EXPORT void Replace (const Handle(Expr_NamedUnknown)& var, const Handle(Expr_GeneralExpression)& with) Standard_OVERRIDE;
0068
0069   //! Returns a GeneralExpression after replacement of
0070   //! NamedUnknowns by an associated expression and after
0071   //! values computation.
0072   Standard_EXPORT Handle(Expr_GeneralExpression) Simplified() const Standard_OVERRIDE;
0073
0074
0075
0076
0077   DEFINE_STANDARD_RTTIEXT(Expr_BinaryExpression,Expr_GeneralExpression)
0078
0079 protected:
0080
0081
0082   //! Sets first operand of <me>
0083   Standard_EXPORT void CreateFirstOperand (const Handle(Expr_GeneralExpression)& exp);
0084
0085   //! Sets second operand of <me>
0086   //! Raises InvalidOperand if <exp> contains <me>.
0087   Standard_EXPORT void CreateSecondOperand (const Handle(Expr_GeneralExpression)& exp);
0088
0089
0090
0091 private:
0092
0093
0094   Handle(Expr_GeneralExpression) myFirstOperand;
0095   Handle(Expr_GeneralExpression) mySecondOperand;
0096
0097
0098 };
0099
0100
0101 #include <Expr_BinaryExpression.lxx>
0102
0103
0104
0105
0106
0107 #endif // _Expr_BinaryExpression_HeaderFile