include/opencascade/Expr_UnaryExpression.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_UnaryExpression_HeaderFile
0018 #define _Expr_UnaryExpression_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 class Expr_UnaryExpression;
0028 DEFINE_STANDARD_HANDLE(Expr_UnaryExpression, Expr_GeneralExpression)
0029
0030 class Expr_UnaryExpression : public Expr_GeneralExpression
0031 {
0032
0033 public:
0034   //! Returns the operand used
0035   const Handle(Expr_GeneralExpression)& Operand() const;
0036
0037   //! Sets the operand used
0038   //! Raises InvalidOperand if <exp> contains <me>.
0039   Standard_EXPORT void SetOperand(const Handle(Expr_GeneralExpression)& exp);
0040
0041   //! Returns the number of sub-expressions contained
0042   //! in <me> ( >= 0)
0043   Standard_EXPORT Standard_Integer NbSubExpressions() const Standard_OVERRIDE;
0044
0045   //! Returns the <I>-th sub-expression of <me>.
0046   //! Raises OutOfRange if <I> > NbSubExpressions(me)
0047   Standard_EXPORT const Handle(Expr_GeneralExpression)& SubExpression(
0048     const Standard_Integer I) const Standard_OVERRIDE;
0049
0050   //! Does <me> contains NamedUnknown ?
0051   Standard_EXPORT Standard_Boolean ContainsUnknowns() const Standard_OVERRIDE;
0052
0053   //! Tests if <exp> is contained in <me>.
0054   Standard_EXPORT Standard_Boolean
0055     Contains(const Handle(Expr_GeneralExpression)& exp) const Standard_OVERRIDE;
0056
0057   //! Replaces all occurrences of <var> with <with> in <me>
0058   //! Raises InvalidOperand if <with> contains <me>.
0059   Standard_EXPORT void Replace(const Handle(Expr_NamedUnknown)&      var,
0060                                const Handle(Expr_GeneralExpression)& with) Standard_OVERRIDE;
0061
0062   //! Returns a GeneralExpression after replacement of
0063   //! NamedUnknowns by an associated expression, and after
0064   //! values computation.
0065   Standard_EXPORT Handle(Expr_GeneralExpression) Simplified() const Standard_OVERRIDE;
0066
0067   DEFINE_STANDARD_RTTIEXT(Expr_UnaryExpression, Expr_GeneralExpression)
0068
0069 protected:
0070   //! Sets the operand used during creation
0071   Standard_EXPORT void CreateOperand(const Handle(Expr_GeneralExpression)& exp);
0072
0073 private:
0074   Handle(Expr_GeneralExpression) myOperand;
0075 };
0076
0077 #include <Expr_UnaryExpression.lxx>
0078
0079 #endif // _Expr_UnaryExpression_HeaderFile