1 // Created on: 1991-01-10
2 // Created by: Arnaud BOUZY
3 // Copyright (c) 1991-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _Expr_PolyExpression_HeaderFile
18 #define _Expr_PolyExpression_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_Type.hxx>
23 #include <Expr_SequenceOfGeneralExpression.hxx>
24 #include <Expr_GeneralExpression.hxx>
25 #include <Standard_Integer.hxx>
26 #include <Standard_Boolean.hxx>
27 class Standard_OutOfRange;
28 class Standard_NumericError;
29 class Expr_InvalidOperand;
30 class Expr_GeneralExpression;
31 class Expr_NamedUnknown;
34 class Expr_PolyExpression;
35 DEFINE_STANDARD_HANDLE(Expr_PolyExpression, Expr_GeneralExpression)
38 class Expr_PolyExpression : public Expr_GeneralExpression
44 //! returns the number of operands contained in <me>
45 Standard_EXPORT Standard_Integer NbOperands() const;
47 //! Returns the <index>-th operand used in <me>.
48 //! An exception is raised if index is out of range
49 const Handle(Expr_GeneralExpression)& Operand (const Standard_Integer index) const;
51 //! Sets the <index>-th operand used in <me>.
52 //! An exception is raised if <index> is out of range
53 //! Raises InvalidOperand if <exp> contains <me>.
54 Standard_EXPORT void SetOperand (const Handle(Expr_GeneralExpression)& exp, const Standard_Integer index);
56 //! returns the number of sub-expressions contained
58 Standard_EXPORT Standard_Integer NbSubExpressions() const Standard_OVERRIDE;
60 //! Returns the sub-expression denoted by <I> in <me>
61 //! Raises OutOfRange if <I> > NbSubExpressions(me)
62 Standard_EXPORT const Handle(Expr_GeneralExpression)& SubExpression (const Standard_Integer I) const Standard_OVERRIDE;
64 //! Does <me> contains NamedUnknown ?
65 Standard_EXPORT Standard_Boolean ContainsUnknowns() const Standard_OVERRIDE;
67 //! Tests if <exp> is contained in <me>.
68 Standard_EXPORT Standard_Boolean Contains (const Handle(Expr_GeneralExpression)& exp) const Standard_OVERRIDE;
70 //! Replaces all occurences of <var> with <with> in <me>
71 //! Raises InvalidOperand if <with> contains <me>.
72 Standard_EXPORT void Replace (const Handle(Expr_NamedUnknown)& var, const Handle(Expr_GeneralExpression)& with) Standard_OVERRIDE;
74 //! Returns a GeneralExpression after replacement of
75 //! NamedUnknowns by an associated expression and after
76 //! values computation.
77 Standard_EXPORT Handle(Expr_GeneralExpression) Simplified() const Standard_OVERRIDE;
82 DEFINE_STANDARD_RTTIEXT(Expr_PolyExpression,Expr_GeneralExpression)
87 //! initialize an empty list of operands.
88 Standard_EXPORT Expr_PolyExpression();
90 //! Adds an operand to the list of <me>.
91 Standard_EXPORT void AddOperand (const Handle(Expr_GeneralExpression)& exp);
93 //! Remove the operand denoted by <index> from the list of
95 //! Raises exception if <index> is out of range or if
96 //! removing operand intend to leave only one or no
98 Standard_EXPORT void RemoveOperand (const Standard_Integer index);
105 Expr_SequenceOfGeneralExpression myOperands;
111 #include <Expr_PolyExpression.lxx>
117 #endif // _Expr_PolyExpression_HeaderFile