1 // Created on: 1991-09-18
2 // Created by: Arnaud BOUZY
3 // Copyright (c) 1991-1999 Matra Datavision
4 // Copyright (c) 1999-2012 OPEN CASCADE SAS
6 // The content of this file is subject to the Open CASCADE Technology Public
7 // License Version 6.5 (the "License"). You may not use the content of this file
8 // except in compliance with the License. Please obtain a copy of the License
9 // at http://www.opencascade.org and read it completely before using this file.
11 // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
12 // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
14 // The Original Code and all software distributed under the License is
15 // distributed on an "AS IS" basis, without warranty of any kind, and the
16 // Initial Developer hereby disclaims all such warranties, including without
17 // limitation, any warranties of merchantability, fitness for a particular
18 // purpose or non-infringement. Please see the License for the specific terms
19 // and conditions governing the rights and limitations under the License.
22 #include <Expr_UnknownIterator.ixx>
23 #include <Standard_NoMoreObject.hxx>
24 #include <Standard_NoSuchObject.hxx>
27 Expr_UnknownIterator::Expr_UnknownIterator (const Handle(Expr_GeneralExpression)& exp)
33 void Expr_UnknownIterator::Perform(const Handle(Expr_GeneralExpression)& exp)
35 if (exp->IsKind(STANDARD_TYPE(Expr_NamedUnknown))) {
36 Handle(Expr_NamedUnknown) varexp = Handle(Expr_NamedUnknown)::DownCast(exp);
37 if (!myMap.Contains(varexp)) {
41 Standard_Integer nbsub = exp->NbSubExpressions();
42 for (Standard_Integer i = 1; i <= nbsub ; i++) {
43 Perform(exp->SubExpression(i));
47 Standard_Boolean Expr_UnknownIterator::More() const
49 return (myCurrent <= myMap.Extent());
52 void Expr_UnknownIterator::Next ()
55 Standard_NoMoreObject::Raise();
60 Handle(Expr_NamedUnknown) Expr_UnknownIterator::Value () const
62 return myMap(myCurrent);