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//static const char* sccsid = "@(#)Expr_UnknownIterator.cxx 3.2 95/01/10"; // Do not delete this line. Used by sccs.
// Copyright: Matra-Datavision 1991
// File: Expr_UnknownIterator.cxx
// Created: Wed Sep 18 11:21:49 1991
// Author: Arnaud BOUZY
// <adn>
#include <Expr_UnknownIterator.ixx>
#include <Standard_NoMoreObject.hxx>
#include <Standard_NoSuchObject.hxx>
#include <Expr.hxx>
Expr_UnknownIterator::Expr_UnknownIterator (const Handle(Expr_GeneralExpression)& exp)
{
Perform(exp);
myCurrent = 1;
}
void Expr_UnknownIterator::Perform(const Handle(Expr_GeneralExpression)& exp)
{
if (exp->IsKind(STANDARD_TYPE(Expr_NamedUnknown))) {
Handle(Expr_NamedUnknown) varexp = Handle(Expr_NamedUnknown)::DownCast(exp);
if (!myMap.Contains(varexp)) {
myMap.Add(varexp);
}
}
Standard_Integer nbsub = exp->NbSubExpressions();
for (Standard_Integer i = 1; i <= nbsub ; i++) {
Perform(exp->SubExpression(i));
}
}
Standard_Boolean Expr_UnknownIterator::More() const
{
return (myCurrent <= myMap.Extent());
}
void Expr_UnknownIterator::Next ()
{
if (!More()) {
Standard_NoMoreObject::Raise();
}
myCurrent++;
}
Handle(Expr_NamedUnknown) Expr_UnknownIterator::Value () const
{
return myMap(myCurrent);
}
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