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//static const char* sccsid = "@(#)Expr_BinaryExpression.cxx 3.2 95/01/10"; // Do not delete this line. Used by sccs.
// Copyright: Matra-Datavision 1991
// File: Expr_BinaryExpression.cxx
// Created: Fri Apr 12 10:41:21 1991
// Author: Arnaud BOUZY
// <adn>
#include <Expr_BinaryExpression.ixx>
#include <Expr_NamedUnknown.hxx>
#include <Expr_InvalidOperand.hxx>
#include <Standard_OutOfRange.hxx>
void Expr_BinaryExpression::SetFirstOperand (const Handle(Expr_GeneralExpression)& exp)
{
Handle(Expr_BinaryExpression) me;
me = this;
if (exp == me) {
Expr_InvalidOperand::Raise();
}
if (exp->Contains(me)) {
Expr_InvalidOperand::Raise();
}
myFirstOperand = exp;
}
void Expr_BinaryExpression::SetSecondOperand (const Handle(Expr_GeneralExpression)& exp)
{
Handle(Expr_BinaryExpression) me;
me = this;
if (exp == me) {
Expr_InvalidOperand::Raise();
}
if (exp->Contains(me)) {
Expr_InvalidOperand::Raise();
}
mySecondOperand = exp;
}
void Expr_BinaryExpression::CreateFirstOperand (const Handle(Expr_GeneralExpression)& exp)
{
myFirstOperand = exp;
}
void Expr_BinaryExpression::CreateSecondOperand (const Handle(Expr_GeneralExpression)& exp)
{
mySecondOperand = exp;
}
Standard_Integer Expr_BinaryExpression::NbSubExpressions () const
{
return 2;
}
const Handle(Expr_GeneralExpression)& Expr_BinaryExpression::SubExpression (const Standard_Integer I) const
{
if (I == 1) {
return myFirstOperand;
}
else {
if (I == 2) {
return mySecondOperand;
}
else {
Standard_OutOfRange::Raise();
}
}
#if defined (WNT) || !defined (DEB)
return *( ( Handle_Expr_GeneralExpression* )NULL );
#endif // WNT || !DEB
}
Standard_Boolean Expr_BinaryExpression::ContainsUnknowns () const
{
if (myFirstOperand->IsKind(STANDARD_TYPE(Expr_NamedUnknown))) {
return Standard_True;
}
if (mySecondOperand->IsKind(STANDARD_TYPE(Expr_NamedUnknown))) {
return Standard_True;
}
if (myFirstOperand->ContainsUnknowns()) {
return Standard_True;
}
if (mySecondOperand->ContainsUnknowns()) {
return Standard_True;
}
return Standard_False;
}
Standard_Boolean Expr_BinaryExpression::Contains (const Handle(Expr_GeneralExpression)& exp) const
{
if (myFirstOperand == exp) {
return Standard_True;
}
if (mySecondOperand == exp) {
return Standard_True;
}
if (myFirstOperand->Contains(exp)) {
return Standard_True;
}
if (mySecondOperand->Contains(exp)) {
return Standard_True;
}
return Standard_False;
}
void Expr_BinaryExpression::Replace (const Handle(Expr_NamedUnknown)& var, const Handle(Expr_GeneralExpression)& with)
{
if (myFirstOperand == var) {
SetFirstOperand(with);
}
else {
if (myFirstOperand->Contains(var)) {
myFirstOperand->Replace(var,with);
}
}
if (mySecondOperand == var) {
SetSecondOperand(with);
}
else {
if (mySecondOperand->Contains(var)) {
mySecondOperand->Replace(var,with);
}
}
}
Handle(Expr_GeneralExpression) Expr_BinaryExpression::Simplified() const
{
Handle(Expr_BinaryExpression) cop = Handle(Expr_BinaryExpression)::DownCast(Copy());
Handle(Expr_GeneralExpression) op1 = cop->FirstOperand();
Handle(Expr_GeneralExpression) op2 = cop->SecondOperand();
cop->SetFirstOperand(op1->Simplified());
cop->SetSecondOperand(op2->Simplified());
return cop->ShallowSimplified();
}
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