public override bool Equals(Constraint c, VarNameMap vars)
{
if (!(c is Constant))
{
return(false);
}
return(ToString().Equals(c.ToString()));
}
public override bool Equals(Constraint c, VarNameMap vars)
{
if (!(c is Var))
{
return(false);
}
return(vars.AreVarsEqual(this, c as Var));
}
public override bool Equals(Constraint c, VarNameMap vars)
{
if (!(c is Relation))
{
return(false);
}
Relation r = c as Relation;
return(mLeft.Equals(r.mLeft, vars) && mRight.Equals(r.mRight, vars));
}
public override bool Equals(Constraint c, VarNameMap vars)
{
if (!(c is Vector))
{
return(false);
}
Vector v = c as Vector;
int n = v.GetCount();
if (n != GetCount())
{
return(false);
}
for (int i = 0; i < n; ++i)
{
Constraint c1 = GetConstraint(i);
Constraint c2 = v.GetConstraint(i);
if (!c1.Equals(c2, vars))
{
return(false);
}
}
return(true);
}
private bool CanRollupRelation(Constraint child)
{
VarNameMap map = new VarNameMap();
if (!(child is Relation))
{
return(false);
}
Relation childRel = child as Relation;
int n = GetLeft().GetCount();
if (n != childRel.GetLeft().GetCount())
{
return(false);
}
for (int i = 0; i < n; ++i)
{
Constraint tmp = GetLeft(i);
Constraint childTmp = childRel.GetLeft(i);
if (tmp != child)
{
if (!tmp.Equals(childTmp, map))
{
return(false);
}
}
else
{
if (!(childTmp is RecursiveRelation))
{
return(false);
}
}
}
n = GetRight().GetCount();
if (n != childRel.GetRight().GetCount())
{
return(false);
}
for (int i = 0; i < n; ++i)
{
Constraint tmp = GetRight(i);
Constraint childTmp = childRel.GetRight(i);
if (tmp != child)
{
if (!tmp.Equals(childTmp, map))
{
return(false);
}
}
else
{
if (!(childTmp is RecursiveRelation))
{
return(false);
}
}
}
return(true);
}
public override bool Equals(Constraint c, VarNameMap vars)
{
return(c is RecursiveRelation);
}
public abstract bool Equals(Constraint c, VarNameMap vars);