internal AndTypeConstraint(TypeConstraint left, TypeConstraint right)
{
Throw.IfArgumentNull(left, "left");
Throw.IfArgumentNull(right, "right");
leftField = left;
rightField = right;
}
public static TypeConstraint Or(TypeConstraint left, TypeConstraint right)
{
if (left == null)
{
return(right);
}
if (right == null)
{
return(left);
}
return(new OrTypeConstraint(left, right));
}
internal NotTypeConstraint(TypeConstraint filter)
{
filterField = filter;
}
public static TypeConstraint Not(TypeConstraint filter)
{
Throw.IfArgumentNull(filter, "filter");
return(new NotTypeConstraint(filter));
}
public TypeConstraint And(TypeConstraint filter)
{
Throw.IfArgumentNull(filter, "filter");
return(And(this, filter));
}
internal OrTypeConstraint(TypeConstraint left, TypeConstraint right)
{
leftField = left;
rightField = right;
}
