public object __cmp__(CodeContext context, object other)
{
OldInstance oiOther = other as OldInstance;
// CPython raises this if called directly, but not via cmp(os,ns) which still calls the user __cmp__
//if(!(oiOther is OldInstance))
// throw Ops.TypeError("instance.cmp(x,y) -> y must be an instance, got {0}", Ops.StringRepr(DynamicHelpers.GetPythonType(other)));
object res = InternalCompare("__cmp__", other);
if (res != NotImplementedType.Value)
{
return(res);
}
if (oiOther != null)
{
res = oiOther.InternalCompare("__cmp__", this);
if (res != NotImplementedType.Value)
{
return(((int)res) * -1);
}
}
return(NotImplementedType.Value);
}
private object CompareForwardReverse(object other, string forward, string reverse)
{
object res = InternalCompare(forward, other);
if (res != NotImplementedType.Value)
{
return(res);
}
OldInstance oi = other as OldInstance;
if (oi != null)
{
// comparison operators are reflexive
return(oi.InternalCompare(reverse, this));
}
return(NotImplementedType.Value);
}
