In article [EMAIL PROTECTED],
Ben Rudiak-Gould [EMAIL PROTECTED] wrote:
And it would be nice to be able to pass around values of type
(exists t. Interface t = t), which behave just like OOP interface
pointers.
A value of type (exists t. Interface t = t) consists of two values,
one of type
On Mon, 16 Feb 2004, Ashley Yakeley wrote:
A value of type (exists t. Interface t = t) consists of two values,
one of type t, and one dictionary value. For that reason a data type
is used to represent this (and a newtype type cannot be).
This is an implementation detail, though. It's like a
