Mercurial > urweb

view tests/pvar.ur @ 1639:6c00d8af6239

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add a new scoping check for unification variables, to fix a type inference bug
author Adam Chlipala <adam@chlipala.net>
date Sun, 18 Dec 2011 11:29:13 -0500
parents 5137b0537c92
children
line wrap: on
line source
val v1 : variant [A = int, B = float] = make [#A] 1
val v2 : variant [A = int, B = float] = make [#B] 2.3

fun main () = return (match v1 {A = fn n => <xml>A: {[n]}</xml>,
                                B = fn n => <xml>B: {[n]}</xml>})