From 24c9d7e5f85aa9324dbb2313101cf4c0d9826dc3 Mon Sep 17 00:00:00 2001
From: Tim Chevalier <chevalier@alum.wellesley.edu>
Date: Wed, 1 Jun 2011 18:15:12 -0700
Subject: [PATCH] Improve type error message for non-constructor in pattern

---
 src/comp/middle/typeck.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/comp/middle/typeck.rs b/src/comp/middle/typeck.rs
index 924be466fae..d3786d8aad4 100644
--- a/src/comp/middle/typeck.rs
+++ b/src/comp/middle/typeck.rs
@@ -1128,8 +1128,8 @@ mod pushdown {
                 alt (struct(scx.fcx.ccx.tcx, expected)) {
                     case (ty::ty_tag(_, ?tps)) { tag_tps = tps; }
                     case (_) {
-                        log_err "tag pattern type not actually a tag?!";
-                        fail;
+                        scx.fcx.ccx.tcx.sess.span_err(pat.span,
+                          "Non-constructor used in a pattern");
                     }
                 }