---

yaml
---
r: 40766
b: refs/heads/dist-snap
c: 6439f2d
h: refs/heads/master
v: v3

Author: catamorphism

[refs]

@@ -7,7 +7,7 @@ refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
 refs/heads/try2: a810c03263670238bccd64cabb12a23a46e3a278
 refs/heads/incoming: e90142e536c150df0d9b4b2f11352152177509b5
-refs/heads/dist-snap: 35209cb9ec1ed743dfbee9854d6a53500e6bf0ff
+refs/heads/dist-snap: 6439f2d54645915ce57f4c229811719e8e498151
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596
 refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503
 refs/heads/try3: 9387340aab40a73e8424c48fd42f0c521a4875c0

branches/dist-snap/src/librustc/middle/typeck/check/alt.rs

@@ -95,7 +95,16 @@ fn check_pat_variant(pcx: pat_ctxt, pat: @ast::pat, path: @ast::path,
                 let vinfo =
                     ty::enum_variant_with_id(
                         tcx, v_def_ids.enm, v_def_ids.var);
-                vinfo.args.map(|t| { ty::subst(tcx, expected_substs, *t) })
+                let var_tpt = ty::lookup_item_type(tcx, v_def_ids.var);
+                vinfo.args.map(|t| {
+                    if var_tpt.bounds.len() == expected_substs.tps.len() {
+                        ty::subst(tcx, expected_substs, *t)
+                    }
+                    else {
+                        *t // In this case, an error was already signaled
+                           // anyway
+                    }
+                })
             };
 
             kind_name = "variant";

branches/dist-snap/src/test/compile-fail/issue-3680.rs

@@ -8,8 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// xfail-test
-fn f() {
+fn main() {
     match None {
             Err(_) => () //~ ERROR expected `core::result
     }