diff options
| -rw-r--r-- | src/comp/middle/ty.rs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/comp/middle/ty.rs b/src/comp/middle/ty.rs index 96479c40..d57b8071 100644 --- a/src/comp/middle/ty.rs +++ b/src/comp/middle/ty.rs @@ -1877,6 +1877,9 @@ mod Unify { // TODO: occurs check, to make sure we don't loop forever when // unifying e.g. 'a and option['a] + // Fast path. + if (eq_ty(expected, actual)) { ret ures_ok(expected); } + alt (actual.struct) { // If the RHS is a variable type, then just do the appropriate // binding. |