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Fix impl Trait suggestion

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This commit is contained in:
Esteban Küber 2018-05-24 10:01:13 -07:00
parent 50eefc0d77
commit f36c643d4f
2 changed files with 3 additions and 7 deletions
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2
src/librustc_typeck/check/compare_method.rs
View file

@ -777,7 +777,7 @@ fn compare_synthetic_generics<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
let new_generics_span = tcx let new_generics_span = tcx
.sess .sess
.codemap() .codemap()
.generate_fn_name_span(impl_m.span)? .generate_fn_name_span(impl_span)?
.shrink_to_hi(); .shrink_to_hi();
// in case there are generics, just replace them // in case there are generics, just replace them
let generics_span = impl_m let generics_span = impl_m

8
src/test/ui/impl-trait/impl-generic-mismatch.stderr
View file

@ -21,12 +21,8 @@ LL | fn bar(&self, _: &impl Debug) { }
| ^^^^^^^^^^ expected generic parameter, found `impl Trait` | ^^^^^^^^^^ expected generic parameter, found `impl Trait`
help: try changing the `impl Trait` argument to a generic parameter help: try changing the `impl Trait` argument to a generic parameter
| |
LL | fn bar<U: Debug><U: Debug>(&self, _: &U); LL | fn bar<U: Debug>(&self, _: &U) { }
LL | } | ^^^^^^^^^^ ^
LL |
LL | impl Bar for () {
LL | fn bar(&self, _: &U) { }
|
error[E0643]: method `hash` has incompatible signature for trait error[E0643]: method `hash` has incompatible signature for trait
--> $DIR/impl-generic-mismatch.rs:38:33 --> $DIR/impl-generic-mismatch.rs:38:33