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move to higher-ranked
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Luv-Ray committed Mar 23, 2024
1 parent 3261438 commit 665e295
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Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
// regression test for issue #121649.

trait ToUnit<'a> {
type Unit;
}
Expand All @@ -9,7 +11,7 @@ type Assoc<'a, T> = <T as ToUnit<'a>>::Unit;
impl<T> Overlap<T> for T {}

impl<T> Overlap<for<'a> fn(&'a (), Assoc<'a, T>)> for T {}
//~^ ERROR 11:17: 11:49: the trait bound `for<'a> T: ToUnit<'a>` is not satisfied [E0277]
//~| ERROR 11:36: 11:48: the trait bound `for<'a> T: ToUnit<'a>` is not satisfied [E0277]
//~^ ERROR 13:17: 13:49: the trait bound `for<'a> T: ToUnit<'a>` is not satisfied [E0277]
//~| ERROR 13:36: 13:48: the trait bound `for<'a> T: ToUnit<'a>` is not satisfied [E0277]

fn main() {}
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: AliasTy { args: [?1t, '^0.Named(DefId(0:15 ~ structually_relate_aliases[de75]::{impl#1}::'a), "'a")], def_id: DefId(0:5 ~ structually_relate_aliases[de75]::ToUnit::Unit) }
WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: AliasTy { args: [?1t, !2_0.Named(DefId(0:15 ~ structually_relate_aliases[de75]::{impl#1}::'a), "'a")], def_id: DefId(0:5 ~ structually_relate_aliases[de75]::ToUnit::Unit) }
error[E0277]: the trait bound `for<'a> T: ToUnit<'a>` is not satisfied
--> $DIR/structually-relate-aliases.rs:11:36
--> $DIR/structually-relate-aliases.rs:13:36
|
LL | impl<T> Overlap<for<'a> fn(&'a (), Assoc<'a, T>)> for T {}
| ^^^^^^^^^^^^ the trait `for<'a> ToUnit<'a>` is not implemented for `T`
Expand All @@ -12,7 +12,7 @@ LL | impl<T: for<'a> ToUnit<'a>> Overlap<for<'a> fn(&'a (), Assoc<'a, T>)> for T
| ++++++++++++++++++++

error[E0277]: the trait bound `for<'a> T: ToUnit<'a>` is not satisfied
--> $DIR/structually-relate-aliases.rs:11:17
--> $DIR/structually-relate-aliases.rs:13:17
|
LL | impl<T> Overlap<for<'a> fn(&'a (), Assoc<'a, T>)> for T {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `for<'a> ToUnit<'a>` is not implemented for `T`
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