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Point at appropriate type parameter in more trait bound errors

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This commit is contained in:
Esteban Küber 2023-08-24 19:23:06 +00:00
parent ac89e1615d
commit 120c24dab5
18 changed files with 85 additions and 58 deletions
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12
tests/ui/function-pointer/unsized-ret.stderr
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@ -1,10 +1,8 @@
error[E0277]: the size for values of type `str` cannot be known at compilation time
--> $DIR/unsized-ret.rs:10:27
--> $DIR/unsized-ret.rs:10:11
|
LL | foo::<fn() -> str, _>(None, ());
| --------------------- ^^^^ doesn't have a size known at compile-time
| |
| required by a bound introduced by this call
| ^^^^^^^^^^^ doesn't have a size known at compile-time
|
= help: within `fn() -> str`, the trait `Sized` is not implemented for `str`
= note: required because it appears within the type `fn() -> str`
@ -15,12 +13,10 @@ LL | fn foo<F: Fn<T>, T:std::marker::Tuple>(f: Option<F>, t: T) {
| ^^^^^ required by this bound in `foo`
error[E0277]: the size for values of type `(dyn std::fmt::Display + 'a)` cannot be known at compilation time
--> $DIR/unsized-ret.rs:13:66
--> $DIR/unsized-ret.rs:13:11
|
LL | foo::<for<'a> fn(&'a ()) -> (dyn std::fmt::Display + 'a), _>(None, (&(),));
| ------------------------------------------------------------ ^^^^ doesn't have a size known at compile-time
| |
| required by a bound introduced by this call
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
|
= help: within `for<'a> fn(&'a ()) -> (dyn std::fmt::Display + 'a)`, the trait `for<'a> Sized` is not implemented for `(dyn std::fmt::Display + 'a)`
= note: required because it appears within the type `fn(&()) -> dyn Display`