rust/tests/ui/methods/issues/issue-61525.stderr

error[E0277]: the size for values of type `dyn ToString` cannot be known at compilation time
  --> $DIR/issue-61525.rs:14:19
   |
LL |         1.query::<dyn ToString>("")
   |           -----   ^^^^^^^^^^^^ doesn't have a size known at compile-time
   |           |
   |           required by a bound introduced by this call
   |
   = help: the trait `Sized` is not implemented for `dyn ToString`
note: required by an implicit `Sized` bound in `Example::query`
  --> $DIR/issue-61525.rs:2:14
   |
LL |     fn query<Q>(self, q: Q);
   |              ^ required by the implicit `Sized` requirement on this type parameter in `Example::query`
help: consider relaxing the implicit `Sized` restriction
   |
LL |     fn query<Q: ?Sized>(self, q: Q);
   |               ++++++++

error[E0308]: mismatched types
  --> $DIR/issue-61525.rs:14:33
   |
LL |         1.query::<dyn ToString>("")
   |           --------------------- ^^ expected `dyn ToString`, found `&str`
   |           |
   |           arguments to this method are incorrect
   |
   = note: expected trait object `dyn ToString`
                 found reference `&'static str`
   = help: `&'static str` implements `ToString` so you could box the found value and coerce it to the trait object `Box<dyn ToString>`, you will have to change the expected type as well
note: method defined here
  --> $DIR/issue-61525.rs:2:8
   |
LL |     fn query<Q>(self, q: Q);
   |        ^^^^^          -

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0277, E0308.
For more information about an error, try `rustc --explain E0277`.
Use fake substs to check for `Self: Sized` predicates on method receivers 2022-07-11 05:20:37 +00:00			error[E0277]: the size for values of type `dyn ToString` cannot be known at compilation time
More accurately point at arguments 2023-08-26 19:25:46 +00:00			`--> $DIR/issue-61525.rs:14:19`
Use fake substs to check for `Self: Sized` predicates on method receivers 2022-07-11 05:20:37 +00:00			`\|`
			`LL \| 1.query::<dyn ToString>("")`
More accurately point at arguments 2023-08-26 19:25:46 +00:00			`\| ----- ^^^^^^^^^^^^ doesn't have a size known at compile-time`
Use fake substs to check for `Self: Sized` predicates on method receivers 2022-07-11 05:20:37 +00:00			`\| \|`
			`\| required by a bound introduced by this call`
			`\|`
			= help: the trait `Sized` is not implemented for `dyn ToString`
On E0277 be clearer about implicit `Sized` bounds on type params and assoc types ``` error[E0277]: the size for values of type `[i32]` cannot be known at compilation time --> f100.rs:2:33 \| 2 \| let _ = std::mem::size_of::<[i32]>(); \| ^^^^^ doesn't have a size known at compile-time \| = help: the trait `Sized` is not implemented for `[i32]` note: required by an implicit `Sized` bound in `std::mem::size_of` --> /home/gh-estebank/rust/library/core/src/mem/mod.rs:312:22 \| 312 \| pub const fn size_of<T>() -> usize { \| ^ required by the implicit `Sized` requirement on this bound in `size_of` ``` Fix #120178. 2024-01-24 21:29:15 +00:00			note: required by an implicit `Sized` bound in `Example::query`
Use fake substs to check for `Self: Sized` predicates on method receivers 2022-07-11 05:20:37 +00:00			`--> $DIR/issue-61525.rs:2:14`
			`\|`
			`LL \| fn query<Q>(self, q: Q);`
review comment: change wording 2024-01-30 19:47:45 +00:00			\| ^ required by the implicit `Sized` requirement on this type parameter in `Example::query`
Use fake substs to check for `Self: Sized` predicates on method receivers 2022-07-11 05:20:37 +00:00			help: consider relaxing the implicit `Sized` restriction
			`\|`
			`LL \| fn query<Q: ?Sized>(self, q: Q);`
			`\| ++++++++`

			`error[E0308]: mismatched types`
			`--> $DIR/issue-61525.rs:14:33`
			`\|`
			`LL \| 1.query::<dyn ToString>("")`
Modify primary span label for E0308 The previous output was unintuitive to users. 2023-01-02 18:00:33 -08:00			\| --------------------- ^^ expected `dyn ToString`, found `&str`
Use fake substs to check for `Self: Sized` predicates on method receivers 2022-07-11 05:20:37 +00:00			`\| \|`
Tweak wording of fn call with wrong number of args 2023-01-05 03:02:10 +00:00			`\| arguments to this method are incorrect`
Use fake substs to check for `Self: Sized` predicates on method receivers 2022-07-11 05:20:37 +00:00			`\|`
			= note: expected trait object `dyn ToString`
			found reference `&'static str`
On E0308 involving `dyn Trait`, mention trait objects When encountering a type mismatch error involving `dyn Trait`, mention the existence of boxed trait objects if the other type involved implements `Trait`. Partially addresses #102629. 2024-01-24 16:30:37 +00:00			= help: `&'static str` implements `ToString` so you could box the found value and coerce it to the trait object `Box<dyn ToString>`, you will have to change the expected type as well
diagnostics: update test cases to refer to assoc fn with `self` as method 2023-02-21 14:11:08 -07:00			`note: method defined here`
Use fake substs to check for `Self: Sized` predicates on method receivers 2022-07-11 05:20:37 +00:00			`--> $DIR/issue-61525.rs:2:8`
			`\|`
			`LL \| fn query<Q>(self, q: Q);`
Check for generic parameter mismatches on trait functions. 2025-02-03 11:19:17 -05:00			`\| ^^^^^ -`
Use fake substs to check for `Self: Sized` predicates on method receivers 2022-07-11 05:20:37 +00:00
			`error: aborting due to 2 previous errors`

			`Some errors have detailed explanations: E0277, E0308.`
			For more information about an error, try `rustc --explain E0277`.