rust/tests/ui/traits/object-does-not-impl-trait.stderr

error[E0277]: the trait bound `Box<dyn Foo>: Foo` is not satisfied
  --> $DIR/object-does-not-impl-trait.rs:6:44
   |
LL | fn take_object(f: Box<dyn Foo>) { take_foo(f); }
   |                                   -------- ^ the trait `Foo` is not implemented for `Box<dyn Foo>`
   |                                   |
   |                                   required by a bound introduced by this call
   |
help: this trait has no implementations, consider adding one
  --> $DIR/object-does-not-impl-trait.rs:4:1
   |
LL | trait Foo {}
   | ^^^^^^^^^
note: required by a bound in `take_foo`
  --> $DIR/object-does-not-impl-trait.rs:5:15
   |
LL | fn take_foo<F:Foo>(f: F) {}
   |               ^^^ required by this bound in `take_foo`

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0277`.
pretty: trim paths of unique symbols If a symbol name can only be imported from one place for a type, and as long as it was not glob-imported anywhere in the current crate, we can trim its printed path and print only the name. This has wide implications on error messages with types, for example, shortening `std::vec::Vec` to just `Vec`, as long as there is no other `Vec` importable anywhere. This adds a new '-Z trim-diagnostic-paths=false' option to control this feature. On the good path, with no diagnosis printed, we should try to avoid issuing this query, so we need to prevent trimmed_def_paths query on several cases. This change also relies on a previous commit that differentiates between `Debug` and `Display` on various rustc types, where the latter is trimmed and presented to the user and the former is not. 2020-09-02 02:40:56 -05:00			error[E0277]: the trait bound `Box<dyn Foo>: Foo` is not satisfied
When possible point at argument causing item obligation failure 2019-09-15 23:58:20 -05:00			`--> $DIR/object-does-not-impl-trait.rs:6:44`
Moved compile-fail tests to ui tests. 2018-08-08 07:28:26 -05:00			`\|`
Update ui test suite to use dyn 2019-05-28 13:46:13 -05:00			`LL \| fn take_object(f: Box<dyn Foo>) { take_foo(f); }`
Point at call span that introduced obligation for the arg 2021-09-07 06:30:53 -05:00			\| -------- ^ the trait `Foo` is not implemented for `Box<dyn Foo>`
			`\| \|`
			`\| required by a bound introduced by this call`
Use note to point at bound introducing requirement 2021-07-31 11:26:55 -05:00			`\|`
Point out if a local trait has no implementations 2023-09-09 22:33:07 -05:00			`help: this trait has no implementations, consider adding one`
			`--> $DIR/object-does-not-impl-trait.rs:4:1`
			`\|`
			`LL \| trait Foo {}`
			`\| ^^^^^^^^^`
Use note to point at bound introducing requirement 2021-07-31 11:26:55 -05:00			note: required by a bound in `take_foo`
			`--> $DIR/object-does-not-impl-trait.rs:5:15`
			`\|`
			`LL \| fn take_foo<F:Foo>(f: F) {}`
			\| ^^^ required by this bound in `take_foo`
Moved compile-fail tests to ui tests. 2018-08-08 07:28:26 -05:00
Show number in error message even for one error Co-authored-by: Adrian <adrian.iosdev@gmail.com> 2023-11-21 09:44:16 -06:00			`error: aborting due to 1 previous error`
Moved compile-fail tests to ui tests. 2018-08-08 07:28:26 -05:00
			For more information about this error, try `rustc --explain E0277`.