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rust/src/test/ui/on-unimplemented/slice-index.stderr

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Make `str` indexing generic on `SliceIndex`.
2019-01-14 07:10:45 -06:00
error[E0277]: the type `[i32]` cannot be indexed by `i32`
suggest dereferencing index when trying to use a reference of usize as index
2022-07-24 08:26:44 -05:00
--> $DIR/slice-index.rs:8:7
`rustc_on_unimplemented` supports referring to trait Add support to `rustc_on_unimplemented` to reference the full path of the annotated trait. For the following code: ```rust pub mod Bar { #[rustc_on_unimplemented = "test error `{Self}` with `{Bar}` `{Baz}` `{Quux}` in `{Foo}`"] pub trait Foo<Bar, Baz, Quux> {} } ``` the error message will be: ``` test error `std::string::String` with `u8` `_` `u32` in `Bar::Foo` ```
2017-06-30 19:06:51 -05:00
|
Update tests
2019-03-09 06:03:44 -06:00
LL | x[1i32];
suggest dereferencing index when trying to use a reference of usize as index
2022-07-24 08:26:44 -05:00
| ^^^^ slice indices are of type `usize` or ranges of `usize`
`rustc_on_unimplemented` supports referring to trait Add support to `rustc_on_unimplemented` to reference the full path of the annotated trait. For the following code: ```rust pub mod Bar { #[rustc_on_unimplemented = "test error `{Self}` with `{Bar}` `{Baz}` `{Quux}` in `{Foo}`"] pub trait Foo<Bar, Baz, Quux> {} } ``` the error message will be: ``` test error `std::string::String` with `u8` `_` `u32` in `Bar::Foo` ```
2017-06-30 19:06:51 -05:00
|
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
= help: the trait `SliceIndex<[i32]>` is not implemented for `i32`
Mention implementers of unsatisfied trait When encountering an unsatisfied trait bound, if there are no other suggestions, mention all the types that *do* implement that trait: ``` error[E0277]: the trait bound `f32: Foo` is not satisfied --> $DIR/impl_wf.rs:22:6 | LL | impl Baz<f32> for f32 { } | ^^^^^^^^ the trait `Foo` is not implemented for `f32` | = help: the following other types implement trait `Foo`: Option<T> i32 str note: required by a bound in `Baz` --> $DIR/impl_wf.rs:18:31 | LL | trait Baz<U: ?Sized> where U: Foo { } | ^^^ required by this bound in `Baz` ``` Mention implementers of traits in `ImplObligation`s. Do not mention other `impl`s for closures, ranges and `?`.
2021-12-13 14:56:40 -06:00
= help: the trait `SliceIndex<[T]>` is implemented for `usize`
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
= note: required because of the requirements on the impl of `Index<i32>` for `[i32]`
`rustc_on_unimplemented` supports referring to trait Add support to `rustc_on_unimplemented` to reference the full path of the annotated trait. For the following code: ```rust pub mod Bar { #[rustc_on_unimplemented = "test error `{Self}` with `{Bar}` `{Baz}` `{Quux}` in `{Foo}`"] pub trait Foo<Bar, Baz, Quux> {} } ``` the error message will be: ``` test error `std::string::String` with `u8` `_` `u32` in `Bar::Foo` ```
2017-06-30 19:06:51 -05:00
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 type `[i32]` cannot be indexed by `RangeTo<i32>`
suggest dereferencing index when trying to use a reference of usize as index
2022-07-24 08:26:44 -05:00
--> $DIR/slice-index.rs:9:7
`rustc_on_unimplemented` supports referring to trait Add support to `rustc_on_unimplemented` to reference the full path of the annotated trait. For the following code: ```rust pub mod Bar { #[rustc_on_unimplemented = "test error `{Self}` with `{Bar}` `{Baz}` `{Quux}` in `{Foo}`"] pub trait Foo<Bar, Baz, Quux> {} } ``` the error message will be: ``` test error `std::string::String` with `u8` `_` `u32` in `Bar::Foo` ```
2017-06-30 19:06:51 -05:00
|
Update tests
2019-03-09 06:03:44 -06:00
LL | x[..1i32];
suggest dereferencing index when trying to use a reference of usize as index
2022-07-24 08:26:44 -05:00
| ^^^^^^ slice indices are of type `usize` or ranges of `usize`
`rustc_on_unimplemented` supports referring to trait Add support to `rustc_on_unimplemented` to reference the full path of the annotated trait. For the following code: ```rust pub mod Bar { #[rustc_on_unimplemented = "test error `{Self}` with `{Bar}` `{Baz}` `{Quux}` in `{Foo}`"] pub trait Foo<Bar, Baz, Quux> {} } ``` the error message will be: ``` test error `std::string::String` with `u8` `_` `u32` in `Bar::Foo` ```
2017-06-30 19:06:51 -05:00
|
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
= help: the trait `SliceIndex<[i32]>` is not implemented for `RangeTo<i32>`
Refer to the TraitRef::identity in the message to be clearer
2022-03-26 21:02:07 -05:00
= help: the following other types implement trait `SliceIndex<T>`:
Mention implementers of unsatisfied trait When encountering an unsatisfied trait bound, if there are no other suggestions, mention all the types that *do* implement that trait: ``` error[E0277]: the trait bound `f32: Foo` is not satisfied --> $DIR/impl_wf.rs:22:6 | LL | impl Baz<f32> for f32 { } | ^^^^^^^^ the trait `Foo` is not implemented for `f32` | = help: the following other types implement trait `Foo`: Option<T> i32 str note: required by a bound in `Baz` --> $DIR/impl_wf.rs:18:31 | LL | trait Baz<U: ?Sized> where U: Foo { } | ^^^ required by this bound in `Baz` ``` Mention implementers of traits in `ImplObligation`s. Do not mention other `impl`s for closures, ranges and `?`.
2021-12-13 14:56:40 -06:00
<RangeTo<usize> as SliceIndex<[T]>>
<RangeTo<usize> as SliceIndex<str>>
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
= note: required because of the requirements on the impl of `Index<RangeTo<i32>>` for `[i32]`
`rustc_on_unimplemented` supports referring to trait Add support to `rustc_on_unimplemented` to reference the full path of the annotated trait. For the following code: ```rust pub mod Bar { #[rustc_on_unimplemented = "test error `{Self}` with `{Bar}` `{Baz}` `{Quux}` in `{Foo}`"] pub trait Foo<Bar, Baz, Quux> {} } ``` the error message will be: ``` test error `std::string::String` with `u8` `_` `u32` in `Bar::Foo` ```
2017-06-30 19:06:51 -05:00
error: aborting due to 2 previous errors
update tests
2018-03-03 08:59:40 -06:00
For more information about this error, try `rustc --explain E0277`.
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