Clean and tidy some traits #10967
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Clean and tidy some traits #10967
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Expanded, that is: - `AsOption` - `IntoOption` - `ToOption` - `AsEither` - `IntoEither` - `ToEither` - `AsResult` - `IntoResult` - `ToResult` These were defined for each other but never *used* anywhere. They are all trivial and so removal will have negligible effect upon anyone. `Either` has fallen out of favour (and its implementation of these traits of dubious semantics), `Option<T>` → `Result<T, ()>` was never really useful and `Result<T, E>` → `Option<T>` should now be done with `Result.ok()` (mirrored with `Result.err()` for even more usefulness). In summary, there's really no point in any of these remaining.
That is: - `ToStrConsume` → `IntoStr`; - `ToBytesConsume` → `IntoBytes`.
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These are some traits in some core modules, so this should be discussed a little bit. I am very much in favor of removing these traits. |
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I have added this to the agenda for tomorrow's meeting. |
bors
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Dec 17, 2013
…r=alexcrichton
### Remove {As,Into,To}{Option,Either,Result} traits.
Expanded, that is:
- `AsOption`
- `IntoOption`
- `ToOption`
- `AsEither`
- `IntoEither`
- `ToEither`
- `AsResult`
- `IntoResult`
- `ToResult`
These were defined for each other but never *used* anywhere. They are
all trivial and so removal will have negligible effect upon anyone.
`Either` has fallen out of favour (and its implementation of these
traits of dubious semantics), `Option<T>` → `Result<T, ()>` was never
really useful and `Result<T, E>` → `Option<T>` should now be done with
`Result.ok()` (mirrored with `Result.err()` for even more usefulness).
In summary, there's really no point in any of these remaining.
### Rename To{Str,Bytes}Consume traits to Into*.
That is:
- `ToStrConsume` → `IntoStr`;
- `ToBytesConsume` → `IntoBytes`.
flip1995
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Jun 30, 2023
New lints ['`needless_pub_self`], [`pub_with_shorthand`] and [`pub_without_shorthand`] Closes rust-lang#10963 Closes rust-lang#10964 changelog: New lints ['`needless_pub_self`], [`pub_with_shorthand`] and [`pub_without_shorthand`]
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Remove {As,Into,To}{Option,Either,Result} traits.
Expanded, that is:
AsOptionIntoOptionToOptionAsEitherIntoEitherToEitherAsResultIntoResultToResultThese were defined for each other but never used anywhere. They are
all trivial and so removal will have negligible effect upon anyone.
Eitherhas fallen out of favour (and its implementation of thesetraits of dubious semantics),
Option<T>→Result<T, ()>was neverreally useful and
Result<T, E>→Option<T>should now be done withResult.ok()(mirrored withResult.err()for even more usefulness).In summary, there's really no point in any of these remaining.
Rename To{Str,Bytes}Consume traits to Into*.
That is:
ToStrConsume→IntoStr;ToBytesConsume→IntoBytes.