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Delete Utf8Lossy::from_str #91697

Merged
merged 1 commit into from
Dec 11, 2021
Merged

Delete Utf8Lossy::from_str #91697

merged 1 commit into from
Dec 11, 2021

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dtolnay
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@dtolnay dtolnay commented Dec 9, 2021

This whole type is marked as being for str internals only, but this constructor is never used by str internals. If you had a &str already and wanted to lossy display it or iterate its lossy utf8 chunks, you would simply not use Utf8Lossy because the whole &str is known to be one contiguous valid utf8 chunk.

If code really does need to obtain a value of type &Utf8Lossy somewhere, and has only a &str, Utf8Lossy::from_bytes(s.as_bytes()) remains available. As currently implemented, there is no performance penalty relative to from_str i.e. the Utf8Lossy does not "remember" that it was constructed using from_str to bypass later utf8 decoding.

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r? @Mark-Simulacrum

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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Dec 9, 2021
@apiraino apiraino added the T-libs Relevant to the library team, which will review and decide on the PR/issue. label Dec 9, 2021
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@bors r+ rollup

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bors commented Dec 9, 2021

📌 Commit 4b0a9c9 has been approved by Mark-Simulacrum

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Dec 9, 2021
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Dec 9, 2021
…crum

Delete Utf8Lossy::from_str

This whole type is marked as being for str internals only, but this constructor is never used by str internals. If you had a &str already and wanted to lossy display it or iterate its lossy utf8 chunks, you would simply not use Utf8Lossy because the whole &str is known to be one contiguous valid utf8 chunk.

If code really does need to obtain a value of type &Utf8Lossy somewhere, and has only a &str, `Utf8Lossy::from_bytes(s.as_bytes())` remains available. As currently implemented, there is no performance penalty relative to `from_str` i.e. the Utf8Lossy does not "remember" that it was constructed using `from_str` to bypass later utf8 decoding.
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Dec 10, 2021
…crum

Delete Utf8Lossy::from_str

This whole type is marked as being for str internals only, but this constructor is never used by str internals. If you had a &str already and wanted to lossy display it or iterate its lossy utf8 chunks, you would simply not use Utf8Lossy because the whole &str is known to be one contiguous valid utf8 chunk.

If code really does need to obtain a value of type &Utf8Lossy somewhere, and has only a &str, `Utf8Lossy::from_bytes(s.as_bytes())` remains available. As currently implemented, there is no performance penalty relative to `from_str` i.e. the Utf8Lossy does not "remember" that it was constructed using `from_str` to bypass later utf8 decoding.
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Dec 10, 2021
…crum

Delete Utf8Lossy::from_str

This whole type is marked as being for str internals only, but this constructor is never used by str internals. If you had a &str already and wanted to lossy display it or iterate its lossy utf8 chunks, you would simply not use Utf8Lossy because the whole &str is known to be one contiguous valid utf8 chunk.

If code really does need to obtain a value of type &Utf8Lossy somewhere, and has only a &str, `Utf8Lossy::from_bytes(s.as_bytes())` remains available. As currently implemented, there is no performance penalty relative to `from_str` i.e. the Utf8Lossy does not "remember" that it was constructed using `from_str` to bypass later utf8 decoding.
bors added a commit to rust-lang-ci/rust that referenced this pull request Dec 11, 2021
…askrgr

Rollup of 11 pull requests

Successful merges:

 - rust-lang#91668 (Remove the match on `ErrorKind::Other`)
 - rust-lang#91678 (Add tests fixed by rust-lang#90023)
 - rust-lang#91679 (Move core/stream/stream/mod.rs to core/stream/stream.rs)
 - rust-lang#91681 (fix typo in `intrinsics::raw_eq` docs)
 - rust-lang#91686 (Fix `Vec::reserve_exact` documentation)
 - rust-lang#91697 (Delete Utf8Lossy::from_str)
 - rust-lang#91706 (Add unstable book entries for parts of asm that are not being stabilized)
 - rust-lang#91709 (Replace iterator-based set construction by *Set::From<[T; N]>)
 - rust-lang#91716 (Improve x.py logging and defaults a bit more)
 - rust-lang#91747 (Add pierwill to .mailmap)
 - rust-lang#91755 (Fix since attribute for const_linked_list_new feature)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 2784051 into rust-lang:master Dec 11, 2021
@rustbot rustbot added this to the 1.59.0 milestone Dec 11, 2021
@dtolnay dtolnay deleted the lossyfromstr branch January 31, 2022 17:54
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6 participants