Deprecation of str::slice_unchecked(_mut) #51807

newpavlov · 2018-06-26T10:41:22Z

I am not sure if 1.28.0 or 1.29.0 should be used for deprecation version, for now it's 1.28.0.

Additionally I've replaced slice_unchecked uses with get_unchecked. The only places where this method is still used are src/liballoc/tests/str.rs and src/liballoc/tests/str.rs.

rust-highfive · 2018-06-26T10:41:34Z

r? @Mark-Simulacrum

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kennytm · 2018-06-26T18:17:12Z

src/libcore/str/mod.rs

@@ -2453,6 +2453,7 @@ impl str {
    /// }
    /// ```
    #[stable(feature = "rust1", since = "1.0.0")]
+    #[rustc_deprecated(since = "1.28.0", reason = "duplicates `get_unchecked`")]


I am not sure if 1.28.0 or 1.29.0 should be used for deprecation version

It should be 1.29.0 (or higher).

kennytm · 2018-06-26T18:17:22Z

src/libcore/str/mod.rs

@@ -2483,6 +2484,7 @@ impl str {
    /// * `begin` and `end` must be byte positions within the string slice.
    /// * `begin` and `end` must lie on UTF-8 sequence boundaries.
    #[stable(feature = "str_slice_mut", since = "1.5.0")]
+    #[rustc_deprecated(since = "1.28.0", reason = "duplicates `get_unchecked`")]


get_unchecked_mut.

TimNN · 2018-07-03T17:36:33Z

Ping from triage, @Mark-Simulacrum, this PR needs your review!

pietroalbini · 2018-07-09T11:05:01Z

Ping from triage! This PR needs a review, can @Mark-Simulacrum or someone else from @rust-lang/libs review this?

SimonSapin · 2018-07-09T12:27:30Z

Looks fine to me, but since this is affecting stable APIs let’s go through the process:

@rfcbot fcp merge

rfcbot · 2018-07-09T12:27:30Z

Team member @SimonSapin has proposed to merge this. The next step is review by the rest of the tagged teams:

No concerns currently listed.

Once a majority of reviewers approve (and none object), this will enter its final comment period. If you spot a major issue that hasn't been raised at any point in this process, please speak up!

See this document for info about what commands tagged team members can give me.

rfcbot · 2018-07-11T04:17:00Z

🔔 This is now entering its final comment period, as per the review above. 🔔

RalfJung · 2018-07-12T10:51:38Z

The deprecation message could indicate that one can call get_unchecked(start..len), which was not immediately obvious to me.

SimonSapin · 2018-07-12T11:32:15Z

Yes, except it’s start..end :)

RalfJung · 2018-07-12T11:48:49Z

oops well, that then :)

rfcbot · 2018-07-21T04:18:19Z

The final comment period, with a disposition to merge, as per the review above, is now complete.

alexcrichton · 2018-07-21T15:43:50Z

@bors: r+

Ok great!

bors · 2018-07-21T15:43:51Z

📌 Commit 808bcfb has been approved by alexcrichton

kennytm · 2018-07-21T15:45:00Z

@bors rollup

…excrichton Deprecation of str::slice_unchecked(_mut) Closes rust-lang#51715 I am not sure if 1.28.0 or 1.29.0 should be used for deprecation version, for now it's 1.28.0. Additionally I've replaced `slice_unchecked` uses with `get_unchecked`. The only places where this method is still used are `src/liballoc/tests/str.rs` and `src/liballoc/tests/str.rs`.

Rollup of 11 pull requests Successful merges: - #51807 (Deprecation of str::slice_unchecked(_mut)) - #52051 (mem::swap the obvious way for types smaller than the SIMD optimization's block size) - #52465 (Add CI test harness for `thumb*` targets. [IRR-2018-embedded]) - #52507 (Reword when `_` couldn't be inferred) - #52508 (Document that Unique::empty() and NonNull::dangling() aren't sentinel values) - #52521 (Fix links in rustdoc book.) - #52581 (Avoid using `#[macro_export]` for documenting builtin macros) - #52582 (Typo) - #52587 (Add missing backtick in UniversalRegions doc comment) - #52594 (Run the error index tool against the sysroot libdir) - #52615 (Added new lines to .gitignore.)

Version 1.29.0 (2018-09-13) ========================== Compiler -------- - [Bumped minimum LLVM version to 5.0.][51899] - [Added `powerpc64le-unknown-linux-musl` target.][51619] - [Added `aarch64-unknown-hermit` and `x86_64-unknown-hermit` targets.][52861] Libraries --------- - [`Once::call_once` now no longer requires `Once` to be `'static`.][52239] - [`BuildHasherDefault` now implements `PartialEq` and `Eq`.][52402] - [`Box<CStr>`, `Box<OsStr>`, and `Box<Path>` now implement `Clone`.][51912] - [Implemented `PartialEq<&str>` for `OsString` and `PartialEq<OsString>` for `&str`.][51178] - [`Cell<T>` now allows `T` to be unsized.][50494] - [`SocketAddr` is now stable on Redox.][52656] Stabilized APIs --------------- - [`Arc::downcast`] - [`Iterator::flatten`] - [`Rc::downcast`] Cargo ----- - [Cargo can silently fix some bad lockfiles ][cargo/5831] You can use `--locked` to disable this behaviour. - [`cargo-install` will now allow you to cross compile an install using `--target`][cargo/5614] - [Added the `cargo-fix` subcommand to automatically move project code from 2015 edition to 2018.][cargo/5723] Misc ---- - [`rustdoc` now has the `--cap-lints` option which demotes all lints above the specified level to that level.][52354] For example `--cap-lints warn` will demote `deny` and `forbid` lints to `warn`. - [`rustc` and `rustdoc` will now have the exit code of `1` if compilation fails, and `101` if there is a panic.][52197] - [A preview of clippy has been made available through rustup.][51122] You can install the preview with `rustup component add clippy-preview` Compatibility Notes ------------------- - [`str::{slice_unchecked, slice_unchecked_mut}` are now deprecated.][51807] Use `str::get_unchecked(begin..end)` instead. - [`std::env::home_dir` is now deprecated for its unintuitive behaviour.][51656] Consider using the `home_dir` function from https://crates.io/crates/dirs instead. - [`rustc` will no longer silently ignore invalid data in target spec.][52330] [52861]: rust-lang/rust#52861 [52656]: rust-lang/rust#52656 [52239]: rust-lang/rust#52239 [52330]: rust-lang/rust#52330 [52354]: rust-lang/rust#52354 [52402]: rust-lang/rust#52402 [52103]: rust-lang/rust#52103 [52197]: rust-lang/rust#52197 [51807]: rust-lang/rust#51807 [51899]: rust-lang/rust#51899 [51912]: rust-lang/rust#51912 [51511]: rust-lang/rust#51511 [51619]: rust-lang/rust#51619 [51656]: rust-lang/rust#51656 [51178]: rust-lang/rust#51178 [51122]: rust-lang/rust#51122 [50494]: rust-lang/rust#50494 [cargo/5614]: rust-lang/cargo#5614 [cargo/5723]: rust-lang/cargo#5723 [cargo/5831]: rust-lang/cargo#5831 [`Arc::downcast`]: https://doc.rust-lang.org/std/sync/struct.Arc.html#method.downcast [`Iterator::flatten`]: https://doc.rust-lang.org/std/iter/trait.Iterator.html#method.flatten [`Rc::downcast`]: https://doc.rust-lang.org/std/rc/struct.Rc.html#method.downcast

Deprecation of str::slice_uncheked(_mut)

7c31609

rust-highfive assigned Mark-Simulacrum Jun 26, 2018

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removed slice_uncheked from src/liballoc/tests/str.rs

aaf2004

kennytm reviewed Jun 26, 2018

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kennytm added the T-libs-api Relevant to the library API team, which will review and decide on the PR/issue. label Jun 26, 2018

review fix

f1cc8b2

rfcbot added proposed-final-comment-period Proposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off. disposition-merge This issue / PR is in PFCP or FCP with a disposition to merge it. labels Jul 9, 2018

kennytm added S-waiting-on-team Status: Awaiting decision from the relevant subteam (see the T-<team> label). and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jul 9, 2018

Mark-Simulacrum assigned SimonSapin and unassigned Mark-Simulacrum Jul 9, 2018

rfcbot added final-comment-period In the final comment period and will be merged soon unless new substantive objections are raised. and removed proposed-final-comment-period Proposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off. labels Jul 11, 2018

kennytm added S-blocked Status: Blocked on something else such as an RFC or other implementation work. and removed S-waiting-on-team Status: Awaiting decision from the relevant subteam (see the T-<team> label). labels Jul 11, 2018

alexcrichton added the relnotes Marks issues that should be documented in the release notes of the next release. label Jul 11, 2018

deprecation message improvement

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rfcbot added the finished-final-comment-period The final comment period is finished for this PR / Issue. label Jul 21, 2018

rfcbot removed the final-comment-period In the final comment period and will be merged soon unless new substantive objections are raised. label Jul 21, 2018

kennytm added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-blocked Status: Blocked on something else such as an RFC or other implementation work. labels Jul 21, 2018

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 Jul 21, 2018

kennytm mentioned this pull request Jul 21, 2018

Rollup of 11 pull requests #52588

Closed

kennytm mentioned this pull request Jul 22, 2018

Rollup of 11 pull requests #52616

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bors merged commit 808bcfb into rust-lang:master Jul 22, 2018

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Deprecation of str::slice_unchecked(_mut) #51807

Deprecation of str::slice_unchecked(_mut) #51807

newpavlov commented Jun 26, 2018

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rfcbot commented Jul 9, 2018 •

edited by sfackler

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kennytm commented Jul 21, 2018

Deprecation of str::slice_unchecked(_mut) #51807

Deprecation of str::slice_unchecked(_mut) #51807

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