Expand `str_as_str` to more types by GrigorenkoPV · Pull Request #145933 · rust-lang/rust

GrigorenkoPV · 2025-08-27T14:41:55Z

Tracking issue: #130366
ACP: rust-lang/libs-team#643

This PR expands str_from_str feature and adds analogous methods to more types. Namely:

&CStr
&[T], &mut [T]
&OsStr
&Path
&ByteStr, &mut ByteStr (tracking issue: Tracking Issue for ByteStr/ByteString #134915) (technically was not part of ACP)

rustbot · 2025-08-27T14:41:59Z

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rustbot · 2025-11-11T20:14:22Z

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GrigorenkoPV · 2025-11-11T20:14:38Z

@rustbot label -S-waiting-on-ACP +T-libs
@rustbot ready
r?

rustbot · 2025-11-11T20:15:02Z

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joboet · 2025-12-02T16:54:00Z

Looks fine, but I'd also add &mut variants for Path, OsStr and CStr if that's fine for T-libs-api.

r? libs-api

Expand `str_as_str` to more types Tracking issue: #130366 ACP: rust-lang/libs-team#643 This PR expands `str_from_str` feature and adds analogous methods to more types. Namely: - `&CStr` - `&[T]`, `&mut [T]` - `&OsStr` - `&Path` - `&ByteStr`, `&mut ByteStr` (tracking issue: #134915) (technically was not part of ACP)

bors · 2025-12-18T08:26:00Z

⌛ Testing commit 48f7f31 with merge 6bf7d69...

bors · 2025-12-18T08:33:08Z

💔 Test failed - checks-actions

rust-log-analyzer · 2025-12-18T09:25:37Z

A job failed! Check out the build log: (web) (plain enhanced) (plain)

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…uwer Rollup of 5 pull requests Successful merges: - #145933 (Expand `str_as_str` to more types) - #148849 (Set -Cpanic=abort in windows-msvc stack protector tests) - #150048 (std_detect: AArch64 Darwin: expose SME F16F16 and B16B16 features) - #150083 (tests/run-make-cargo/same-crate-name-and-macro-name: New regression test) - #150102 (Fixed ICE for EII with multiple defaults due to duplicate definition in nameres) r? `@ghost` `@rustbot` modify labels: rollup

JonathanBrouwer · 2025-12-18T09:54:14Z

@bors retry (Spurious)

…uwer Rollup of 5 pull requests Successful merges: - #145933 (Expand `str_as_str` to more types) - #148849 (Set -Cpanic=abort in windows-msvc stack protector tests) - #150048 (std_detect: AArch64 Darwin: expose SME F16F16 and B16B16 features) - #150083 (tests/run-make-cargo/same-crate-name-and-macro-name: New regression test) - #150102 (Fixed ICE for EII with multiple defaults due to duplicate definition in nameres) r? `@ghost` `@rustbot` modify labels: rollup

…nieu Expand `str_as_str` to more types Tracking issue: rust-lang#130366 ACP: rust-lang/libs-team#643 This PR expands `str_from_str` feature and adds analogous methods to more types. Namely: - `&CStr` - `&[T]`, `&mut [T]` - `&OsStr` - `&Path` - `&ByteStr`, `&mut ByteStr` (tracking issue: rust-lang#134915) (technically was not part of ACP)

…uwer Rollup of 11 pull requests Successful merges: - #145933 (Expand `str_as_str` to more types) - #148849 (Set -Cpanic=abort in windows-msvc stack protector tests) - #149925 (`cfg_select!`: parse unused branches) - #150022 (Generate macro expansion for rust compiler crates docs) - #150024 (Support recursive delegation) - #150048 (std_detect: AArch64 Darwin: expose SME F16F16 and B16B16 features) - #150083 (tests/run-make-cargo/same-crate-name-and-macro-name: New regression test) - #150102 (Fixed ICE for EII with multiple defaults due to duplicate definition in nameres) - #150124 (unstable.rs: fix typos in comments (implementatble -> implementable)) - #150125 (Port `#[rustc_lint_opt_deny_field_access]` to attribute parser) - #150126 (Subtree sync for rustc_codegen_cranelift) Failed merges: - #150127 (Port `#[rustc_lint_untracked_query_information]` and `#[rustc_lint_diagnostics]` to using attribute parsers) r? `@ghost` `@rustbot` modify labels: rollup

…uwer Rollup of 12 pull requests Successful merges: - #145933 (Expand `str_as_str` to more types) - #148849 (Set -Cpanic=abort in windows-msvc stack protector tests) - #149925 (`cfg_select!`: parse unused branches) - #149952 (Suggest struct pattern when destructuring Range with .. syntax) - #150022 (Generate macro expansion for rust compiler crates docs) - #150024 (Support recursive delegation) - #150048 (std_detect: AArch64 Darwin: expose SME F16F16 and B16B16 features) - #150083 (tests/run-make-cargo/same-crate-name-and-macro-name: New regression test) - #150102 (Fixed ICE for EII with multiple defaults due to duplicate definition in nameres) - #150124 (unstable.rs: fix typos in comments (implementatble -> implementable)) - #150125 (Port `#[rustc_lint_opt_deny_field_access]` to attribute parser) - #150126 (Subtree sync for rustc_codegen_cranelift) Failed merges: - #150127 (Port `#[rustc_lint_untracked_query_information]` and `#[rustc_lint_diagnostics]` to using attribute parsers) r? `@ghost` `@rustbot` modify labels: rollup

Rollup merge of #145933 - GrigorenkoPV:thing_as_thing, r=Amanieu Expand `str_as_str` to more types Tracking issue: #130366 ACP: rust-lang/libs-team#643 This PR expands `str_from_str` feature and adds analogous methods to more types. Namely: - `&CStr` - `&[T]`, `&mut [T]` - `&OsStr` - `&Path` - `&ByteStr`, `&mut ByteStr` (tracking issue: #134915) (technically was not part of ACP)

Replace res_bytes.as_slice() with idiomatic &res_bytes[..] to avoid name collision with new [T]::as_slice() method added in Rust nightly (rust-lang/rust#145933, merged 2025-12-18). Issue observed in nightly build checks for PR awslabs#1293. The WriteBuf trait from zstd was only imported to provide as_slice() through its impl for [u8], which is unnecessary coupling. Using slice syntax is more idiomatic and doesn't require external trait imports.

…1295) Replace res_bytes.as_slice() with idiomatic &res_bytes[..] to avoid name collision with new [T]::as_slice() method added in Rust nightly (rust-lang/rust#145933, merged 2025-12-18). Issue observed in nightly build checks for PR #1293. The WriteBuf trait from zstd was only imported to provide as_slice() through its impl for [u8], which is unnecessary coupling. Using slice syntax is more idiomatic and doesn't require external trait imports.

…uwer Rollup of 12 pull requests Successful merges: - rust-lang/rust#145933 (Expand `str_as_str` to more types) - rust-lang/rust#148849 (Set -Cpanic=abort in windows-msvc stack protector tests) - rust-lang/rust#149925 (`cfg_select!`: parse unused branches) - rust-lang/rust#149952 (Suggest struct pattern when destructuring Range with .. syntax) - rust-lang/rust#150022 (Generate macro expansion for rust compiler crates docs) - rust-lang/rust#150024 (Support recursive delegation) - rust-lang/rust#150048 (std_detect: AArch64 Darwin: expose SME F16F16 and B16B16 features) - rust-lang/rust#150083 (tests/run-make-cargo/same-crate-name-and-macro-name: New regression test) - rust-lang/rust#150102 (Fixed ICE for EII with multiple defaults due to duplicate definition in nameres) - rust-lang/rust#150124 (unstable.rs: fix typos in comments (implementatble -> implementable)) - rust-lang/rust#150125 (Port `#[rustc_lint_opt_deny_field_access]` to attribute parser) - rust-lang/rust#150126 (Subtree sync for rustc_codegen_cranelift) Failed merges: - rust-lang/rust#150127 (Port `#[rustc_lint_untracked_query_information]` and `#[rustc_lint_diagnostics]` to using attribute parsers) r? `@ghost` `@rustbot` modify labels: rollup

…1295) Replace res_bytes.as_slice() with idiomatic &res_bytes[..] to avoid name collision with new [T]::as_slice() method added in Rust nightly (rust-lang/rust#145933, merged 2025-12-18). Issue observed in nightly build checks for PR #1293. The WriteBuf trait from zstd was only imported to provide as_slice() through its impl for [u8], which is unnecessary coupling. Using slice syntax is more idiomatic and doesn't require external trait imports.

rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Aug 27, 2025

GrigorenkoPV mentioned this pull request Aug 27, 2025

str::as_str but for CStr, OsStr, Path, and [T] rust-lang/libs-team#643

Closed

rustbot added S-waiting-on-ACP Status: PR has an ACP and is waiting for the ACP to complete. T-libs-api Relevant to the library API team, which will review and decide on the PR/issue. and removed T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Aug 27, 2025

GrigorenkoPV marked this pull request as draft August 27, 2025 21:38

rustbot added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Aug 27, 2025

Dylan-DPC removed the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Oct 19, 2025

{CStr,OsStr,Path}::as_$1

a197ebd

GrigorenkoPV force-pushed the thing_as_thing branch from 05090a9 to 2a20389 Compare November 11, 2025 20:09

GrigorenkoPV changed the title ~~thing_as_thing~~ Expand str_as_str to more types Nov 11, 2025

GrigorenkoPV marked this pull request as ready for review November 11, 2025 20:14

rustbot added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Nov 11, 2025

rustbot assigned joboet Nov 11, 2025

rustbot added T-libs Relevant to the library team, which will review and decide on the PR/issue. and removed S-waiting-on-ACP Status: PR has an ACP and is waiting for the ACP to complete. labels Nov 11, 2025

GrigorenkoPV mentioned this pull request Nov 11, 2025

Tracking Issue for str::as_str() & friends #130366

Open

9 tasks

[T]::as_[mut_]slice

4e5ce74

GrigorenkoPV force-pushed the thing_as_thing branch from 2a20389 to 18ebcd9 Compare November 11, 2025 20:40

ByteStr::as_[mut_]byte_str

48f7f31

GrigorenkoPV force-pushed the thing_as_thing branch from 18ebcd9 to 48f7f31 Compare November 11, 2025 20:46

rustbot assigned Amanieu and unassigned joboet Dec 2, 2025

bors added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Dec 18, 2025

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 18, 2025

JonathanBrouwer mentioned this pull request Dec 18, 2025

Rollup of 11 pull requests #150132

Closed

JonathanBrouwer mentioned this pull request Dec 18, 2025

Rollup of 12 pull requests #150135

Merged

bors merged commit 663d843 into rust-lang:main Dec 18, 2025
11 of 12 checks passed

rustbot added this to the 1.94.0 milestone Dec 18, 2025

GrigorenkoPV deleted the thing_as_thing branch December 21, 2025 14:00

chessbyte mentioned this pull request Dec 21, 2025

fix(core): remove zstd WriteBuf dependency for byte slice conversion awslabs/llrt#1295

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5 tasks

github-actions Bot mentioned this pull request Dec 23, 2025

Toolchain upgrade to nightly-2026-02-09 flux-rs/flux#1345

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Expand `str_as_str` to more types#145933

Expand `str_as_str` to more types#145933
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