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rustc_mir_itertools: Avoid needless collect with itertools #93234

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merged 1 commit into from
Jan 24, 2022

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mati865
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@mati865 mati865 commented Jan 23, 2022

I don't think this should have measurable perf impact (at least not on perf.rlo benchmarks), it's mostly for readability.

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r? @jackh726

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@rustbot rustbot added the T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. label Jan 23, 2022
@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jan 23, 2022
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the8472 commented Jan 23, 2022

Instead of join you can could intersperse().collect(). intersperse docs

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I think join is fine, particularly given we already have this dependency.

@bors r+

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bors commented Jan 23, 2022

📌 Commit bc8cef1 has been approved by jackh726

@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 Jan 23, 2022
bors added a commit to rust-lang-ci/rust that referenced this pull request Jan 23, 2022
…askrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#91526 (rustc_lint: Some early linting refactorings)
 - rust-lang#92555 (Implement RFC 3151: Scoped threads.)
 - rust-lang#93213 (Fix `let_chains` and `if_let_guard` feature flags)
 - rust-lang#93219 (Add preliminary support for inline assembly for msp430.)
 - rust-lang#93226 (Normalize field access types during borrowck)
 - rust-lang#93227 (Liberate late bound regions when collecting GAT substs in wfcheck)
 - rust-lang#93229 (Remove DiagnosticBuilder.quiet)
 - rust-lang#93234 (rustc_mir_itertools: Avoid needless `collect` with itertools)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit eea833f into rust-lang:master Jan 24, 2022
@rustbot rustbot added this to the 1.60.0 milestone Jan 24, 2022
@mati865 mati865 deleted the mir-transform-use-itertools branch January 24, 2022 08:24
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6 participants