Add #[must_use] attribute to Coroutine trait
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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @joboet (or someone else) some time within the next two weeks. Please see the contribution instructions for more information. Namely, in order to ensure the minimum review times lag, PR authors and assigned reviewers should ensure that the review label (
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Makes sense! This seems entirely uncontroversial, so |
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…joboet Add `#[must_use]` attribute to `Coroutine` trait [Coroutines tracking issue](rust-lang#43122) Like closures (`FnOnce`, `AsyncFn`, etc.), coroutines are lazy and do nothing unless called (resumed). Closure traits like `FnOnce` have `#[must_use = "closures are lazy and do nothing unless called"]` to catch likely bugs for users of APIs that produce them. This PR adds such a `#[must_use]` attribute to `trait Coroutine`.
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…llaumeGomez Rollup of 7 pull requests Successful merges: - rust-lang#127857 (Allow to customize `// TODO:` comment for deprecated safe autofix) - rust-lang#128410 (Migrate `remap-path-prefix-dwarf` `run-make` test to rmake) - rust-lang#128828 (`-Znext-solver` caching) - rust-lang#128873 (Add windows-targets crate to std's sysroot) - rust-lang#129034 (Add `#[must_use]` attribute to `Coroutine` trait) - rust-lang#129049 (compiletest: Don't panic on unknown JSON-like output lines) - rust-lang#129050 (Emit a warning instead of an error if `--generate-link-to-definition` is used with other output formats than HTML) r? `@ghost` `@rustbot` modify labels: rollup
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…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#122884 (Optimize integer `pow` by removing the exit branch) - rust-lang#127857 (Allow to customize `// TODO:` comment for deprecated safe autofix) - rust-lang#129034 (Add `#[must_use]` attribute to `Coroutine` trait) - rust-lang#129049 (compiletest: Don't panic on unknown JSON-like output lines) - rust-lang#129050 (Emit a warning instead of an error if `--generate-link-to-definition` is used with other output formats than HTML) - rust-lang#129056 (Fix one usage of target triple in bootstrap) - rust-lang#129058 (Add mw back to review rotation) r? `@ghost` `@rustbot` modify labels: rollup
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…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#122884 (Optimize integer `pow` by removing the exit branch) - rust-lang#127857 (Allow to customize `// TODO:` comment for deprecated safe autofix) - rust-lang#129034 (Add `#[must_use]` attribute to `Coroutine` trait) - rust-lang#129049 (compiletest: Don't panic on unknown JSON-like output lines) - rust-lang#129050 (Emit a warning instead of an error if `--generate-link-to-definition` is used with other output formats than HTML) - rust-lang#129056 (Fix one usage of target triple in bootstrap) - rust-lang#129058 (Add mw back to review rotation) r? `@ghost` `@rustbot` modify labels: rollup
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…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#122884 (Optimize integer `pow` by removing the exit branch) - rust-lang#127857 (Allow to customize `// TODO:` comment for deprecated safe autofix) - rust-lang#129034 (Add `#[must_use]` attribute to `Coroutine` trait) - rust-lang#129049 (compiletest: Don't panic on unknown JSON-like output lines) - rust-lang#129050 (Emit a warning instead of an error if `--generate-link-to-definition` is used with other output formats than HTML) - rust-lang#129056 (Fix one usage of target triple in bootstrap) - rust-lang#129058 (Add mw back to review rotation) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#129034 - henryksloan:coroutine-must-use, r=joboet Add `#[must_use]` attribute to `Coroutine` trait [Coroutines tracking issue](rust-lang#43122) Like closures (`FnOnce`, `AsyncFn`, etc.), coroutines are lazy and do nothing unless called (resumed). Closure traits like `FnOnce` have `#[must_use = "closures are lazy and do nothing unless called"]` to catch likely bugs for users of APIs that produce them. This PR adds such a `#[must_use]` attribute to `trait Coroutine`.
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Coroutines tracking issue
Like closures (
FnOnce,AsyncFn, etc.), coroutines are lazy and do nothing unless called (resumed). Closure traits likeFnOncehave#[must_use = "closures are lazy and do nothing unless called"]to catch likely bugs for users of APIs that produce them. This PR adds such a#[must_use]attribute totrait Coroutine.