Speed up the lookup of traits implementing a given method #6646
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Currently, trait_info is a hashmap that allows a quick lookup of all methods contained in a given trait, but we actually only use it to lookup traits that contain a given method. Adjusting the map to support the lookup we actually need gives a nice speed boost, reducing the time required for the resolution step for librustc from ~2.6s to ~1.0s on my box.
bors
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May 21, 2013
flip1995
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Feb 11, 2021
…sults, r=flip1995 New Lint: Manual Flatten This is a draft PR for [Issue 6564](rust-lang/rust-clippy#6564). r? `@camsteffen` - \[x] Followed [lint naming conventions][lint_naming] - \[x] Added passing UI tests (including committed `.stderr` file) - \[x] `cargo test` passes locally - \[x] Executed `cargo dev update_lints` - \[x] Added lint documentation - \[x] Run `cargo dev fmt` --- *Please write a short comment explaining your change (or "none" for internal only changes)* changelog: Add new lint [`manual_flatten`] to check for loops over a single `if let` expression with `Result` or `Option`.
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