Intern more strings #5293
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Intern more strings #5293
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@Eh2406 no problem! This looks sane to me. |
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☔ The latest upstream changes (presumably #5292) made this pull request unmergeable. Please resolve the merge conflicts. |
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Looks reasonable to me, thanks! I'm ok landing this without requiring a benchmark |
cargo +stable fmt
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Rebased. |
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@bors: r+ |
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📌 Commit 5c9d34b has been approved by |
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Intern more strings As pointed out in #5270 (comment), that clean up adds the mildly expensive `InternedString::new` to the hot path in the resolver. The process of this PR is: 1. Find a `InternedString::new` in the hot path. 2. replace the argument of type `&str` that is passed along to `InternedString::new` with the type `InternedString` 3. add an `InternedString::new` to the callers until it type checked. 4. Repeat from step 1. This stop if: - It was traced back to something that was already an `InternedString` - It was traced back to a `.to_string()` call - It was in a persistent object creation cc: - @djc this is building on your work, I don't want to get in your way. - @alexcrichton is this making things clearer and do you want to see a performance check?
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☀️ Test successful - status-appveyor, status-travis |
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As pointed out in #5270 (comment), that clean up adds the mildly expensive
InternedString::newto the hot path in the resolver.The process of this PR is:
InternedString::newin the hot path.&strthat is passed along toInternedString::newwith the typeInternedStringInternedString::newto the callers until it type checked.This stop if:
InternedString.to_string()callcc: