Implement count for EscapeUnicode
#33849
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r? @aturon (rust_highfive has picked a reviewer for you, use r? to override) |
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Given that he has already reviewed the previous PR, maybe r? @alexcrichton |
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Fixed rebase (which should fix the build, too) and improved stability attributes. |
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Out of curiosity, why reorder these? The previous order makes a little more sense in my mind as we tend to read top-to-bottom
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Can you also be sure to add some tests for |
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☔ The latest upstream changes (presumably #33699) made this pull request unmergeable. Please resolve the merge conflicts. |
In rust-lang#28662, `size_hint` was made exact for `EscapeUnicode` and `EscapeDefault`, but neither was marked as `ExactSizeIterator`.
Trivial implementation, as both are `ExactSizeIterator`s. Part of rust-lang#24214.
and reuse it in `size_hint`.
Simply a micro-optimization to reduce code size and to open up inlining opportunities.
to also check that it is legitimately an `ExactSizeIterator`.
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Rebased, added a comment to explain the re-ordering (a micro-optimisation), and extended the test. |
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…richton Implement `count` for `EscapeUnicode` and cleanup the code for `count` for `EscapeDefault` (instead of repeating the `match` for `size_hint` and `count`). This PR marks EscapeUnicode and EscapeDefault as ExactSizeIterator. The constraints for the trait implementations held even before this PR, but I am not sure if this is something we want to guarantee/expose (I would love feedback on this, especially on what would be the appropriate way to handle stabilisation, if needed). Part of rust-lang#24214, split from rust-lang#31049. The test for `count` was added in rust-lang#33103.
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and cleanup the code for
countforEscapeDefault(instead of repeating thematchforsize_hintandcount).This PR marks EscapeUnicode and EscapeDefault as ExactSizeIterator. The constraints for the trait implementations held even before this PR, but I am not sure if this is something we want to guarantee/expose (I would love feedback on this, especially on what would be the appropriate way to handle stabilisation, if needed).
Part of #24214, split from #31049.
The test for
countwas added in #33103.