Preliminary cleanup of WitnessPat hoisting/printing
#128536
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We can replace some tricky iterator-mutation code with a much simpler version that uses `while let` to shrink a slice. We also check whether a subpattern would be a wildcard _before_ hoisting it, which will be very useful when trying to get rid of `print::PatKind` later.
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Ty! @bors r+ |
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Preliminary cleanup of `WitnessPat` hoisting/printing Follow-up to rust-lang#128430. The eventual goal is to remove `print::Pat` entirely, but in the course of working towards that I made so many small improvements that it seems wise to let those be reviewed/merged on their own first. Best reviewed commit-by-commit, most of which should be pretty simple and straightforward. r? `@Nadrieril`
This was referenced Aug 11, 2024
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…iaskrgr Rollup of 6 pull requests Successful merges: - rust-lang#120314 (core: optimise Debug impl for ascii::Char) - rust-lang#128536 (Preliminary cleanup of `WitnessPat` hoisting/printing) - rust-lang#128592 (Promote aarch64-apple-darwin to Tier 1) - rust-lang#128762 (Use more slice patterns inside the compiler) - rust-lang#128875 (rm `import.used`) - rust-lang#128882 (make LocalWaker::will_wake consistent with Waker::will_wake) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#128536 - Zalathar:print-cleanup, r=Nadrieril Preliminary cleanup of `WitnessPat` hoisting/printing Follow-up to rust-lang#128430. The eventual goal is to remove `print::Pat` entirely, but in the course of working towards that I made so many small improvements that it seems wise to let those be reviewed/merged on their own first. Best reviewed commit-by-commit, most of which should be pretty simple and straightforward. r? ``@Nadrieril``
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Remove `print::Pat` from the printing of `WitnessPat` After the preliminary work done in rust-lang#128536, we can now get rid of `print::Pat` entirely. - First, we introduce a variant `PatKind::Print(String)`. - Then we incrementally remove each other variant of `PatKind`, by having the relevant code produce `PatKind::Print` instead. - Once `PatKind::Print` is the only remaining variant, it becomes easy to remove `print::Pat` and replace it with `String`. There is more cleanup that I have in mind, but this seemed like a natural stopping point for one PR. r? `@Nadrieril`
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Remove `print::Pat` from the printing of `WitnessPat` After the preliminary work done in rust-lang#128536, we can now get rid of `print::Pat` entirely. - First, we introduce a variant `PatKind::Print(String)`. - Then we incrementally remove each other variant of `PatKind`, by having the relevant code produce `PatKind::Print` instead. - Once `PatKind::Print` is the only remaining variant, it becomes easy to remove `print::Pat` and replace it with `String`. There is more cleanup that I have in mind, but this seemed like a natural stopping point for one PR. r? `@Nadrieril`
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Remove `print::Pat` from the printing of `WitnessPat` After the preliminary work done in rust-lang#128536, we can now get rid of `print::Pat` entirely. - First, we introduce a variant `PatKind::Print(String)`. - Then we incrementally remove each other variant of `PatKind`, by having the relevant code produce `PatKind::Print` instead. - Once `PatKind::Print` is the only remaining variant, it becomes easy to remove `print::Pat` and replace it with `String`. There is more cleanup that I have in mind, but this seemed like a natural stopping point for one PR. r? ``@Nadrieril``
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Remove `print::Pat` from the printing of `WitnessPat` After the preliminary work done in rust-lang#128536, we can now get rid of `print::Pat` entirely. - First, we introduce a variant `PatKind::Print(String)`. - Then we incrementally remove each other variant of `PatKind`, by having the relevant code produce `PatKind::Print` instead. - Once `PatKind::Print` is the only remaining variant, it becomes easy to remove `print::Pat` and replace it with `String`. There is more cleanup that I have in mind, but this seemed like a natural stopping point for one PR. r? ```@Nadrieril```
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Rollup merge of rust-lang#128965 - Zalathar:no-pat, r=Nadrieril Remove `print::Pat` from the printing of `WitnessPat` After the preliminary work done in rust-lang#128536, we can now get rid of `print::Pat` entirely. - First, we introduce a variant `PatKind::Print(String)`. - Then we incrementally remove each other variant of `PatKind`, by having the relevant code produce `PatKind::Print` instead. - Once `PatKind::Print` is the only remaining variant, it becomes easy to remove `print::Pat` and replace it with `String`. There is more cleanup that I have in mind, but this seemed like a natural stopping point for one PR. r? ```@Nadrieril```
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Follow-up to #128430.
The eventual goal is to remove
print::Patentirely, but in the course of working towards that I made so many small improvements that it seems wise to let those be reviewed/merged on their own first.Best reviewed commit-by-commit, most of which should be pretty simple and straightforward.
r? @Nadrieril