Use BitVector for global sets of AttrId #52799
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| @@ -47,7 +47,11 @@ impl<C: Idx> BitVector<C> { | |||
| #[inline] | |||
| pub fn contains(&self, bit: C) -> bool { | |||
| let (word, mask) = word_mask(bit); | |||
| (self.data[word] & mask) != 0 | |||
| if let Some(word) = self.data.get(word) { | |||
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Tiny Nit (feel free to ignore): this could be written as self.data.get(word).map_or(false, |word| (word & mask) != 0)
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map_or etc usually makes me more confused then seeing code like this so I prefer this in general when not in a conditional or other space-constrained place.
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That's completely reasonable =)
src/libsyntax/attr/mod.rs
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| slot.resize(idx + 1, 0); | ||
| } | ||
| slot[idx] |= 1 << shift; | ||
| slot.insert(attr.id); |
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Would you mind changing this (and the other cases below) to just globals.used_attrs.lock().insert(attr.id);? The slot binding does not really add much to the codes readability.
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Thanks for the PR, @Mark-Simulacrum! The changes to attribute tracking look good to me. However, the PR changes the interface of You could add a new type |
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I've split out the BitVector changes into a separate commit; instead of having |
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Thanks, Mark! @bors r+ |
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📌 Commit 6185bcfa8b574b78a84f43363427957ee35a0743 has been approved by |
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@bors r- Merge conflicts |
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Rollup of 31 pull requests Successful merges: - #52332 (dead-code lint: say "constructed" for structs) - #52340 (Document From trait implementations for OsStr, OsString, CString, and CStr) - #52628 (Cleanup some rustdoc code) - #52732 (Remove unstable and deprecated APIs) - #52745 (Update clippy to latest master) - #52756 (rustc: Disallow machine applicability in foreign macros) - #52771 (Clarify thread::park semantics) - #52810 ([NLL] Don't make "fake" match variables mutable) - #52821 (pretty print for std::collections::vecdeque) - #52822 (Fix From<LocalWaker>) - #52824 (Fix -Wpessimizing-move warnings in rustllvm/PassWrapper) - #52831 (remove references to AUTHORS.txt file) - #52835 (Fix Alias intra doc ICE) - #52842 (update comment) - #52846 (Add timeout to use of `curl` in bootstrap.py.) - #52851 (Make the tool_lints actually usable) - #52853 (Improve bootstrap help on stages) - #52859 (Use Vec::extend in SmallVec::extend when applicable) - #52861 (Add targets for HermitCore (https://hermitcore.org) to the Rust compiler and port libstd to it.) - #52867 (releases.md: fix 2 typos) - #52870 (Implement Unpin for FutureObj and LocalFutureObj) - #52876 (run-pass/const-endianness: negate before to_le()) - #52878 (Fix wrong issue number in the test name) - #52883 (Include lifetime in mutability suggestion in NLL messages) - #52904 (NLL: sort diagnostics by span) - #52905 (Fix a typo in unsize.rs) - #52907 (NLL: On "cannot move out of type" error, print original before rewrite) - #52908 (Use SetLenOnDrop in Vec::truncate()) - #52914 (Only run the sparc-abi test on sparc) - #52918 (Backport 1.27.2 release notes) - #52929 (Update compatibility note for 1.28.0 to be correct) Failed merges: - #52758 (Cleanup for librustc::session) - #52799 (Use BitVector for global sets of AttrId) r? @ghost
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@bors r=michaelwoerister |
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📌 Commit 9bc4fbb has been approved by |
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…michaelwoerister Use BitVector for global sets of AttrId
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…michaelwoerister Use BitVector for global sets of AttrId
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Rollup of 15 pull requests Successful merges: - #52793 (Add test for NLL: unexpected "free region `` does not outlive" error ) - #52799 (Use BitVector for global sets of AttrId) - #52809 (Add test for unexpected region for local data ReStatic) - #52834 ([NLL] Allow conflicting borrows of promoted length zero arrays) - #52835 (Fix Alias intra doc ICE) - #52854 (fix memrchr in miri) - #52899 (tests/ui: Add missing mips{64} ignores) - #52908 (Use SetLenOnDrop in Vec::truncate()) - #52915 (Don't count MIR locals as borrowed after StorageDead when finding locals live across a yield terminator) - #52926 (rustc: Trim down the `rust_2018_idioms` lint group) - #52930 (rustc_resolve: record single-segment extern crate import resolutions.) - #52939 (Make io::Read::read_to_end consider io::Take::limit) - #52942 (Another SmallVec.extend optimization) - #52947 (1.27 actually added the `armv5te-unknown-linux-musleabi` target) - #52954 (async can begin expressions) Failed merges: r? @ghost
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