Minimal indexmap support for rustc-rayon
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For reference, here's how the impls currently look on the ... and they use the forwarding macros found here: So those are using |
cuviper
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[`rustc-rayon v0.5.1`](rust-lang/rustc-rayon#14) added `indexmap` implementations that will allow `indexmap` to drop its own "internal-only" implementations. (This is separate from `indexmap`'s implementation for normal `rayon`.)
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While this looks like a breaking change, it was always documented in `Cargo.toml` as internal-only for use in the compiler: > Internal feature, only used when building as part of rustc, > not part of the stable interface of this crate. That's flipped around in [rustc-rayon#14] and [rust#136149]. [rustc-rayon#14]: rust-lang/rustc-rayon#14 [rust#136149]: rust-lang/rust#136149
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…mpiler-errors Flip the `rustc-rayon`/`indexmap` dependency order [`rustc-rayon v0.5.1`](rust-lang/rustc-rayon#14) added `indexmap` implementations that will allow `indexmap` to drop its own "internal-only" implementations. (This is separate from `indexmap`'s implementation for normal `rayon`.)
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…mpiler-errors Flip the `rustc-rayon`/`indexmap` dependency order [`rustc-rayon v0.5.1`](rust-lang/rustc-rayon#14) added `indexmap` implementations that will allow `indexmap` to drop its own "internal-only" implementations. (This is separate from `indexmap`'s implementation for normal `rayon`.)
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Rollup merge of rust-lang#136149 - cuviper:rustc-rayon-indexmap, r=compiler-errors Flip the `rustc-rayon`/`indexmap` dependency order [`rustc-rayon v0.5.1`](rust-lang/rustc-rayon#14) added `indexmap` implementations that will allow `indexmap` to drop its own "internal-only" implementations. (This is separate from `indexmap`'s implementation for normal `rayon`.)
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…rors Flip the `rustc-rayon`/`indexmap` dependency order [`rustc-rayon v0.5.1`](rust-lang/rustc-rayon#14) added `indexmap` implementations that will allow `indexmap` to drop its own "internal-only" implementations. (This is separate from `indexmap`'s implementation for normal `rayon`.)
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Currently,
indexmaphas an optional "internal only" dependency onrustc-rayonto implement parallel iterator support for use in the compiler. This PR flips that around to haverustc-rayonimplements those parallel iterators, soindexmapdoesn't need to bother with this relatively niche use-case. If this is accepted and published, I intend to remove that "internal" dependency.These implementations are all straightforward with the
SliceAPI:impl<'a, K, V, S> IntoParallelIterator for &'a IndexMap<K, V, S>impl<'a, K, V, S> IntoParallelIterator for &'a mut IndexMap<K, V, S>impl<'a, T, S> IntoParallelIterator for &'a IndexSet<T, S>However,
indexmap/rustc-rayonalso had by-valueIntoParallelIteratorimplementations that are not feasible without direct access to their storage. Nothing in the compiler is currently using that though, so I think it's ok to drop it.