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Auto merge of #115694 - clarfonthey:std-hash-private, r=dtolnay

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Add `std:#️⃣:{DefaultHasher, RandomState}` exports (needs FCP)

This implements rust-lang/libs-team#267 to move the libstd hasher types to `std::hash` where they belong, instead of `std::collections::hash_map`.

<details><summary>The below no longer applies, but is kept for clarity.</summary>
This is a small refactor for #27242, which moves the definitions of `RandomState` and `DefaultHasher` into `std::hash`, but in a way that won't be noticed in the public API.

I've opened rust-lang/libs-team#267 as a formal ACP to move these directly into the root of `std::hash`, but for now, they're at least separated out from the collections code in a way that will make moving that around easier.

I decided to simply copy the rustdoc for `std::hash` from `core::hash` since I think it would be ideal for the two to diverge longer-term, especially if the ACP is accepted. However, I would be willing to factor them out into a common markdown document if that's preferred.
</details>
This commit is contained in:
bors 2023-11-11 21:12:20 +00:00
commit 2c1b65ee14
27 changed files with 308 additions and 232 deletions
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3
compiler/rustc_middle/src/ty/error.rs
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@ -7,8 +7,7 @@ use rustc_hir::def_id::DefId;
use rustc_span::symbol::Symbol;
use rustc_target::spec::abi;
use std::borrow::Cow;
use std::collections::hash_map::DefaultHasher;
use std::hash::{Hash, Hasher};
use std::hash::{DefaultHasher, Hash, Hasher};
use std::path::PathBuf;
#[derive(Clone, Copy, Debug, PartialEq, Eq, TypeFoldable, TypeVisitable)]