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Introduce UnordMap, UnordSet, and UnordBag (see MCP 533)

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MCP 533: https://github.com/rust-lang/compiler-team/issues/533

Also, as an example, substitute UnordMap for FxHashMap in
used_trait_imports query result.
This commit is contained in:
Michael Woerister 2022-10-27 13:23:26 +00:00
parent 43dd3d514b
commit 9117ea9758
10 changed files with 400 additions and 12 deletions
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4
src/librustdoc/core.rs
View file

@ -1,6 +1,7 @@
use rustc_ast::NodeId;
use rustc_data_structures::fx::{FxHashMap, FxHashSet};
use rustc_data_structures::sync::{self, Lrc};
use rustc_data_structures::unord::UnordSet;
use rustc_errors::emitter::{Emitter, EmitterWriter};
use rustc_errors::json::JsonEmitter;
use rustc_feature::UnstableFeatures;
@ -288,8 +289,7 @@ pub(crate) fn create_config(
providers.typeck_item_bodies = |_, _| {};
// hack so that `used_trait_imports` won't try to call typeck
providers.used_trait_imports = |_, _| {
static EMPTY_SET: LazyLock<FxHashSet<LocalDefId>> =
LazyLock::new(FxHashSet::default);
static EMPTY_SET: LazyLock<UnordSet<LocalDefId>> = LazyLock::new(UnordSet::default);
&EMPTY_SET
};
// In case typeck does end up being called, don't ICE in case there were name resolution errors