rustc-ap-rustc_data_structures 645.0.0

Automatically published version of the package `rustc_data_structures` in the rust-lang/rust repository from commit 834bc5650acf7019a53b409db68986857822812c The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish
Documentation 
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use std::hash::BuildHasherDefault;

pub use rustc_hash::{FxHashMap, FxHashSet, FxHasher};

pub type FxIndexMap<K, V> = indexmap::IndexMap<K, V, BuildHasherDefault<FxHasher>>;
pub type FxIndexSet<V> = indexmap::IndexSet<V, BuildHasherDefault<FxHasher>>;

#[macro_export]
macro_rules! define_id_collections {
    ($map_name:ident, $set_name:ident, $key:ty) => {
        pub type $map_name<T> = $crate::fx::FxHashMap<$key, T>;
        pub type $set_name = $crate::fx::FxHashSet<$key>;
    };
}