rustc-ap-rustc_data_structures 503.0.0

Automatically published version of the package `rustc_data_structures` in the rust-lang/rust repository from commit 7d107613498c500699dcf89aab7231c28a8fa3af The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish
Documentation 
use std::hash::BuildHasherDefault;

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

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