X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=library%2Fproc_macro%2Fsrc%2Fbridge%2Fhandle.rs;h=00954107b7769c8af31d6d2c3e5f3a938716926c;hb=17e96879d8ea81ff9b4194ad6529df1a5784a70c;hp=7d6adda48ec6e4f21102937b9c49b810654fb316;hpb=52ee2a2738c957ca6fd54e97b4e090a266ba96ba;p=rust.git

diff --git a/library/proc_macro/src/bridge/handle.rs b/library/proc_macro/src/bridge/handle.rs
index 7d6adda48ec..00954107b77 100644
--- a/library/proc_macro/src/bridge/handle.rs
+++ b/library/proc_macro/src/bridge/handle.rs
@@ -1,11 +1,13 @@
 //! Server-side handles and storage for per-handle data.
 
-use std::collections::{BTreeMap, HashMap};
+use std::collections::BTreeMap;
 use std::hash::Hash;
 use std::num::NonZeroU32;
 use std::ops::{Index, IndexMut};
 use std::sync::atomic::{AtomicUsize, Ordering};
 
+use super::fxhash::FxHashMap;
+
 pub(super) type Handle = NonZeroU32;
 
 /// A store that associates values of type `T` with numeric handles. A value can
@@ -54,12 +56,12 @@ fn index_mut(&mut self, h: Handle) -> &mut T {
 /// Like `OwnedStore`, but avoids storing any value more than once.
 pub(super) struct InternedStore<T: 'static> {
     owned: OwnedStore<T>,
-    interner: HashMap<T, Handle>,
+    interner: FxHashMap<T, Handle>,
 }
 
 impl<T: Copy + Eq + Hash> InternedStore<T> {
     pub(super) fn new(counter: &'static AtomicUsize) -> Self {
-        InternedStore { owned: OwnedStore::new(counter), interner: HashMap::new() }
+        InternedStore { owned: OwnedStore::new(counter), interner: FxHashMap::default() }
     }
 
     pub(super) fn alloc(&mut self, x: T) -> Handle {