Switch to rustc-hash instead of fxhash

See typst/typst#6678 (comment)

Author: laurmaedje

Cargo.toml

@@ -14,11 +14,11 @@ keywords = ["incremental", "memoization", "tracked", "constraints"]
 
 [workspace.dependencies]
 comemo-macros = { version = "0.4.0", path = "macros" }
-fxhash = "0.2"
 once_cell = "1.18"
 parking_lot = "0.12"
 proc-macro2 = "1"
 quote = "1"
+rustc-hash = "2.1"
 serial_test = "3"
 siphasher = "1"
 syn = { version = "2", features = ["full"] }
@@ -42,8 +42,8 @@ testing = []
 
 [dependencies]
 comemo-macros = { workspace = true, optional = true }
-fxhash = { workspace = true }
 parking_lot = { workspace = true }
+rustc-hash = { workspace = true }
 siphasher = { workspace = true }
 
 [dev-dependencies]

src/accelerate.rs

@@ -1,6 +1,6 @@
 use std::sync::atomic::{AtomicUsize, Ordering};
 
-use fxhash::FxHashMap;
+use rustc_hash::FxHashMap;
 use parking_lot::{MappedRwLockReadGuard, Mutex, RwLock, RwLockReadGuard};
 
 /// The global list of currently alive accelerators.

src/cache.rs

@@ -1,8 +1,8 @@
 use std::sync::LazyLock;
 use std::sync::atomic::{AtomicUsize, Ordering};
 
-use fxhash::FxHashMap;
 use parking_lot::RwLock;
+use rustc_hash::FxHashMap;
 use siphasher::sip128::{Hasher128, SipHasher13};
 
 use crate::accelerate;

src/constraint.rs

@@ -2,8 +2,8 @@ use std::borrow::Cow;
 use std::collections::hash_map::Entry;
 use std::hash::Hash;
 
-use fxhash::FxHashMap;
 use parking_lot::RwLock;
+use rustc_hash::FxHashMap;
 
 use crate::accelerate;