From 6a2b8270c99b3e44df09107df91bab1debbb711a Mon Sep 17 00:00:00 2001
From: Noratrieb <48135649+Noratrieb@users.noreply.github.com>
Date: Sun, 25 Aug 2024 00:32:25 +0200
Subject: [PATCH] Update rustc-hash to version 2

This brings in the new optimized algorithm that was shown to have small performance benefits for
rustc.
---
 Cargo.lock                 | 54 +++++++++++++++++++++-----------------
 Cargo.toml                 |  2 +-
 crates/hir-ty/src/lib.rs   |  7 ++---
 crates/ra-salsa/Cargo.toml |  2 +-
 4 files changed, 34 insertions(+), 31 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index da65d88049..951c7f8bba 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -73,7 +73,7 @@ dependencies = [
  "intern",
  "la-arena 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "lz4_flex",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "salsa",
  "semver",
  "span",
@@ -161,7 +161,7 @@ dependencies = [
  "expect-test",
  "intern",
  "oorandom",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "syntax",
  "syntax-bridge",
  "tt",
@@ -216,7 +216,7 @@ dependencies = [
  "chalk-derive",
  "chalk-ir",
  "chalk-solve",
- "rustc-hash",
+ "rustc-hash 1.1.0",
  "tracing",
 ]
 
@@ -232,7 +232,7 @@ dependencies = [
  "indexmap",
  "itertools",
  "petgraph",
- "rustc-hash",
+ "rustc-hash 1.1.0",
  "tracing",
 ]
 
@@ -513,7 +513,7 @@ dependencies = [
  "hir-ty",
  "intern",
  "itertools",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "smallvec",
  "span",
  "stdx",
@@ -547,7 +547,7 @@ dependencies = [
  "mbe",
  "ra-ap-rustc_abi",
  "ra-ap-rustc_parse_format",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "rustc_apfloat",
  "smallvec",
  "span",
@@ -577,7 +577,7 @@ dependencies = [
  "limit",
  "mbe",
  "parser",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "smallvec",
  "span",
  "stdx",
@@ -616,7 +616,7 @@ dependencies = [
  "ra-ap-rustc_abi",
  "ra-ap-rustc_index",
  "ra-ap-rustc_pattern_analysis",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "rustc_apfloat",
  "scoped-tls",
  "smallvec",
@@ -737,7 +737,7 @@ dependencies = [
  "parser",
  "profile",
  "rayon",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "span",
  "stdx",
  "syntax",
@@ -834,7 +834,7 @@ version = "0.0.0"
 dependencies = [
  "dashmap",
  "hashbrown",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "sptr",
  "triomphe",
 ]
@@ -1051,7 +1051,7 @@ dependencies = [
  "intern",
  "parser",
  "ra-ap-rustc_lexer",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "smallvec",
  "span",
  "stdx",
@@ -1345,7 +1345,7 @@ dependencies = [
  "indexmap",
  "intern",
  "paths",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "serde",
  "serde_json",
  "span",
@@ -1435,7 +1435,7 @@ dependencies = [
  "itertools",
  "la-arena 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "paths",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "semver",
  "serde",
  "serde_json",
@@ -1555,7 +1555,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "273d5f72926a58c7eea27aebc898d1d5b32d23d2342f692a94a2cf8746aa4a2f"
 dependencies = [
  "ra-ap-rustc_index",
- "rustc-hash",
+ "rustc-hash 1.1.0",
  "rustc_apfloat",
  "smallvec",
  "tracing",
@@ -1640,7 +1640,7 @@ dependencies = [
  "countme",
  "hashbrown",
  "memoffset",
- "rustc-hash",
+ "rustc-hash 1.1.0",
  "text-size",
 ]
 
@@ -1680,7 +1680,7 @@ dependencies = [
  "profile",
  "project-model",
  "rayon",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "scip",
  "semver",
  "serde",
@@ -1717,6 +1717,12 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
 
+[[package]]
+name = "rustc-hash"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "583034fd73374156e66797ed8e5b0d5690409c9226b22d87cb7f19821c05d152"
+
 [[package]]
 name = "rustc_apfloat"
 version = "0.2.1+llvm-462a31f5a5ab"
@@ -1746,7 +1752,7 @@ dependencies = [
  "oorandom",
  "parking_lot",
  "rand",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "salsa-macros",
  "smallvec",
  "tracing",
@@ -1898,7 +1904,7 @@ version = "0.0.0"
 dependencies = [
  "hashbrown",
  "la-arena 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "salsa",
  "stdx",
  "syntax",
@@ -1967,7 +1973,7 @@ dependencies = [
  "ra-ap-rustc_lexer",
  "rayon",
  "rowan",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "rustc_apfloat",
  "smol_str",
  "stdx",
@@ -1983,7 +1989,7 @@ version = "0.0.0"
 dependencies = [
  "intern",
  "parser",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "span",
  "stdx",
  "syntax",
@@ -2000,7 +2006,7 @@ dependencies = [
  "cfg",
  "hir-expand",
  "intern",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "span",
  "stdx",
  "test-utils",
@@ -2014,7 +2020,7 @@ dependencies = [
  "dissimilar",
  "paths",
  "profile",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "stdx",
  "text-size",
  "tracing",
@@ -2361,7 +2367,7 @@ dependencies = [
  "indexmap",
  "nohash-hasher",
  "paths",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "stdx",
  "tracing",
 ]
@@ -2374,7 +2380,7 @@ dependencies = [
  "notify",
  "paths",
  "rayon",
- "rustc-hash",
+ "rustc-hash 2.0.0",
  "stdx",
  "tracing",
  "vfs",
diff --git a/Cargo.toml b/Cargo.toml
index 17cefe941e..397c68319d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -136,7 +136,7 @@ process-wrap = { version = "8.0.2", features = ["std"] }
 pulldown-cmark-to-cmark = "10.0.4"
 pulldown-cmark = { version = "0.9.0", default-features = false }
 rayon = "1.8.0"
-rustc-hash = "1.1.0"
+rustc-hash = "2.0.0"
 semver = "1.0.14"
 serde = { version = "1.0.192", features = ["derive"] }
 serde_json = "1.0.108"
diff --git a/crates/hir-ty/src/lib.rs b/crates/hir-ty/src/lib.rs
index 649cf88bb8..70e580eeae 100644
--- a/crates/hir-ty/src/lib.rs
+++ b/crates/hir-ty/src/lib.rs
@@ -51,10 +51,7 @@ mod test_db;
 #[cfg(test)]
 mod tests;
 
-use std::{
-    collections::hash_map::Entry,
-    hash::{BuildHasherDefault, Hash},
-};
+use std::{collections::hash_map::Entry, hash::Hash};
 
 use base_db::ra_salsa::InternValueTrivial;
 use chalk_ir::{
@@ -245,7 +242,7 @@ impl MemoryMap {
         match self {
             MemoryMap::Empty => Ok(Default::default()),
             MemoryMap::Simple(m) => transform((&0, m)).map(|(addr, val)| {
-                let mut map = FxHashMap::with_capacity_and_hasher(1, BuildHasherDefault::default());
+                let mut map = FxHashMap::with_capacity_and_hasher(1, rustc_hash::FxBuildHasher);
                 map.insert(addr, val);
                 map
             }),
diff --git a/crates/ra-salsa/Cargo.toml b/crates/ra-salsa/Cargo.toml
index b81e780337..f8a3156fe4 100644
--- a/crates/ra-salsa/Cargo.toml
+++ b/crates/ra-salsa/Cargo.toml
@@ -17,7 +17,7 @@ indexmap = "2.1.0"
 lock_api = "0.4"
 tracing = "0.1"
 parking_lot = "0.12.1"
-rustc-hash = "1.0"
+rustc-hash = "2.0.0"
 smallvec = "1.0.0"
 oorandom = "11"
 triomphe = "0.1.11"