mirror of
https://github.com/hanzoai/react.git
synced 2026-09-24 17:02:27 +00:00
BoshenandGitHub
8e28314c42
Swaps the default hashers across the Rust compiler crates for rustc-hash's faster `FxHasher`. ## Why `FxHasher` is a simple, fast, non-cryptographic hasher. std's default (SipHash) is DoS-resistant but heavy — the compiler keys maps/sets almost entirely on small integer IDs (`IdentifierId`, `BlockId`, `ScopeId`, …) where that protection buys nothing. Switching gives: - **Performance** — faster hashing on the hot ID-keyed maps/sets used throughout the passes. - **Slight binary size reduction** — drops the heavy SipHash hasher pulled in by std's `HashMap`/`HashSet`. ## Changes - `std::collections::HashMap`/`HashSet` → `rustc_hash::FxHashMap`/`FxHashSet` - `indexmap` `IndexMap`/`IndexSet` now use `FxBuildHasher`, inlined as `IndexMap<K, V, FxBuildHasher>` (no `FxIndexMap` type aliases) - `rustc-hash = "2"` added to all 12 crate manifests - `rustc_hash`/`indexmap` imports consolidated into single brace imports at the top of each file The change is serde-neutral: `FxHashMap` and `IndexMap<_, _, FxBuildHasher>` serialize to byte-identical JSON, and `IndexMap` keeps insertion order. `cargo check`, `cargo fmt --check`, and `cargo test` all pass with no warnings.
13 lines
380 B
TOML
13 lines
380 B
TOML
[package]
|
|
name = "react_compiler_optimization"
|
|
version = "0.1.0"
|
|
edition = "2024"
|
|
|
|
[dependencies]
|
|
react_compiler_diagnostics = { path = "../react_compiler_diagnostics" }
|
|
react_compiler_hir = { path = "../react_compiler_hir" }
|
|
react_compiler_lowering = { path = "../react_compiler_lowering" }
|
|
react_compiler_ssa = { path = "../react_compiler_ssa" }
|
|
indexmap = "2"
|
|
rustc-hash = "2"
|