[perf] use AHash for hashmap #449
Description
⭐ Suggestion
We can use ahash to improve HashMap performance. ast-grep does not need cryptographically good hash.
💻 Use Cases
Use this rule to find potential usages worth refactoring.
id: replace-hash
message: use ahash?
severity: info
language: Rust
rule:
pattern: use std::collections::HashMap;
not:
inside:
stopBy: end
pattern: mod test { $$$ }