perf(linter): reduce indirection (#13574)

overlookmotel · overlookmotel · commit b81f081e399d · 2025-09-08T04:36:26.000Z
Follow-on after #13138, as per [this comment](#13138 (comment)). Previously `rules_by_ast_type` and `rules_any_ast_type` contained `&&RuleEnum`, which is unnecessary indirection. Store `&RuleEnum` instead.
diff --git a/crates/oxc_linter/src/lib.rs b/crates/oxc_linter/src/lib.rs
@@ -181,6 +181,7 @@ impl Linter {
                 let mut rules_any_ast_type = Vec::with_capacity(rules.len());
 
                 for (rule, ctx) in &rules {
+                    let rule = *rule;
                     // Collect node type information for rules. In large files, benchmarking showed it was worth
                     // collecting rules into buckets by AST node type to avoid iterating over all rules for each node.
                     if rule.should_run(&ctx_host) {
