perf(linter): filter out rules which have no relevant node types in file

Author: camchenry

crates/oxc_linter/src/lib.rs

@@ -139,7 +139,24 @@ impl Linter {
 
         let rules = rules
             .iter()
-            .filter(|(rule, _)| rule.should_run(&ctx_host) && !rule.is_tsgolint_rule())
+            .filter(|(rule, _)| {
+                if !rule.should_run(&ctx_host) {
+                    return false;
+                }
+                // Skip tsgolint rules in Rust linter
+                if rule.is_tsgolint_rule() {
+                    return false;
+                }
+                // Skip rules that only run on nodes that this file does not contain
+                let (ast_types, all_types, only_runs_on_nodes) = rule.types_info();
+                if !all_types
+                    && only_runs_on_nodes
+                    && !ctx_host.semantic().nodes().contains_any(ast_types)
+                {
+                    return false;
+                }
+                true
+            })
             .map(|(rule, severity)| (rule, Rc::clone(&ctx_host).spawn(rule, *severity)));
 
         let semantic = ctx_host.semantic();
@@ -181,7 +198,7 @@ impl Linter {
                 // 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) {
-                    let (ast_types, all_types) = rule.types_info();
+                    let (ast_types, all_types, _) = rule.types_info();
                     if all_types {
                         rules_any_ast_type.push((rule, ctx));
                     } else {
@@ -227,7 +244,7 @@ impl Linter {
 
                 // For smaller files, benchmarking showed it was faster to iterate over all rules and just check the
                 // node types as we go, rather than pre-bucketing rules by AST node type and doing extra allocations.
-                let (ast_types, all_types) = rule.types_info();
+                let (ast_types, all_types, _) = rule.types_info();
                 if all_types {
                     for node in semantic.nodes() {
                         rule.run(node, ctx);

crates/oxc_linter/src/rule.rs

@@ -71,9 +71,12 @@ pub trait RuleRunner: Rule {
     const NODE_TYPES: &AstTypesBitset;
     /// `true` if codegen can't figure out what node types rule acts on
     const ANY_NODE_TYPE: bool;
+    /// `true` if this rule only has a `run` implementation and does not implement
+    /// `run_on_symbol`, `run_once`, or `run_on_jest_node`.
+    const ONLY_RUNS_ON_NODES: bool = false;
 
-    fn types_info(&self) -> (&'static AstTypesBitset, bool) {
-        (Self::NODE_TYPES, Self::ANY_NODE_TYPE)
+    fn types_info(&self) -> (&'static AstTypesBitset, bool, bool) {
+        (Self::NODE_TYPES, Self::ANY_NODE_TYPE, Self::ONLY_RUNS_ON_NODES)
     }
 }
 pub trait RuleMeta {
@@ -416,7 +419,7 @@ mod test {
         rule: &R,
         node_types: &[oxc_ast::AstType],
     ) {
-        let (types, _) = rule.types_info();
+        let (types, _, _) = rule.types_info();
         assert!(!R::ANY_NODE_TYPE, "{} should not have ANY_NODE_TYPE set to true", R::NAME);
         for node_type in node_types {
             assert!(