perf(es/lints): Make rules not parallel (#10772)

**Description:** Those are very slow in `rayon` mode

Author: kdy1

.changeset/polite-mayflies-dance.md

@@ -0,0 +1,5 @@
+---
+swc_ecma_lints: patch
+---
+
+perf(es/lints): Make rules not parallel

crates/swc_ecma_lints/src/rules/const_assign.rs

@@ -1,7 +1,6 @@
 use rustc_hash::FxHashMap;
 use swc_common::{errors::HANDLER, Span};
 use swc_ecma_ast::*;
-use swc_ecma_utils::parallel::{cpu_count, Parallel, ParallelExt};
 use swc_ecma_visit::{noop_visit_type, Visit, VisitWith};
 
 use crate::rule::Rule;
@@ -59,14 +58,6 @@ struct ConstAssign<'a> {
  is_pat_decl: bool,
 }
 
-impl Parallel for ConstAssign<'_> {
- fn create(&self) -> Self {
- *self
- }
-
- fn merge(&mut self, _: Self) {}
-}
-
 impl ConstAssign<'_> {
  fn check(&mut self, id: &Ident) {
  if self.is_pat_decl {
@@ -109,48 +100,6 @@ impl Visit for ConstAssign<'_> {
  self.check(&Ident::from(n));
  }
 
- fn visit_class_members(&mut self, members: &[ClassMember]) {
- self.maybe_par(cpu_count(), members, |v, member| {
- member.visit_with(v);
- });
- }
-
- fn visit_expr_or_spreads(&mut self, n: &[ExprOrSpread]) {
- self.maybe_par(cpu_count(), n, |v, n| {
- n.visit_with(v);
- });
- }
-
- fn visit_exprs(&mut self, exprs: &[Box<Expr>]) {
- self.maybe_par(cpu_count(), exprs, |v, expr| {
- expr.visit_with(v);
- });
- }
-
- fn visit_module_items(&mut self, items: &[ModuleItem]) {
- self.maybe_par(cpu_count(), items, |v, item| {
- item.visit_with(v);
- });
- }
-
- fn visit_opt_vec_expr_or_spreads(&mut self, n: &[Option<ExprOrSpread>]) {
- self.maybe_par(cpu_count(), n, |v, n| {
- n.visit_with(v);
- });
- }
-
- fn visit_prop_or_spreads(&mut self, n: &[PropOrSpread]) {
- self.maybe_par(cpu_count(), n, |v, n| {
- n.visit_with(v);
- });
- }
-
- fn visit_stmts(&mut self, stmts: &[Stmt]) {
- self.maybe_par(cpu_count(), stmts, |v, stmt| {
- stmt.visit_with(v);
- });
- }
-
  fn visit_update_expr(&mut self, n: &UpdateExpr) {
  n.visit_children_with(self);
 

crates/swc_ecma_lints/src/rules/no_dupe_args.rs

@@ -3,10 +3,7 @@ use std::collections::hash_map::Entry;
 use rustc_hash::FxHashMap;
 use swc_common::errors::HANDLER;
 use swc_ecma_ast::*;
-use swc_ecma_utils::{
- for_each_binding_ident,
- parallel::{cpu_count, Parallel, ParallelExt},
-};
+use swc_ecma_utils::for_each_binding_ident;
 use swc_ecma_visit::{noop_visit_type, Visit, VisitWith};
 
 use crate::rule::{visitor_rule, Rule};
@@ -18,14 +15,6 @@ pub fn no_dupe_args() -> Box<dyn Rule> {
 #[derive(Debug, Default)]
 struct NoDupeArgs;
 
-impl Parallel for NoDupeArgs {
- fn create(&self) -> Self {
- Self
- }
-
- fn merge(&mut self, _: Self) {}
-}
-
 #[cold]
 fn error(first: &BindingIdent, second: &BindingIdent) {
  HANDLER.with(|handler| {
@@ -112,57 +101,15 @@ impl Visit for NoDupeArgs {
  f.visit_children_with(self);
  }
 
- fn visit_class_members(&mut self, members: &[ClassMember]) {
- self.maybe_par(cpu_count(), members, |v, member| {
- member.visit_with(v);
- });
- }
-
  fn visit_constructor(&mut self, f: &Constructor) {
  check!(&f.params);
 
  f.visit_children_with(self);
  }
 
- fn visit_expr_or_spreads(&mut self, n: &[ExprOrSpread]) {
- self.maybe_par(cpu_count(), n, |v, n| {
- n.visit_with(v);
- });
- }
-
- fn visit_exprs(&mut self, exprs: &[Box<Expr>]) {
- self.maybe_par(cpu_count(), exprs, |v, expr| {
- expr.visit_with(v);
- });
- }
-
  fn visit_function(&mut self, f: &Function) {
  check!(&f.params);
 
  f.visit_children_with(self);
  }
-
- fn visit_module_items(&mut self, items: &[ModuleItem]) {
- self.maybe_par(cpu_count(), items, |v, item| {
- item.visit_with(v);
- });
- }
-
- fn visit_opt_vec_expr_or_spreads(&mut self, n: &[Option<ExprOrSpread>]) {
- self.maybe_par(cpu_count(), n, |v, n| {
- n.visit_with(v);
- });
- }
-
- fn visit_prop_or_spreads(&mut self, n: &[PropOrSpread]) {
- self.maybe_par(cpu_count(), n, |v, n| {
- n.visit_with(v);
- });
- }
-
- fn visit_stmts(&mut self, stmts: &[Stmt]) {
- self.maybe_par(cpu_count(), stmts, |v, stmt| {
- stmt.visit_with(v);
- });
- }
 }