refactor: Add #[deny(unused)] (#10997)

Author: bvanjoi

.changeset/polite-items-check.md

@@ -0,0 +1,9 @@
+---
+swc_ecma_ast: patch
+swc_ecma_lexer: patch
+swc_ecma_minifier: patch
+swc_ecma_transforms_optimization: patch
+swc_ecma_usage_analyzer: patch
+---
+
+refactor: deny unused

crates/swc_ecma_ast/src/list.rs

@@ -1,4 +1,3 @@
-#![allow(unused)]
 #![allow(non_upper_case_globals)]
 use bitflags::bitflags;
 

crates/swc_ecma_lexer/src/token.rs

@@ -35,7 +35,6 @@ macro_rules! define_known_ident {
  ),*
  }
 
- #[allow(unused)]
  #[macro_export]
  macro_rules! known_ident_token {
  $(
@@ -47,7 +46,6 @@ macro_rules! define_known_ident {
  )*
  }
 
- #[allow(unused)]
  #[macro_export]
  macro_rules! known_ident {
  $(
@@ -56,7 +54,6 @@ macro_rules! define_known_ident {
  };
  )*
  }
- #[allow(unused)]
  #[macro_export]
  macro_rules! ident_like {
  $(

crates/swc_ecma_minifier/src/compress/optimize/inline.rs

@@ -804,9 +804,8 @@ impl Optimizer<'_> {
  }
  }
 
- #[allow(unused)]
  match &decl {
- Decl::Class(c) => {
+ Decl::Class(_) => {
  if self.options.inline != 3
  || self.options.keep_classnames
  || self.mangle_options.is_some_and(|v| v.keep_class_names)
@@ -822,7 +821,7 @@ impl Optimizer<'_> {
  c.ident.ctxt
  );
  }
- Decl::Fn(f) => {
+ Decl::Fn(_) => {
  if self.options.keep_fnames
  || self.mangle_options.is_some_and(|v| v.keep_fn_names)
  {

crates/swc_ecma_transforms_optimization/src/debug.rs

@@ -1,7 +1,5 @@
 #![allow(unused)]
 
-use std::{fmt::Debug, mem::forget};
-
 use swc_ecma_ast::*;
 use swc_ecma_visit::{noop_visit_type, Visit, VisitWith};
 
@@ -17,7 +15,7 @@ where
 
 #[cfg(debug_assertions)]
 struct Ctx<'a> {
- v: &'a dyn Debug,
+ v: &'a dyn std::fmt::Debug,
 }
 
 #[cfg(debug_assertions)]
@@ -36,7 +34,7 @@ impl Visit for AssertValid {
  fn visit_expr(&mut self, n: &Expr) {
  let ctx = Ctx { v: n };
  n.visit_children_with(self);
- forget(ctx);
+ std::mem::forget(ctx);
  }
 
  #[cfg(debug_assertions)]
@@ -58,7 +56,7 @@ impl Visit for AssertValid {
  fn visit_stmt(&mut self, n: &Stmt) {
  let ctx = Ctx { v: n };
  n.visit_children_with(self);
- forget(ctx);
+ std::mem::forget(ctx);
  }
 
  #[cfg(debug_assertions)]

crates/swc_ecma_usage_analyzer/src/alias/mod.rs

@@ -154,7 +154,6 @@ where
 }
 
 pub struct InfectionCollector {
- #[allow(unused)]
  config: AliasConfig,
  unresolved_ctxt: Option<SyntaxContext>,