Polish

Author: blyxyas

compiler/rustc_lint/src/late.rs

@@ -433,12 +433,10 @@ fn late_lint_crate<'tcx>(tcx: TyCtxt<'tcx>) {
         LintPass::get_lints(pass).iter().any(|&lint| hashmap.contains(&LintId::of(lint)))
     }).collect();
 
-    // let mut passes: Vec<std::boxed::Box<dyn LateLintPass<'tcx>>> = passes
-    //     .into_iter()
-    //     .filter(|pass| {
-    //         LintPass::get_lints(pass).iter().any(|&lint| )
-    //     })
-    //     .collect();
+    // filtered_passes may be empty in case of `#[allow(all)]`
+    if filtered_passes.is_empty() {
+        return;
+    }
 
     let pass = RuntimeCombinedLateLintPass { passes: &mut filtered_passes[..] };
     late_lint_crate_inner(tcx, context, pass);

compiler/rustc_lint/src/levels.rs

@@ -162,19 +162,11 @@ pub fn lints_that_can_emit(
 ) -> Vec<LintId> {
     let store = unerased_lint_store(&tcx.sess);
 
-    // let mut builder = LintLevelsBuilder {
-    //     sess: tcx.sess,
-    //     features: tcx.features(),
-    //     provider: 
-    //     warn_about_weird_lints: false,
-    //     store,
-    //     registered_tools: &tcx.registered_tools(()),
-    // };
     let specs = tcx.shallow_lint_levels_on(hir::CRATE_HIR_ID.owner);
     let lints = store.get_lints();
 
     let mut hashmap: Vec<LintId> = Vec::new();
-    hashmap.reserve((lints.len() >> 1) * usize::from(tcx.sess.opts.lint_cap.is_some())); // Avoid allocations, it's better to 
+    hashmap.reserve((lints.len() >> 1) * usize::from(tcx.sess.opts.lint_cap.is_some())); // Avoid allocations
 
     for &lint in lints {
         let lint_id = LintId::of(lint);

compiler/rustc_lint/src/lib.rs

@@ -137,9 +137,6 @@ pub fn provide(providers: &mut Providers) {
 }
 
 fn lint_mod(tcx: TyCtxt<'_>, module_def_id: LocalModDefId) {
-    if let Some(lint_cap) = tcx.sess.opts.lint_cap && lint_cap == Level::Allow {
-        return;
-    }
     late_lint_mod(tcx, module_def_id, BuiltinCombinedModuleLateLintPass::new());
 }