Do not point at #[allow(_)] as the reason for compat lint triggering

Fix #121009.
2024-02-13 20:19:17 +00:00
parent eaff1af8fd
commit 24b52fd9df
8 changed files with 6 additions and 53 deletions
--- a/compiler/rustc_middle/src/lint.rs
+++ b/compiler/rustc_middle/src/lint.rs
@@ -207,6 +207,11 @@ pub fn explain_lint_level_source(
    err: &mut Diagnostic,
 ) {
    let name = lint.name_lower();
+    if let Level::Allow = level {
+        // Do not point at `#[allow(compat_lint)]` as the reason for a compatibility lint
+        // triggering. (#121009)
+        return;
+    }
    match src {
        LintLevelSource::Default => {
            err.note_once(format!("`#[{}({})]` on by default", level.as_str(), name));