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| author | Camille GILLOT <gillot.camille@gmail.com> | 2020-11-25 23:04:38 +0100 |
|---|---|---|
| committer | Camille GILLOT <gillot.camille@gmail.com> | 2021-03-09 19:09:34 +0100 |
| commit | 4bb07bedf5a5eae0e97ef0b3ab238cc64ace3323 (patch) | |
| tree | 9d145484995b8dfc825af06db8a74a55858e319e /compiler/rustc_lint/src | |
| parent | 8e816056a5a440ca789f543481c8478514c35de6 (diff) | |
| download | rust-4bb07bedf5a5eae0e97ef0b3ab238cc64ace3323.tar.gz rust-4bb07bedf5a5eae0e97ef0b3ab238cc64ace3323.zip | |
Visit attributes in one go.
Diffstat (limited to 'compiler/rustc_lint/src')
| -rw-r--r-- | compiler/rustc_lint/src/unused.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/rustc_lint/src/unused.rs b/compiler/rustc_lint/src/unused.rs index 997b9136320..67946dfb292 100644 --- a/compiler/rustc_lint/src/unused.rs +++ b/compiler/rustc_lint/src/unused.rs @@ -406,6 +406,8 @@ impl<'tcx> LateLintPass<'tcx> for UnusedAttributes { if !cx.sess().is_attr_used(attr) { debug!("emitting warning for: {:?}", attr); cx.struct_span_lint(UNUSED_ATTRIBUTES, attr.span, |lint| { + // Mark as used to avoid duplicate warnings. + cx.sess().mark_attr_used(attr); lint.build("unused attribute").emit() }); // Is it a builtin attribute that must be used at the crate level? |