Add a comment to code that confused me.

2015-02-28 13:31:27 +01:00 · 2015-02-28 13:31:27 +01:00 · 2a37f7f07c
commit 2a37f7f07c
parent 57e0248d34
1 changed files with 1 additions and 0 deletions
--- a/src/librustc_lint/builtin.rs
+++ b/src/librustc_lint/builtin.rs
@ -656,6 +656,7 @@ impl LintPass for UnusedAttributes {
    }

    fn check_attribute(&mut self, cx: &Context, attr: &ast::Attribute) {
+        // Note that check_name() marks the attribute as used if it matches.
        for &(ref name, ty) in KNOWN_ATTRIBUTES {
            match ty {
                AttributeType::Whitelisted