diff options
Diffstat (limited to 'src/libsyntax')
| -rw-r--r-- | src/libsyntax/ext/deriving/generic/mod.rs | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/libsyntax/ext/deriving/generic/mod.rs b/src/libsyntax/ext/deriving/generic/mod.rs index f8f63e94ee5..2986e968045 100644 --- a/src/libsyntax/ext/deriving/generic/mod.rs +++ b/src/libsyntax/ext/deriving/generic/mod.rs @@ -617,7 +617,13 @@ impl<'a> TraitDef<'a> { attr::mark_used(&attr); let opt_trait_ref = Some(trait_ref); let ident = ast_util::impl_pretty_name(&opt_trait_ref, Some(&*self_type)); - let mut a = vec![attr]; + let unused_qual = cx.attribute( + self.span, + cx.meta_list(self.span, + InternedString::new("allow"), + vec![cx.meta_word(self.span, + InternedString::new("unused_qualifications"))])); + let mut a = vec![attr, unused_qual]; a.extend(self.attributes.iter().cloned()); cx.item( self.span, |