diff options
Diffstat (limited to 'src/libsyntax')
| -rw-r--r-- | src/libsyntax/feature_gate.rs | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs index 83f5553a792..9aee2441a9d 100644 --- a/src/libsyntax/feature_gate.rs +++ b/src/libsyntax/feature_gate.rs @@ -1389,6 +1389,12 @@ impl<'a> Visitor<'a> for PostExpansionVisitor<'a> { } } + ast::ItemKind::Trait(ast::IsAuto::Yes, ..) => { + gate_feature_post!(&self, optin_builtin_traits, + i.span, + "auto traits are experimental and possibly buggy"); + } + ast::ItemKind::MacroDef(ast::MacroDef { legacy: false, .. }) => { let msg = "`macro` is experimental"; gate_feature_post!(&self, decl_macro, i.span, msg); |