Feature gate trivial bounds

[rust.git] / src / librustc / traits / mod.rs

diff --git a/src/librustc/traits/mod.rs b/src/librustc/traits/mod.rs
index ca62b421b320d5d858ec7ca98ba4a65e2970e559..cfc4532a8f2c013dc730e89c2d9c42d96f8f97cb 100644 (file)
--- a/src/librustc/traits/mod.rs
+++ b/src/librustc/traits/mod.rs
@@ -243,6 +243,9 @@ pub enum ObligationCauseCode<'tcx> {
 
     /// Block implicit return
     BlockTailExpression(ast::NodeId),
+
+    /// #[feature(trivial_bounds)] is not enabled
+    TrivialBound,
 }
 
 #[derive(Clone, Debug, PartialEq, Eq, Hash)]