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-rw-r--r--compiler/rustc_builtin_macros/src/assert.rs3
1 files changed, 1 insertions, 2 deletions
diff --git a/compiler/rustc_builtin_macros/src/assert.rs b/compiler/rustc_builtin_macros/src/assert.rs
index 25181715540..5bfd8a2bf56 100644
--- a/compiler/rustc_builtin_macros/src/assert.rs
+++ b/compiler/rustc_builtin_macros/src/assert.rs
@@ -120,8 +120,7 @@ fn parse_assert<'a>(
         };
 
     if parser.token != token::Eof {
-        parser.expect_one_of(&[], &[])?;
-        unreachable!();
+        return parser.unexpected();
     }
 
     Ok(Assert { cond_expr, custom_message })