Make is_useful handle empty types properly

2016-11-29 15:10:26 +08:00
parent 9ad20442e8
commit bcdbe942e1
24 changed files with 246 additions and 85 deletions
--- a/src/librustc_lint/lib.rs
+++ b/src/librustc_lint/lib.rs
@@ -165,6 +165,7 @@ pub fn register_builtins(store: &mut lint::LintStore, sess: Option<&Session>) {
                    DEAD_CODE,
                    UNUSED_MUT,
                    UNREACHABLE_CODE,
+                    UNREACHABLE_PATTERNS,
                    UNUSED_MUST_USE,
                    UNUSED_UNSAFE,
                    PATH_STATEMENTS,