Auto merge of #59288 - Centril:hir-if-to-match, r=oli-obk

[rust.git] / src / librustc_mir / hair / pattern / check_match.rs

diff --git a/src/librustc_mir/hair/pattern/check_match.rs b/src/librustc_mir/hair/pattern/check_match.rs
index 8c7155e1df351ed6417bb85eae7916de6aabb0d2..a1b2e6461e5ba24c2f4cf9c86a0161cc0fc94838 100644 (file)
--- a/src/librustc_mir/hair/pattern/check_match.rs
+++ b/src/librustc_mir/hair/pattern/check_match.rs
@@ -369,6 +369,7 @@ fn check_arms<'a, 'tcx>(
             match is_useful(cx, &seen, &v, LeaveOutWitness) {
                 NotUseful => {
                     match source {
+                        hir::MatchSource::IfDesugar { .. } => bug!(),
                         hir::MatchSource::IfLetDesugar { .. } => {
                             cx.tcx.lint_hir(
                                 lint::builtin::IRREFUTABLE_LET_PATTERNS,