Migrate usefulness.rs

1 files changed, 14 insertions, 0 deletions

diff --git a/compiler/rustc_mir_build/src/errors.rs b/compiler/rustc_mir_build/src/errors.rs
index 6bb15730b00..e15da5bb9ce 100644
--- a/compiler/rustc_mir_build/src/errors.rs
+++ b/compiler/rustc_mir_build/src/errors.rs
@@ -685,3 +685,17 @@ pub struct Overlap<'tcx> {
     pub span: Span,
     pub range: Pat<'tcx>,
 }
+
+#[derive(LintDiagnostic)]
+#[diag(mir_build_non_exhaustive_omitted_pattern)]
+#[help]
+#[note]
+pub(crate) struct NonExhaustiveOmittedPattern<'tcx> {
+    pub scrut_ty: Ty<'tcx>,
+    #[label]
+    pub uncovered: Span,
+    pub count: usize,
+    pub witness_1: Pat<'tcx>,
+    pub witness_2: Pat<'tcx>,
+    pub witness_3: Pat<'tcx>,
+}