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-rw-r--r--compiler/rustc_mir_transform/src/errors.rs8
1 files changed, 8 insertions, 0 deletions
diff --git a/compiler/rustc_mir_transform/src/errors.rs b/compiler/rustc_mir_transform/src/errors.rs
index fa279ace431..8b309147c64 100644
--- a/compiler/rustc_mir_transform/src/errors.rs
+++ b/compiler/rustc_mir_transform/src/errors.rs
@@ -89,6 +89,14 @@ pub(crate) struct FnItemRef {
     pub ident: String,
 }
 
+#[derive(Diagnostic)]
+#[diag(mir_transform_exceeds_mcdc_test_vector_limit)]
+pub(crate) struct MCDCExceedsTestVectorLimit {
+    #[primary_span]
+    pub(crate) span: Span,
+    pub(crate) max_num_test_vectors: usize,
+}
+
 pub(crate) struct MustNotSupend<'a, 'tcx> {
     pub tcx: TyCtxt<'tcx>,
     pub yield_sp: Span,