drop_tracking_mir: diagnose recursive generator.

2023-01-28 22:45:52 +00:00
parent 0fbfc3e769
commit 0916616fec
2 changed files with 11 additions and 0 deletions
--- a/compiler/rustc_hir_analysis/src/check/check.rs
+++ b/compiler/rustc_hir_analysis/src/check/check.rs
@@ -1511,6 +1511,14 @@ fn opaque_type_cycle_error(
                    {
                        label_match(interior_ty.ty, interior_ty.span);
                    }
+                    if tcx.sess.opts.unstable_opts.drop_tracking_mir
+                        && let DefKind::Generator = tcx.def_kind(closure_def_id)
+                    {
+                        let generator_layout = tcx.mir_generator_witnesses(closure_def_id);
+                        for interior_ty in &generator_layout.field_tys {
+                            label_match(interior_ty.ty, interior_ty.source_info.span);
+                        }
+                    }
                }
            }
        }