Auto merge of rust-lang#7021 - camsteffen:7012, r=giraffate

Fix ICE rust-lang#7012

changelog: none

Fixes rust-lang#7012

Author: bors

clippy_lints/src/matches.rs

@@ -1046,16 +1046,18 @@ fn check_wild_enum_match(cx: &LateContext<'_>, ex: &Expr<'_>, arms: &[Arm<'_>])
                     path
                 },
                 PatKind::TupleStruct(path, patterns, ..) => {
-                    if arm.guard.is_none() && patterns.iter().all(|p| !is_refutable(cx, p)) {
-                        let id = cx.qpath_res(path, pat.hir_id).def_id();
-                        missing_variants.retain(|e| e.ctor_def_id != Some(id));
+                    if let Some(id) = cx.qpath_res(path, pat.hir_id).opt_def_id() {
+                        if arm.guard.is_none() && patterns.iter().all(|p| !is_refutable(cx, p)) {
+                            missing_variants.retain(|e| e.ctor_def_id != Some(id));
+                        }
                     }
                     path
                 },
                 PatKind::Struct(path, patterns, ..) => {
-                    if arm.guard.is_none() && patterns.iter().all(|p| !is_refutable(cx, p.pat)) {
-                        let id = cx.qpath_res(path, pat.hir_id).def_id();
-                        missing_variants.retain(|e| e.def_id != id);
+                    if let Some(id) = cx.qpath_res(path, pat.hir_id).opt_def_id() {
+                        if arm.guard.is_none() && patterns.iter().all(|p| !is_refutable(cx, p.pat)) {
+                            missing_variants.retain(|e| e.def_id != id);
+                        }
                     }
                     path
                 },

tests/ui/crashes/ice-7012.rs

@@ -0,0 +1,17 @@
+#![allow(clippy::all)]
+
+enum _MyOption {
+    None,
+    Some(()),
+}
+
+impl _MyOption {
+    fn _foo(&self) {
+        match self {
+            &Self::Some(_) => {},
+            _ => {},
+        }
+    }
+}
+
+fn main() {}