Implement Debug for DefIdForest

rust-lang · Jan 16, 2021 · 0295237 · 0295237
1 parent 6417760
commit 0295237
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/compiler/rustc_middle/src/ty/inhabitedness/def_id_forest.rs b/compiler/rustc_middle/src/ty/inhabitedness/def_id_forest.rs
@@ -18,7 +18,7 @@ use DefIdForest::*;
 /// We store the minimal set of `DefId`s required to represent the whole set. If A and B are
 /// `DefId`s in the `DefIdForest`, and A is a parent of B, then only A will be stored. When this is
 /// used with `type_uninhabited_from`, there will very rarely be more than one `DefId` stored.
-#[derive(Clone, HashStable)]
+#[derive(Clone, HashStable, Debug)]
 pub enum DefIdForest {
     Empty,
     Single(DefId),