interface / interface always implements an abstract type

ardatan · Jan 6, 2018 · 3ea7904 · 3ea7904
1 parent 789e387
commit 3ea7904
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/stitching/delegateToSchema.ts b/src/stitching/delegateToSchema.ts
@@ -504,6 +504,11 @@ function implementsAbstractType(
     child instanceof GraphQLObjectType
   ) {
     return child.getInterfaces().indexOf(parent) !== -1;
+  } else if (
+    parent instanceof GraphQLInterfaceType &&
+    child instanceof GraphQLInterfaceType
+  ) {
+    return true
   } else if (
     parent instanceof GraphQLUnionType &&
     child instanceof GraphQLObjectType