rules: adds missing nil checking

graphql-go · Aug 5, 2017 · 24b3245 · 24b3245
1 parent 9216e93
commit 24b3245
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/rules_overlapping_fields_can_be_merged.go b/rules_overlapping_fields_can_be_merged.go
@@ -467,10 +467,10 @@ func (rule *overlappingFieldsCanBeMergedRule) getFieldsAndFragmentNames(parentTy
 					fieldName = selection.Name.Value
 				}
 				var fieldDef *FieldDefinition
-				if parentType, ok := parentType.(*Object); ok {
+				if parentType, ok := parentType.(*Object); ok && parentType != nil {
 					fieldDef, _ = parentType.Fields()[fieldName]
 				}
-				if parentType, ok := parentType.(*Interface); ok {
+				if parentType, ok := parentType.(*Interface); ok && parentType != nil {
 					fieldDef, _ = parentType.Fields()[fieldName]
 				}