lib/graphql/language/parser.y in graphql-1.7.14 vs lib/graphql/language/parser.y in graphql-1.8.0.pre1

@@ -80,11 +80,12 @@
   default_value_opt:
       /* none */            { return nil }
     | EQUALS literal_value  { return val[1] }
 
   selection_set:
-      LCURLY selection_list RCURLY { return val[1] }
+      LCURLY RCURLY                { return [] }
+    | LCURLY selection_list RCURLY { return val[1] }
 
   selection_set_opt:
       /* none */    { return [] }
     | selection_set { return val[0] }
 
@@ -150,12 +151,16 @@
     | FRAGMENT
     | ON
     | operation_type
     | schema_keyword
 
+  name_list:
+      name             { return [make_node(:TypeName, name: val[0])] }
+    | name_list name   { val[0] << make_node(:TypeName, name: val[1]) }
+
   enum_value_definition:
-    enum_name directives_list_opt { return make_node(:EnumValueDefinition, name: val[0], directives: val[1], description: get_description(val[0]), position_source: val[0]) }
+    enum_name directives_list_opt { return make_node(:EnumValueDefinition, name: val[0], directives: val[1], description: get_description(val[0])) }
 
   enum_value_definitions:
       enum_value_definition                        { return [val[0]] }
     | enum_value_definitions enum_value_definition { return val[0] << val[1] }
 
@@ -300,25 +305,15 @@
         return make_node(:ObjectTypeDefinition, name: val[1], interfaces: val[2], directives: val[3], fields: val[5], description: get_description(val[0]), position_source: val[0])
       }
 
   implements_opt:
       /* none */ { return [] }
-    | IMPLEMENTS AMP interfaces_list { return val[2] }
-    | IMPLEMENTS interfaces_list { return val[1] }
-    | IMPLEMENTS legacy_interfaces_list { return val[1] }
+    | IMPLEMENTS name_list { return val[1] }
 
-  interfaces_list:
-      name                     { return [make_node(:TypeName, name: val[0], position_source: val[0])] }
-    | interfaces_list AMP name { val[0] << make_node(:TypeName, name: val[2], position_source: val[2]) }
-
-  legacy_interfaces_list:
-      name                        { return [make_node(:TypeName, name: val[0], position_source: val[0])] }
-    | legacy_interfaces_list name { val[0] << make_node(:TypeName, name: val[1], position_source: val[1]) }
-
   input_value_definition:
       name COLON type default_value_opt directives_list_opt {
-        return make_node(:InputValueDefinition, name: val[0], type: val[2], default_value: val[3], directives: val[4], description: get_description(val[0]), position_source: val[0])
+        return make_node(:InputValueDefinition, name: val[0], type: val[2], default_value: val[3], directives: val[4], description: get_description(val[0]))
       }
 
   input_value_definition_list:
       input_value_definition                             { return [val[0]] }
     | input_value_definition_list input_value_definition { val[0] << val[1] }
@@ -327,15 +322,14 @@
       /* none */ { return [] }
     | LPAREN input_value_definition_list RPAREN { return val[1] }
 
   field_definition:
       name arguments_definitions_opt COLON type directives_list_opt {
-        return make_node(:FieldDefinition, name: val[0], arguments: val[1], type: val[3], directives: val[4], description: get_description(val[0]), position_source: val[0])
+        return make_node(:FieldDefinition, name: val[0], arguments: val[1], type: val[3], directives: val[4], description: get_description(val[0]))
       }
 
   field_definition_list:
-    /* none */ { return [] }
-    | field_definition                       { return [val[0]] }
+      field_definition                       { return [val[0]] }
     | field_definition_list field_definition { val[0] << val[1] }
 
   interface_type_definition:
       INTERFACE name directives_list_opt LCURLY field_definition_list RCURLY {
         return make_node(:InterfaceTypeDefinition, name: val[1], directives: val[2], fields: val[4], description: get_description(val[0]), position_source: val[0])