An EnumValueDefinition is not a TypeDefinition (fix #125)

Author: Cito

src/graphql/execution/values.py

@@ -3,6 +3,7 @@
 from ..error import GraphQLError
 from ..language import (
     DirectiveNode,
+    EnumValueDefinitionNode,
     ExecutableDefinitionNode,
     FieldNode,
     FieldDefinitionNode,
@@ -212,6 +213,7 @@ def get_argument_values(
 
 
 NodeWithDirective = Union[
+    EnumValueDefinitionNode,
     ExecutableDefinitionNode,
     FieldDefinitionNode,
     InputValueDefinitionNode,

src/graphql/language/ast.py

@@ -559,8 +559,12 @@ class EnumTypeDefinitionNode(TypeDefinitionNode):
     values: FrozenList["EnumValueDefinitionNode"]
 
 
-class EnumValueDefinitionNode(TypeDefinitionNode):
-    __slots__ = ()
+class EnumValueDefinitionNode(DefinitionNode):
+    __slots__ = "description", "name", "directives"
+
+    description: Optional[StringValueNode]
+    name: NameNode
+    directives: FrozenList[DirectiveNode]
 
 
 class InputObjectTypeDefinitionNode(TypeDefinitionNode):

tests/language/test_predicates.py

@@ -100,7 +100,6 @@ def check_type_system_definition_node():
             "directive_definition",
             "enum_type_definition",
             "enum_type_extension",
-            "enum_value_definition",
             "input_object_type_definition",
             "input_object_type_extension",
             "interface_type_definition",
@@ -120,7 +119,6 @@ def check_type_system_definition_node():
     def check_type_definition_node():
         assert filter_nodes(is_type_definition_node) == [
             "enum_type_definition",
-            "enum_value_definition",
             "input_object_type_definition",
             "interface_type_definition",
             "object_type_definition",