Deprecate 'is_deprecated'

Replicates graphql/graphql-js@a86ffbb

Author: Cito

src/graphql/type/definition.py

@@ -550,6 +550,7 @@ def __copy__(self) -> "GraphQLField":  # pragma: no cover
 
     @property
     def is_deprecated(self) -> bool:
+        # this property is officially deprecated, but we still keep it here
         return self.deprecation_reason is not None
 
 
@@ -1261,6 +1262,7 @@ def __copy__(self) -> "GraphQLEnumValue":  # pragma: no cover
 
     @property
     def is_deprecated(self) -> bool:
+        # this property is officially deprecated, but we still keep it here
         return self.deprecation_reason is not None
 
 

src/graphql/type/introspection.py

@@ -291,7 +291,7 @@ def fields(type_, _info, includeDeprecated=False):
         if is_object_type(type_) or is_interface_type(type_):
             items = type_.fields.items()
             if not includeDeprecated:
-                return [item for item in items if not item[1].is_deprecated]
+                return [item for item in items if item[1].deprecation_reason is None]
             return list(items)
 
     @staticmethod
@@ -310,7 +310,7 @@ def enum_values(type_, _info, includeDeprecated=False):
         if is_enum_type(type_):
             items = type_.values.items()
             if not includeDeprecated:
-                return [item for item in items if not item[1].is_deprecated]
+                return [item for item in items if item[1].deprecation_reason is None]
             return items
 
     @staticmethod
@@ -344,7 +344,7 @@ def of_type(type_, _info):
         ),
         "isDeprecated": GraphQLField(
             GraphQLNonNull(GraphQLBoolean),
-            resolve=lambda item, _info: item[1].is_deprecated,
+            resolve=lambda item, _info: item[1].deprecation_reason is not None,
         ),
         "deprecationReason": GraphQLField(
             GraphQLString, resolve=lambda item, _info: item[1].deprecation_reason
@@ -415,7 +415,7 @@ def default_value(item, _info):
         ),
         "isDeprecated": GraphQLField(
             GraphQLNonNull(GraphQLBoolean),
-            resolve=lambda item, _info: item[1].is_deprecated,
+            resolve=lambda item, _info: item[1].deprecation_reason is not None,
         ),
         "deprecationReason": GraphQLField(
             GraphQLString, resolve=lambda item, _info: item[1].deprecation_reason

src/graphql/utilities/print_schema.py

@@ -258,11 +258,11 @@ def print_directive(directive: GraphQLDirective) -> str:
 
 
 def print_deprecated(field_or_enum_value: Union[GraphQLField, GraphQLEnumValue]) -> str:
-    if not field_or_enum_value.is_deprecated:
+    deprecation_reason = field_or_enum_value.deprecation_reason
+    if deprecation_reason is None:
         return ""
-    reason = field_or_enum_value.deprecation_reason
-    reason_ast = ast_from_value(reason, GraphQLString)
-    if not reason_ast or reason == DEFAULT_DEPRECATION_REASON:
+    reason_ast = ast_from_value(deprecation_reason, GraphQLString)
+    if not reason_ast or deprecation_reason == DEFAULT_DEPRECATION_REASON:
         return " @deprecated"
     return f" @deprecated(reason: {print_ast(reason_ast)})"