feat: add codegen types

src/types/graphql/fragment-masking.ts

@@ -0,0 +1,40 @@
+import { TypedDocumentNode as DocumentNode } from '@graphql-typed-document-node/core';
+
+
+export type FragmentType<TDocumentType extends DocumentNode<any, any>> = TDocumentType extends DocumentNode<
+  infer TType,
+  any
+>
+  ? TType extends { ' $fragmentName'?: infer TKey }
+    ? TKey extends string
+      ? { ' $fragmentRefs'?: { [key in TKey]: TType } }
+      : never
+    : never
+  : never;
+
+// return non-nullable if `fragmentType` is non-nullable
+export function useFragment<TType>(
+  _documentNode: DocumentNode<TType, any>,
+  fragmentType: FragmentType<DocumentNode<TType, any>>
+): TType;
+// return nullable if `fragmentType` is nullable
+export function useFragment<TType>(
+  _documentNode: DocumentNode<TType, any>,
+  fragmentType: FragmentType<DocumentNode<TType, any>> | null | undefined
+): TType | null | undefined;
+// return array of non-nullable if `fragmentType` is array of non-nullable
+export function useFragment<TType>(
+  _documentNode: DocumentNode<TType, any>,
+  fragmentType: ReadonlyArray<FragmentType<DocumentNode<TType, any>>>
+): ReadonlyArray<TType>;
+// return array of nullable if `fragmentType` is array of nullable
+export function useFragment<TType>(
+  _documentNode: DocumentNode<TType, any>,
+  fragmentType: ReadonlyArray<FragmentType<DocumentNode<TType, any>>> | null | undefined
+): ReadonlyArray<TType> | null | undefined
+export function useFragment<TType>(
+  _documentNode: DocumentNode<TType, any>,
+  fragmentType: FragmentType<DocumentNode<TType, any>> | ReadonlyArray<FragmentType<DocumentNode<TType, any>>> | null | undefined
+): TType | ReadonlyArray<TType> | null | undefined {
+  return fragmentType as any
+}