3 files changed, 7 insertions, 2 deletions
diff --git a/src/new_fields/Doc.ts b/src/new_fields/Doc.ts
index b2863c632..70dd8361b 100644
--- a/src/new_fields/Doc.ts
+++ b/src/new_fields/Doc.ts
@@ -29,6 +29,11 @@ const SelfProxy = Symbol("SelfProxy");
 export const WidthSym = Symbol("Width");
 export const HeightSym = Symbol("Height");
 
+export function DocListCast(field: FieldResult) {
+    const list = Cast(field, listSpec(Doc))
+    return list ? Promise.all(list) : Promise.resolve(undefined);
+}
+
 @Deserializable("doc").withFields(["id"])
 export class Doc extends RefField {
     constructor(id?: FieldId, forceSave?: boolean) {
diff --git a/src/new_fields/List.ts b/src/new_fields/List.ts
index 213ed21aa..5aba64406 100644
--- a/src/new_fields/List.ts
+++ b/src/new_fields/List.ts
@@ -236,5 +236,5 @@ class ListImpl<T extends Field> extends ObjectField {
 
     private [Self] = this;
 }
-export type List<T extends Field> = ListImpl<T> & T[];
+export type List<T extends Field> = ListImpl<T> & (T | (T extends RefField ? Promise<T> : never))[];
 export const List: { new <T extends Field>(fields?: T[]): List<T> } = ListImpl as any;
 \ No newline at end of file
diff --git a/src/new_fields/Types.ts b/src/new_fields/Types.ts
index 60f08dc90..c07d38786 100644
--- a/src/new_fields/Types.ts
+++ b/src/new_fields/Types.ts
@@ -1,4 +1,4 @@
-import { Field, Opt, FieldResult } from "./Doc";
+import { Field, Opt, FieldResult, Doc } from "./Doc";
 import { List } from "./List";
 
 export type ToType<T extends ToConstructor<Field> | ListSpec<Field>> =