Add TypedSchemaField type (#14733)

types/foundry/common/data/fields.d.ts

@@ -1087,6 +1087,31 @@ export class TypeDataField<
  migrateSource(sourceData: Record<string, unknown>, fieldData: Record<string, unknown>): void;
 }
 
+/** A subclass of [DataField]{@link DataField} which allows typed schemas. */
+export class TypedSchemaField<
+ TSourceProp extends Record<string, DataSchema | SchemaField<DataSchema> | abstract.DataModel>,
+ TModelProp extends DataSchema | SchemaField<DataSchema> | abstract.DataModel =
+ | DataSchema
+ | SchemaField<DataSchema>
+ | abstract.DataModel,
+ TRequired extends boolean = true,
+ TNullable extends boolean = false,
+ THasInitial extends boolean = false,
+> extends DataField<TSourceProp, TModelProp, TRequired, TNullable, THasInitial> {
+ /**
+ * @param types The different types this field can represent.
+ * @param [options] Options which configure the behavior of the field
+ * @param [context] Additional context which describes the field
+ */
+ constructor(
+ types: TSourceProp,
+ options?: DataFieldOptions<TSourceProp, TRequired, TNullable, THasInitial>,
+ context?: object,
+ );
+
+ protected override _cast(value?: unknown): MaybeSchemaProp<TSourceProp, TRequired, TNullable, THasInitial>;
+}
+
 // System utility types
 
 export type SourcePropFromDataField<T> =