Function visitFieldTree

packages/forms/signals/compat/src/api/extract.ts:93–111

(
  field: FieldTree<unknown>,
  filter?: ExtractFilter,
)

}

function visitFieldTree(
  field: FieldTree<unknown>,
  filter?: ExtractFilter,
): RawValue<unknown> | DeepPartial<RawValue<unknown>> {
  const state = field();
  const value = state.value();

  const matchingChildren = extractChildren(field, value, filter);

  if (matchingChildren !== undefined || isContainerNode(field, value)) {
    return matchingChildren;
  }

  if (matchesFilter(state, filter)) {
    return value;
  }

  return undefined;
}

function isContainerNode(field: FieldTree<unknown>, value: unknown): boolean {
  return (