Function mergeParentFlags

src/core/batch.ts:205–217

(
  parentFlags: BatchFlags | Record<string, unknown> | undefined,
  childFlags: TFlags,
)

}

export function mergeParentFlags<TFlags extends Record<string, unknown>>(
  parentFlags: BatchFlags | Record<string, unknown> | undefined,
  childFlags: TFlags,
): TFlags {
  const parentRecord = readBatchFlags(parentFlags) ?? {};
  const childRecord = childFlags as Record<string, unknown>;
  for (const key of INHERITED_PARENT_FLAG_KEYS) {
    if (childRecord[key] === undefined && parentRecord[key] !== undefined) {
      childRecord[key] = parentRecord[key];
    }
  }
  return childFlags;
}

// Phase 4 (agent-cost) batch-step elision. When a non-default response level is
// requested for the whole batch, INTERMEDIATE steps are forced to `digest` so a