userMessageText function

String userMessageText(
  1. Object content
)

Flattens a user-message content (plain text or content blocks) to its text — the same fold every projection and preview uses. Non-text blocks collapse away; an empty list folds to the empty string.

Implementation

String userMessageText(Object content) {
  if (content is String) return content;
  if (content is! List) return '';
  return [
    for (final block in content)
      if (block is TextContent) block.text,
  ].join(' ');
}