void update()

in lib/src/editor.dart [235:274]

• 33 lines of code
• 5 McCabe index (conditional complexity)

  void update(Iterable<Object?> path, Object? value) {
    final valueNode = wrapAsYamlNode(value);

    if (path.isEmpty) {
      final start = _contents.span.start.offset;
      final end = getContentSensitiveEnd(_contents);
      final lineEnding = getLineEnding(_yaml);
      final edit = SourceEdit(
          start, end - start, yamlEncodeBlockString(valueNode, 0, lineEnding));

      return _performEdit(edit, path, valueNode);
    }

    final pathAsList = path.toList();
    final collectionPath = pathAsList.take(path.length - 1);
    final keyOrIndex = pathAsList.last;
    final parentNode = _traverse(collectionPath, checkAlias: true);

    if (parentNode is YamlList) {
      if (keyOrIndex is! int) {
        throw PathError(path, path, parentNode);
      }
      final expected = wrapAsYamlNode(
        [...parentNode.nodes]..[keyOrIndex] = valueNode,
      );

      return _performEdit(updateInList(this, parentNode, keyOrIndex, valueNode),
          collectionPath, expected);
    }

    if (parentNode is YamlMap) {
      final expectedMap =
          updatedYamlMap(parentNode, (nodes) => nodes[keyOrIndex] = valueNode);
      return _performEdit(updateInMap(this, parentNode, keyOrIndex, valueNode),
          collectionPath, expectedMap);
    }

    throw PathError.unexpected(
        path, 'Scalar $parentNode does not have key $keyOrIndex');
  }