YamlNode _deepModify()

in lib/src/editor.dart [584:613]

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

  YamlNode _deepModify(YamlNode tree, Iterable<Object?> path,
      Iterable<Object?> subPath, YamlNode expectedNode) {
    RangeError.checkValueInInterval(subPath.length, 0, path.length);

    if (path.length == subPath.length) return expectedNode;

    final keyOrIndex = path.elementAt(subPath.length);

    if (tree is YamlList) {
      if (!isValidIndex(keyOrIndex, tree.length)) {
        throw PathError(path, subPath, tree);
      }

      return wrapAsYamlNode([...tree.nodes]..[keyOrIndex as int] = _deepModify(
          tree.nodes[keyOrIndex],
          path,
          path.take(subPath.length + 1),
          expectedNode));
    }

    if (tree is YamlMap) {
      return updatedYamlMap(
          tree,
          (nodes) => nodes[keyOrIndex] = _deepModify(nodes[keyOrIndex], path,
              path.take(subPath.length + 1), expectedNode));
    }

    /// Should not ever reach here.
    throw PathError(path, subPath, tree);
  }