toString method

@override String toString()

A string representation of this object.

Some classes have a default textual representation, often paired with a static parse function (like int.parse). These classes will provide the textual representation as their string representation.

Other classes have no meaningful textual representation that a program will care about. Such classes will typically override toString to provide useful information when inspecting the object, mainly for debugging or logging.

Implementation

@override
String toString() {
  final buffer = StringBuffer();
  buffer.write("[");
  PathNode? node = this;
  while (node != null) {
    buffer.write("(");
    buffer.write("${node.originIndex.toString()}");
    buffer.write(",");
    buffer.write("${node.revisedIndex.toString()}");
    buffer.write(")");
    node = node.previousNode;
  }
  buffer.write("]");
  return buffer.toString();
}