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() {
  var result = StringBuffer();
  result.write('<<\n');
  result.write(' mode: ');
  result.write(mode);
  result.write('\n ecLevel: ');
  result.write(ecLevel);
  result.write('\n version: ');
  result.write(version);
  result.write('\n maskPattern: ');
  result.write(maskPattern);
  if (matrix == null) {
    result.write('\n matrix: null\n');
  } else {
    result.write('\n matrix:\n');
    result.write(matrix);
  }
  result.write('>>\n');
  return result.toString();
}