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() {
  if (isLiteralMatcher) {
    return literal ?? "";
  }

  if (isVariable) {
    return variableName ?? "";
  }

  if (hasRegularExpression) {
    return "(${matcher!.pattern})";
  }

  return "*";
}