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 buf = StringBuffer("CallOnceResultTypeError: ");

  buf.write("The closure did not return a result of type '$R', ");
  buf.writeln("but of type ${_result.runtimeType}.");

  buf.writeln("The closure is: '${_closure.runtimeType}'\n");

  buf.writeln(
    CallOnceError._argsToString(_positionalArguments, _namedArguments),
  );

  return buf.toString();
}