toString method
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 sb = StringBuffer();
for (final entry in _args.entries) {
sb.write('${entry.key}: ${entry.value}');
}
if (_rest.isNotEmpty) {
sb.write('rest: ${_rest.join(' ')}');
}
return 'Args($sb)';
}