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({int indent = 0}) {
final node = '${' ' * indent}/$name${data != null ? ' *' : ''}';
return [
node,
...children.entries
.map((e) => e.value.toString(indent: indent + 2))
.toList(),
].join('\n');
}