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 buffer = StringBuffer();
buffer
..write("Node count: ")
..writeln(nodeCount)
..write("Edge count: ")
..writeln(edgeCount);
buffer.write("Nodes:");
for (final node in nodes) {
buffer
..writeln()
..write(node.index)
..write(': ')
..writeln(node);
}
return buffer.toString();
}