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() {
// avoid circular references
final existing = _buffers[this];
if (existing != null) {
return 'BuildTree#$hashCode (circular)';
}
final sb = _buffers[this] = StringBuffer();
sb.writeln('BuildTree#$hashCode $inheritanceResolvers:');
const indent = ' ';
for (final child in children) {
sb.write('$indent${child.toString().replaceAll('\n', '\n$indent')}\n');
}
final str = sb.toString().trimRight();
_buffers[this] = null;
return str;
}