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 reasonStr = reason == null ? '' : ': $reason';
final str = '$runtimeType$reasonStr';
if (nestedException == null) {
return str;
}
if (nestedStackTrace == null) {
return '$str\n nested exception is: $nestedException';
}
return '$str\n nested exception is: $nestedException\n$nestedStackTrace';
}