when<TResult extends Object?> method
- @optionalTypeArgs
A switch
-like method, using callbacks.
As opposed to map
, this offers destructuring.
It is equivalent to doing:
switch (sealedClass) {
case Subclass(:final field):
return ...;
case Subclass2(:final field2):
return ...;
}
Implementation
@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( String topic, int expiry, Relay relay, bool active, List<String>? methods, PairingMetadata? peerMetadata) $default,) {final _that = this;
switch (_that) {
case _PairingInfo():
return $default(_that.topic,_that.expiry,_that.relay,_that.active,_that.methods,_that.peerMetadata);}
}