map<TResult extends Object?> method

  1. @optionalTypeArgs
TResult map<TResult extends Object?>({
  1. required TResult openUrl(
    1. OpenUrlAction value
    ),
  2. required TResult sendMessage(
    1. SendMessageAction value
    ),
  3. required TResult callback(
    1. CallbackAction value
    ),
})

A switch-like method, using callbacks.

Callbacks receives the raw object, upcasted. It is equivalent to doing:

switch (sealedClass) {
  case final Subclass value:
    return ...;
  case final Subclass2 value:
    return ...;
}

Implementation

@optionalTypeArgs TResult map<TResult extends Object?>({required TResult Function( OpenUrlAction value)  openUrl,required TResult Function( SendMessageAction value)  sendMessage,required TResult Function( CallbackAction value)  callback,}){
final _that = this;
switch (_that) {
case OpenUrlAction():
return openUrl(_that);case SendMessageAction():
return sendMessage(_that);case CallbackAction():
return callback(_that);}
}