when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. String name,
    2. String command,
    3. List<String>? runInPackages,
    4. String? runHooksFrom,
    5. Map<String, String>? env,
    )
)

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 name,  String command,  List<String>? runInPackages,  String? runHooksFrom,  Map<String, String>? env)  $default,) {final _that = this;
switch (_that) {
case _Script():
return $default(_that.name,_that.command,_that.runInPackages,_that.runHooksFrom,_that.env);case _:
  throw StateError('Unexpected subclass');

}
}