when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. Pubspec pubspec,
    2. DpkConfig dpkConfig,
    3. Scripts? scripts,
    4. String workingDirectory,
    5. String? workspaceRoot,
    )
)

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( Pubspec pubspec,  DpkConfig dpkConfig,  Scripts? scripts,  String workingDirectory,  String? workspaceRoot)  $default,) {final _that = this;
switch (_that) {
case _ConfigData():
return $default(_that.pubspec,_that.dpkConfig,_that.scripts,_that.workingDirectory,_that.workspaceRoot);case _:
  throw StateError('Unexpected subclass');

}
}