when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. List<ChatCompletionTokenLogprob>? content,
    2. List<ChatCompletionTokenLogprob>? refusal
    )
)

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(
          @JsonKey(includeIfNull: false)
          List<ChatCompletionTokenLogprob>? content,
          @JsonKey(includeIfNull: false)
          List<ChatCompletionTokenLogprob>? refusal)
      $default,
) {
  final _that = this;
  switch (_that) {
    case _ChatCompletionStreamResponseChoiceLogprobs():
      return $default(_that.content, _that.refusal);
    case _:
      throw StateError('Unexpected subclass');
  }
}