toString method

@override String toString()

A string representation of this object.

Some classes have a default textual representation, often paired with a static parse function (like int.parse). These classes will provide the textual representation as their string representation.

Other classes have no meaningful textual representation that a program will care about. Such classes will typically override toString to provide useful information when inspecting the object, mainly for debugging or logging.

Implementation

@override
String toString() {
  switch (_missingCase) {
    case _MissingCase.value:
      return 'ValueStream has no value. You should check ValueStream.hasValue '
          'before accessing ValueStream.value, or use ValueStream.valueOrNull instead.';
    case _MissingCase.error:
      return 'ValueStream has no error. You should check ValueStream.hasError '
          'before accessing ValueStream.error, or use ValueStream.errorOrNull instead.';
  }
}