Guid.parseString constructor

Guid.parseString(String guid)

Initializes a new instance of the Guid structure by using the value represented by the specified string.

If the guid does not contain a valid literal, optionally prefixed by a sign, a FormatException is thrown.

Instead of throwing and immediately catching the FormatException, instead use tryParseString to handle a parsing error.

Implementation

factory Guid.parseString(String guid) {
  if (guid.isEmpty) {
    throw FormatException('Value "$guid" is empty');
  }

  if (_Guid.isValidGUID(fromString: guid)) {
    return Guid._(GuidValue(guid, _Guid.parse(guid)));
  } else {
    throw FormatException('Value "$guid" is not a valid GUID');
  }
}