operator []= method

@override void operator []=(Object identifier, E value)

Sets the value assocaited with identifier to value.

The identifier must be an index (int) or a label (String).

A RangeError will be thrown if the identifier isn't a valid index, or a StateError will be thrown if isn't a valid label.

Implementation

@override
void operator []=(Object identifier, E value) {
  assert(identifier is int || identifier is String);

  if (identifier is String) {
    if (!_labels.contains(identifier)) {
      throw StateError('The provided [identifier] isn\'t '
          'associated with any element in this list.');
    }
    elements[_labels.indexOf(identifier)] = value;
    return;
  }

  elements[identifier as int] = value;
}