bool contains(Element element)

Source

bool contains(Element element) {
  if (_allElements.isEmpty) {
    _allElements.addAll(allInstanceMethods.map((e) => e.element));
    _allElements.addAll(allInstanceProperties.map((e) => e.element));
    _allElements.addAll(allOperators.map((e) => e.element));
    _allElements.addAll(constructors.map((e) => e.element));
    _allElements.addAll(staticMethods.map((e) => e.element));
    _allElements.addAll(staticProperties.map((e) => e.element));
  }
  return _allElements.contains(element);
}