visitAsExpression method

Implementation

@override
Object? visitAsExpression(SAsExpression node) {
  final value = node.expression!.accept<Object?>(this);
  final result = _tryCast(value, node.type);
  if (!identical(result, _castFailed)) return result;
  final typeDesc = _castTypeDescription(node.type);
  final valueDesc = value?.runtimeType.toString() ?? 'Null';
  throw D4rtTypeError(
    "Cast failed with 'as' : value of type $valueDesc cannot be cast to $typeDesc",
  );
}