source to be a
Any time the queue would produce an element that is not a
T, the element access will throw.
Any time a
T value is attempted stored into the adapted queue, the store will throw unless the value is also an instance of
If all accessed elements of
source are actually instances of
T, and if all elements stored into the returned queue are actually instance of
S, then the returned queue can be used as a
static Queue<T> castFrom<S, T>(Queue<S> source) => CastQueue<S, T>(source);
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.