pub trait ProducerCallback<T> {
    type Output;

    // Required method
    fn callback<P>(self, producer: P) -> Self::Output
       where P: Producer<Item = T>;
Expand description

The ProducerCallback trait is a kind of generic closure, analogous to FnOnce. See the corresponding section in the plumbing README for more details.

Required Associated Types§


type Output

The type of value returned by this callback. Analogous to Output from the FnOnce trait.

Required Methods§


fn callback<P>(self, producer: P) -> Self::Outputwhere P: Producer<Item = T>,

Invokes the callback with the given producer as argument. The key point of this trait is that this method is generic over P, and hence implementors must be defined for any producer.