Trait MapFn 

pub trait MapFn<R: Rt, E: UserEvent>:
    Debug
    + Default
    + Send
    + Sync
    + 'static {
    type Collection: MapCollection;

    const NAME: &str;

    // Required method
    fn finish(
        &mut self,
        slots: &[Slot<R, E>],
        a: &Self::Collection,
    ) -> Option<Value>;
}

Required Associated Constants

const NAME: &str

Required Associated Types

type Collection: MapCollection

Required Methods

fn finish( &mut self, slots: &[Slot<R, E>], a: &Self::Collection, ) -> Option<Value>

finish will be called when every lambda instance has produced a value for the updated array. Out contains the output of the predicate lambda for each index i, and a is the array. out and a are guaranteed to have the same length. out[i].cur is guaranteed to be Some.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors