promise-already-fulfilled? ( object -- ? )

Vocabulary

concurrency.promises

Inputs and outputs

object	an object
?	a boolean

Word description

Tests if the object is an instance of the promise-already-fulfilled class.

Definition

USING: classes.tuple.private kernel slots.private ;

IN: concurrency.promises

: promise-already-fulfilled? ( object -- ? )
    dup tuple?
    [ layout-of 7 slot \ promise-already-fulfilled eq? ]
    [ drop f ] if ;