promise-fulfilled? ( promise: promise -- ? )

Vocabulary

concurrency.promises

Inputs

promise

a promise

Outputs

?

a boolean

Word description

Tests if fulfill has previously been called on the promise, in which case ?promise will return immediately without blocking.

Definition

USING: accessors typed ;

IN: concurrency.promises

TYPED: promise-fulfilled? ( promise: promise -- ? )
    box>> occupied>> ;