infinite-stream-cursor? ( object -- ? )

Vocabulary

cursors

Inputs and outputs

object	an object
?	a boolean

Word description

Tests if the object is an instance of the infinite-stream-cursor class.

Definition

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

IN: cursors

: infinite-stream-cursor? ( object -- ? )
    dup tuple?
    [ layout-of 7 slot \ pusher-cursor eq? ] [ drop f ] if ;