history? ( object -- ? )

Vocabulary

ui.tools.listener.history

Inputs and outputs

object	an object
?	a boolean

Word description

Tests if the object is an instance of the history class.

Definition

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

IN: ui.tools.listener.history

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