counting-stream? ( object -- ? )

Vocabulary

io.streams.counting

Inputs and outputs

object	an object
?	a boolean

Word description

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

Definition

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

IN: io.streams.counting

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