duplex-stream? ( object -- ? )

Vocabulary

io.streams.duplex

Inputs and outputs

object	an object
?	a boolean

Word description

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

Definition

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

IN: io.streams.duplex

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