Handbook
Glossary
invalid-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
invalid-duplex-stream
class.
Definition
USING:
classes.tuple.private
kernel
slots.private
;
IN:
io.streams.duplex
:
invalid-duplex-stream?
( object -- ? )
dup
tuple?
[
layout-of
7
slot
\
invalid-duplex-stream
eq?
]
[
drop
f
]
if
;