Handbook
Glossary
jpeg-color-info? ( object -- ? )
Vocabulary
images
.
jpeg
.
private
Inputs and outputs
object
an
object
?
a
boolean
Word description
Tests if the object is an instance of the
jpeg-color-info
class.
Definition
USING:
classes.tuple.private
kernel
slots.private
;
IN:
images.jpeg.private
:
jpeg-color-info?
( object -- ? )
dup
tuple?
[
layout-of
7
slot
\
jpeg-color-info
eq?
]
[
drop
f
]
if
;