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