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classes.algebra: make class= and only-classoid? use short-circuit logic.

db4
John Benediktsson 2012-04-18 12:00:24 -07:00
parent ef87f81022
commit 837b22336e
1 changed files with 2 additions and 2 deletions
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core/classes/algebra/algebra.factor
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@ -67,7 +67,7 @@ M: anonymous-complement valid-classoid? class>> valid-classoid? ;
M: object valid-classoid? drop f ;
: only-classoid? ( obj -- ? )
[ classoid? ] [ class? not ] bi and ;
dup classoid? [ class? not ] [ drop f ] if ;
: class<= ( first second -- ? )
class<=-cache get [ (class<=) ] 2cache ;
@ -80,7 +80,7 @@ M: object valid-classoid? drop f ;
} cond ;
: class= ( first second -- ? )
[ class<= ] [ swap class<= ] 2bi and ;
2dup class<= [ swap class<= ] [ 2drop f ] if ;
: class-not ( class -- complement )
class-not-cache get [ (class-not) ] cache ;