core: minor cleanups

core/arrays/arrays.factor

@@ -1,4 +1,4 @@
-! Copyright (C) 2005, 2008 Slava Pestov.
+! Copyright (C) 2005, 2010 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: accessors kernel kernel.private math math.private
 sequences sequences.private ;
@@ -9,24 +9,16 @@ M: array length length>> ; inline
 M: array nth-unsafe [ >fixnum ] dip array-nth ; inline
 M: array set-nth-unsafe [ >fixnum ] dip set-array-nth ; inline
 M: array resize resize-array ; inline
-
-: >array ( seq -- array ) { } clone-like ;
-
+M: array equal? over array? [ sequence= ] [ 2drop f ] if ;
 M: object new-sequence drop 0 <array> ; inline
-
 M: f new-sequence drop [ f ] [ 0 <array> ] if-zero ; inline
 
-M: array equal?
-    over array? [ sequence= ] [ 2drop f ] if ;
-
 INSTANCE: array sequence
 
+: >array ( seq -- array ) { } clone-like ;
 : 1array ( x -- array ) 1 swap <array> ; inline
-
 : 2array ( x y -- array ) { } 2sequence ; inline
-
 : 3array ( x y z -- array ) { } 3sequence ; inline
-
 : 4array ( w x y z -- array ) { } 4sequence ; inline
 
 PREDICATE: pair < array length 2 number= ;

core/combinators/combinators.factor

@@ -5,6 +5,10 @@ kernel kernel.private math assocs quotations vectors
 hashtables sorting words sets math.order make ;
 IN: combinators
 
+! Most of these combinators have compile-time expansions in
+! the optimizing compiler. See stack-checker.transforms and
+! compiler.tree.propagation.call-effect
+
 <PRIVATE
 
 : call-effect-unsafe ( quot effect -- ) drop call ;