! Copyright (C) 2004, 2009 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
-USING: kernel.private slots.private math.private ;
+USE: slots.private
+USE: kernel.private
+USE: math.private
IN: kernel
BUILTIN: callstack ;
PRIMITIVE: special-object ( n -- obj )
PRIMITIVE: strip-stack-traces ( -- )
PRIMITIVE: tag ( object -- n )
-PRIMITIVE: unimplemented ( -- * )
PRIMITIVE: unwind-native-frames ( -- )
PRIVATE>
: ? ( ? true false -- true/false )
! 'if' and '?' can be defined in terms of each other
- ! because the JIT special-cases an 'if' preceeded by
+ ! because the JIT special-cases an 'if' preceded by
! two literal quotations.
rot [ drop ] [ nip ] if ; inline
: 4dip ( w x y z quot -- w x y z ) swap [ 3dip ] dip ; inline
+! Misfits
+: tuck ( x y -- y x y ) dup -rot ; inline
+
+: spin ( x y z -- z y x ) -rot swap ; inline
+
+: rotd ( w x y z -- x y w z ) [ rot ] dip ; inline
+
+: -rotd ( w x y z -- y w x z ) [ -rot ] dip ; inline
+
+: roll ( w x y z -- x y z w ) rotd swap ; inline
+
+: -roll ( w x y z -- z w x y ) swap -rotd ; inline
+
+: nipd ( x y z -- y z ) [ nip ] dip ; inline
+
+: overd ( x y z -- x y x z ) [ over ] dip ; inline
+
+: pickd ( w x y z -- w x y w z ) [ pick ] dip ; inline
+
+: 2nipd ( w x y z -- y z ) [ 2drop ] 2dip ; inline
+
+: 3nipd ( v w x y z -- y z ) [ 3drop ] 2dip ; inline
+
+: 3nip ( w x y z -- z ) 2nip nip ; inline
+
+: 4nip ( v w x y z -- z ) 2nip 2nip ; inline
+
+: 5nip ( u v w x y z -- z ) 3nip 2nip ; inline
+
+: 5drop ( v w x y z -- ) 4drop drop ; inline
+
+: reach ( w x y z -- w x y z w ) [ pick ] dip swap ; inline
+
! Keepers
: keep ( ..a x quot: ( ..a x -- ..b ) -- ..b x )
over [ call ] dip ; inline
: 4keep ( ..a w x y z quot: ( ..a w x y z -- ..b ) -- ..b w x y z )
[ 4dup ] dip 4dip ; inline
+: keepd ( ..a x y quot: ( ..a x y -- ..b ) -- ..b x )
+ 2keep drop ; inline
+
+: keepdd ( ..a x y z quot: ( ..a x y z -- ..b ) -- ..b x )
+ 3keep 2drop ; inline
+
+: 2keepd ( ..a x y z quot: ( ..a x y z -- ..b ) -- ..b x y )
+ 3keep drop ; inline
+
! Cleavers
: bi ( x p q -- )
[ keep ] dip call ; inline
dup dup 2tri* ; inline
! Quotation building
-: 2curry ( obj1 obj2 quot -- curry )
+: 2curry ( obj1 obj2 quot -- curried )
curry curry ; inline
-: 3curry ( obj1 obj2 obj3 quot -- curry )
+: 3curry ( obj1 obj2 obj3 quot -- curried )
curry curry curry ; inline
-: with ( param obj quot -- obj curry )
+: with ( param obj quot -- obj curried )
swapd [ swapd call ] 2curry ; inline
-: 2with ( param1 param2 obj quot -- obj curry )
+: 2with ( param1 param2 obj quot -- obj curried )
with with ; inline
-: prepose ( quot1 quot2 -- compose )
+: withd ( param obj quot -- obj curried )
+ swapd [ -rotd call ] 2curry ; inline
+
+: prepose ( quot1 quot2 -- composed )
swap compose ; inline
! Curried cleavers
<PRIVATE
-: [curry] ( quot -- quot' ) [ curry ] curry ; inline
+: currier ( quot -- quot' ) [ curry ] curry ; inline
PRIVATE>
-: bi-curry ( x p q -- p' q' ) [ [curry] ] bi@ bi ; inline
+: bi-curry ( x p q -- p' q' ) [ currier ] bi@ bi ; inline
-: tri-curry ( x p q r -- p' q' r' ) [ [curry] ] tri@ tri ; inline
+: tri-curry ( x p q r -- p' q' r' ) [ currier ] tri@ tri ; inline
-: bi-curry* ( x y p q -- p' q' ) [ [curry] ] bi@ bi* ; inline
+: bi-curry* ( x y p q -- p' q' ) [ currier ] bi@ bi* ; inline
-: tri-curry* ( x y z p q r -- p' q' r' ) [ [curry] ] tri@ tri* ; inline
+: tri-curry* ( x y z p q r -- p' q' r' ) [ currier ] tri@ tri* ; inline
-: bi-curry@ ( x y q -- p' q' ) [curry] bi@ ; inline
+: bi-curry@ ( x y q -- p' q' ) currier bi@ ; inline
-: tri-curry@ ( x y z q -- p' q' r' ) [curry] tri@ ; inline
+: tri-curry@ ( x y z q -- p' q' r' ) currier tri@ ; inline
! Booleans
UNION: boolean POSTPONE: t POSTPONE: f ;
: most ( x y quot -- z ) 2keep ? ; inline
+: negate ( quot -- quot' ) [ not ] compose ; inline
+
! Loops
: loop ( ... pred: ( ... -- ... ? ) -- ... )
[ call ] keep [ loop ] curry when ; inline recursive
: while ( ..a pred: ( ..a -- ..b ? ) body: ( ..b -- ..a ) -- ..b )
swap do compose [ loop ] curry when ; inline
+: while* ( ..a pred: ( ..a -- ..b ? ) body: ( ..b ? -- ..a ) -- ..b )
+ [ [ dup ] compose ] dip while drop ; inline
+
: until ( ..a pred: ( ..a -- ..b ? ) body: ( ..b -- ..a ) -- ..b )
- [ [ not ] compose ] dip while ; inline
+ [ negate ] dip while ; inline
! Object protocol
-GENERIC: hashcode* ( depth obj -- code )
+GENERIC: hashcode* ( depth obj -- code ) flushable
M: object hashcode* 2drop 0 ; inline
: hashcode ( obj -- code ) 3 swap hashcode* ; inline
+GENERIC: equal? ( obj1 obj2 -- ? )
+
+M: object equal? 2drop f ; inline
+
+TUPLE: identity-tuple ;
+
+M: identity-tuple equal? 2drop f ; inline
+
: identity-hashcode ( obj -- code )
dup tag 0 eq? [
dup tag 1 eq? [ drop 0 ] [
] if
] unless ; inline
-GENERIC: equal? ( obj1 obj2 -- ? )
-
-M: object equal? 2drop f ; inline
-
-TUPLE: identity-tuple ;
-
-M: identity-tuple equal? 2drop f ; inline
-
M: identity-tuple hashcode* nip identity-hashcode ; inline
: = ( obj1 obj2 -- ? )
CONSTANT: LEAF-SIGNAL-HANDLER-WORD 49
CONSTANT: WIN-EXCEPTION-HANDLER 50
+CONSTANT: OBJ-SAMPLE-CALLSTACKS 51
+
CONSTANT: REDEFINITION-COUNTER 52
CONSTANT: CALLBACK-STUB 53