! 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 ;
+BUILTIN: tuple ;
+BUILTIN: wrapper { wrapped read-only } ;
+
+PRIMITIVE: -rot ( x y z -- z x y )
+PRIMITIVE: dup ( x -- x x )
+PRIMITIVE: dupd ( x y -- x x y )
+PRIMITIVE: drop ( x -- )
+PRIMITIVE: nip ( x y -- y )
+PRIMITIVE: over ( x y -- x y x )
+PRIMITIVE: pick ( x y z -- x y z x )
+PRIMITIVE: rot ( x y z -- y z x )
+PRIMITIVE: swap ( x y -- y x )
+PRIMITIVE: swapd ( x y z -- y x z )
+PRIMITIVE: 2drop ( x y -- )
+PRIMITIVE: 2dup ( x y -- x y x y )
+PRIMITIVE: 2nip ( x y z -- z )
+PRIMITIVE: 3drop ( x y z -- )
+PRIMITIVE: 3dup ( x y z -- x y z x y z )
+PRIMITIVE: 4drop ( w x y z -- )
+PRIMITIVE: 4dup ( w x y z -- w x y z w x y z )
+
+PRIMITIVE: (clone) ( obj -- newobj )
+PRIMITIVE: eq? ( obj1 obj2 -- ? )
+PRIMITIVE: <wrapper> ( obj -- wrapper )
+PRIMITIVE: die ( -- )
+PRIMITIVE: callstack>array ( callstack -- array )
+
+<PRIVATE
+PRIMITIVE: (call) ( quot -- )
+PRIMITIVE: (execute) ( word -- )
+PRIMITIVE: (identity-hashcode) ( obj -- code )
+PRIMITIVE: become ( old new -- )
+PRIMITIVE: c-to-factor ( -- )
+PRIMITIVE: callstack-bounds ( -- start end )
+PRIMITIVE: check-datastack ( array in# out# -- ? )
+PRIMITIVE: compute-identity-hashcode ( obj -- )
+PRIMITIVE: context-object ( n -- obj )
+PRIMITIVE: fpu-state ( -- )
+PRIMITIVE: innermost-frame-executing ( callstack -- obj )
+PRIMITIVE: innermost-frame-scan ( callstack -- n )
+PRIMITIVE: lazy-jit-compile ( -- )
+PRIMITIVE: leaf-signal-handler ( -- )
+PRIMITIVE: set-callstack ( callstack -- * )
+PRIMITIVE: set-context-object ( obj n -- )
+PRIMITIVE: set-datastack ( array -- )
+PRIMITIVE: set-fpu-state ( -- )
+PRIMITIVE: set-innermost-frame-quotation ( n callstack -- )
+PRIMITIVE: set-retainstack ( array -- )
+PRIMITIVE: set-special-object ( obj n -- )
+PRIMITIVE: signal-handler ( -- )
+PRIMITIVE: special-object ( n -- obj )
+PRIMITIVE: strip-stack-traces ( -- )
+PRIMITIVE: tag ( object -- n )
+PRIMITIVE: unwind-native-frames ( -- )
+PRIVATE>
+
DEFER: dip
DEFER: 2dip
DEFER: 3dip
GENERIC: execute ( word -- )
-GENERIC: ?execute ( word -- value )
-
-M: object ?execute ;
-
DEFER: if
: ? ( ? true false -- true/false )
- #! 'if' and '?' can be defined in terms of each other
- #! because the JIT special-cases an 'if' preceeded by
- #! two literal quotations.
+ ! 'if' and '?' can be defined in terms of each other
+ ! because the JIT special-cases an 'if' preceded by
+ ! two literal quotations.
rot [ drop ] [ nip ] if ; inline
: if ( ..a ? true: ( ..a -- ..b ) false: ( ..a -- ..b ) -- ..b ) ? call ;
: 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
: 3keep ( ..a x y z quot: ( ..a x y z -- ..b ) -- ..b x y z )
[ 3dup ] dip 3dip ; 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
-: prepose ( quot1 quot2 -- compose )
+: 2with ( param1 param2 obj quot -- obj curried )
+ with with ; inline
+
+: 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 -- ? )
2dup both-fixnums? [ 2drop f ] [ equal? ] if
] if ; inline
+: same? ( x y quot -- ? ) bi@ = ; inline
+
GENERIC: clone ( obj -- cloned )
M: object clone ; inline
: do-primitive ( number -- ) "Improper primitive call" throw ;
+! Special object count and identifiers must be kept in sync with:
+! vm/objects.hpp
+CONSTANT: special-object-count 85
+
+CONSTANT: OBJ-WALKER-HOOK 3
+
+CONSTANT: OBJ-CALLCC-1 4
+
+CONSTANT: ERROR-HANDLER-QUOT 5
+
+CONSTANT: OBJ-CELL-SIZE 7
+CONSTANT: OBJ-CPU 8
+CONSTANT: OBJ-OS 9
+
+CONSTANT: OBJ-ARGS 10
+CONSTANT: OBJ-STDIN 11
+CONSTANT: OBJ-STDOUT 12
+
+CONSTANT: OBJ-IMAGE 13
+CONSTANT: OBJ-EXECUTABLE 14
+
+CONSTANT: OBJ-EMBEDDED 15
+CONSTANT: OBJ-EVAL-CALLBACK 16
+CONSTANT: OBJ-YIELD-CALLBACK 17
+CONSTANT: OBJ-SLEEP-CALLBACK 18
+
+CONSTANT: OBJ-STARTUP-QUOT 20
+CONSTANT: OBJ-GLOBAL 21
+CONSTANT: OBJ-SHUTDOWN-QUOT 22
+
+CONSTANT: JIT-PROLOG 23
+CONSTANT: JIT-PRIMITIVE-WORD 24
+CONSTANT: JIT-PRIMITIVE 25
+CONSTANT: JIT-WORD-JUMP 26
+CONSTANT: JIT-WORD-CALL 27
+CONSTANT: JIT-IF-WORD 28
+CONSTANT: JIT-IF 29
+CONSTANT: JIT-SAFEPOINT 30
+CONSTANT: JIT-EPILOG 31
+CONSTANT: JIT-RETURN 32
+CONSTANT: JIT-UNUSED 33
+CONSTANT: JIT-PUSH-LITERAL 34
+CONSTANT: JIT-DIP-WORD 35
+CONSTANT: JIT-DIP 36
+CONSTANT: JIT-2DIP-WORD 37
+CONSTANT: JIT-2DIP 38
+CONSTANT: JIT-3DIP-WORD 39
+CONSTANT: JIT-3DIP 40
+CONSTANT: JIT-EXECUTE 41
+CONSTANT: JIT-DECLARE-WORD 42
+
+CONSTANT: C-TO-FACTOR-WORD 43
+CONSTANT: LAZY-JIT-COMPILE-WORD 44
+CONSTANT: UNWIND-NATIVE-FRAMES-WORD 45
+CONSTANT: GET-FPU-STATE-WORD 46
+CONSTANT: SET-FPU-STATE-WORD 47
+CONSTANT: SIGNAL-HANDLER-WORD 48
+CONSTANT: LEAF-SIGNAL-HANDLER-WORD 49
+CONSTANT: WIN-EXCEPTION-HANDLER 50
+
+CONSTANT: OBJ-SAMPLE-CALLSTACKS 51
+
+CONSTANT: REDEFINITION-COUNTER 52
+
+CONSTANT: CALLBACK-STUB 53
+
+CONSTANT: PIC-LOAD 54
+CONSTANT: PIC-TAG 55
+CONSTANT: PIC-TUPLE 56
+CONSTANT: PIC-CHECK-TAG 57
+CONSTANT: PIC-CHECK-TUPLE 58
+CONSTANT: PIC-HIT 59
+CONSTANT: PIC-MISS-WORD 60
+CONSTANT: PIC-MISS-TAIL-WORD 61
+
+CONSTANT: MEGA-LOOKUP 62
+CONSTANT: MEGA-LOOKUP-WORD 63
+CONSTANT: MEGA-MISS-WORD 64
+
+CONSTANT: OBJ-UNDEFINED 65
+
+CONSTANT: OBJ-STDERR 66
+
+CONSTANT: OBJ-STAGE2 67
+
+CONSTANT: OBJ-CURRENT-THREAD 68
+
+CONSTANT: OBJ-THREADS 69
+CONSTANT: OBJ-RUN-QUEUE 70
+CONSTANT: OBJ-SLEEP-QUEUE 71
+
+CONSTANT: OBJ-VM-COMPILER 72
+
+CONSTANT: OBJ-WAITING-CALLBACKS 73
+
+CONSTANT: OBJ-SIGNAL-PIPE 74
+
+CONSTANT: OBJ-VM-COMPILE-TIME 75
+
+CONSTANT: OBJ-VM-VERSION 76
+CONSTANT: OBJ-VM-GIT-LABEL 77
+
+CONSTANT: OBJ-CANONICAL-TRUE 78
+
+CONSTANT: OBJ-BIGNUM-ZERO 79
+CONSTANT: OBJ-BIGNUM-POS-ONE 80
+CONSTANT: OBJ-BIGNUM-NEG-ONE 81
+
+! Context object count and identifiers must be kept in sync with:
+! vm/contexts.hpp
+
+CONSTANT: context-object-count 4
+
+CONSTANT: CONTEXT-OBJ-NAMESTACK 0
+CONSTANT: CONTEXT-OBJ-CATCHSTACK 1
+CONSTANT: CONTEXT-OBJ-CONTEXT 2
+CONSTANT: CONTEXT-OBJ-IN-CALLBACK-P 3
+
+! Runtime errors must be kept in sync with:
+! basis/debugger/debugger.factor
+! vm/errors.hpp
+
+! VM adds this to kernel errors, so that user-space can identify them.
+CONSTANT: KERNEL-ERROR 0xfac7
+
+CONSTANT: kernel-error-count 20
+
+CONSTANT: ERROR-EXPIRED 0
+CONSTANT: ERROR-IO 1
+CONSTANT: ERROR-NOT-IMPLEMENTED 2
+CONSTANT: ERROR-TYPE 3
+CONSTANT: ERROR-DIVIDE-BY-ZERO 4
+CONSTANT: ERROR-SIGNAL 5
+CONSTANT: ERROR-ARRAY-SIZE 6
+CONSTANT: ERROR-OUT-OF-FIXNUM-RANGE 7
+CONSTANT: ERROR-FFI 8
+CONSTANT: ERROR-UNDEFINED-SYMBOL 9
+CONSTANT: ERROR-DATASTACK-UNDERFLOW 10
+CONSTANT: ERROR-DATASTACK-OVERFLOW 11
+CONSTANT: ERROR-RETAINSTACK-UNDERFLOW 12
+CONSTANT: ERROR-RETAINSTACK-OVERFLOW 13
+CONSTANT: ERROR-CALLSTACK-UNDERFLOW 14
+CONSTANT: ERROR-CALLSTACK-OVERFLOW 15
+CONSTANT: ERROR-MEMORY 16
+CONSTANT: ERROR-FP-TRAP 17
+CONSTANT: ERROR-INTERRUPT 18
+CONSTANT: ERROR-CALLBACK-SPACE-OVERFLOW 19
+
+PRIMITIVE: callstack-for ( context -- array )
+PRIMITIVE: retainstack-for ( context -- array )
+PRIMITIVE: datastack-for ( context -- array )
+
+: context ( -- context )
+ CONTEXT-OBJ-CONTEXT context-object ; inline
+
PRIVATE>
+
+: get-callstack ( -- callstack )
+ context callstack-for ; inline
+
+: get-datastack ( -- array )
+ context datastack-for ; inline
+
+: get-retainstack ( -- array )
+ context retainstack-for ; inline
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