factor/library/kernel.factor

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! Copyright (C) 2004, 2005 Slava Pestov.
! See http://factor.sf.net/license.txt for BSD license.
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IN: kernel
USING: generic kernel-internals vectors ;
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UNION: boolean f t ;
COMPLEMENT: general-t f
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GENERIC: hashcode ( obj -- n )
M: object hashcode drop 0 ;
GENERIC: = ( obj obj -- ? )
M: object = eq? ;
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GENERIC: clone ( obj -- obj )
M: object clone ;
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: set-boot ( quot -- )
#! Set the boot quotation.
8 setenv ;
: num-types ( -- n )
#! One more than the maximum value from type primitive.
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21 ;
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: ? ( cond t f -- t/f )
#! Push t if cond is true, otherwise push f.
rot [ drop ] [ nip ] ifte ; inline
: >boolean t f ? ; inline
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: not ( a -- ~a ) f t ? ; inline
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: and ( a b -- a&b ) f ? ; inline
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: or ( a b -- a|b ) t swap ? ; inline
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: xor ( a b -- a^b ) dup not swap ? ; inline
: implies ( a b -- a->b ) t ? ; inline
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: cpu ( -- arch ) 7 getenv ;
: os ( -- os ) 11 getenv ;
: win32? ( -- ? ) os "win32" = ;
: unix? ( -- ? )
os "freebsd" =
os "linux" = or
os "macosx" = or ;
: tag-mask BIN: 111 ; inline
: tag-bits 3 ; inline
: fixnum-tag BIN: 000 ; inline
: bignum-tag BIN: 001 ; inline
: cons-tag BIN: 010 ; inline
: object-tag BIN: 011 ; inline