135 lines
3.2 KiB
Factor
135 lines
3.2 KiB
Factor
! :folding=none:collapseFolds=1:
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! $Id$
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!
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! Copyright (C) 2004 Slava Pestov.
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions are met:
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!
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! 1. Redistributions of source code must retain the above copyright notice,
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! this list of conditions and the following disclaimer.
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!
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! 2. Redistributions in binary form must reproduce the above copyright notice,
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! this list of conditions and the following disclaimer in the documentation
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! and/or other materials provided with the distribution.
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!
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! THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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! INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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! FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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! DEVELOPERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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! SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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! PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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! OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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! WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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! OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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! ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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IN: vectors
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DEFER: vector=
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IN: kernel
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USE: combinators
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USE: errors
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USE: io-internals
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USE: lists
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USE: logic
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USE: math
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USE: namespaces
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USE: stack
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USE: stdio
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USE: strings
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USE: vectors
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USE: words
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USE: unparser
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USE: vectors
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! The 'fake vtable' used here speeds things up a lot.
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! It is quite clumsy, however. A higher-level CLOS-style
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! 'generic words' system will be built later.
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: generic ( obj vtable -- )
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over type swap vector-nth call ;
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: 2generic ( n n map -- )
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>r 2dup arithmetic-type r> vector-nth execute ;
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: hashcode ( obj -- hash )
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#! If two objects are =, they must have equal hashcodes.
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{
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[ ]
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[ word-hashcode ]
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[ 4 cons-hashcode ]
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[ drop 0 ]
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[ >fixnum ]
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[ >fixnum ]
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[ drop 0 ]
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[ drop 0 ]
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[ drop 0 ]
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[ vector-hashcode ]
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[ str-hashcode ]
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[ sbuf-hashcode ]
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[ drop 0 ]
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[ >fixnum ]
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[ >fixnum ]
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[ drop 0 ]
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[ drop 0 ]
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} generic ;
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IN: math DEFER: number= ( defined later... )
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IN: kernel
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: equal? ( obj obj -- ? )
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#! Use = instead.
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{
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[ number= ]
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[ eq? ]
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[ cons= ]
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[ eq? ]
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[ number= ]
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[ number= ]
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[ eq? ]
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[ eq? ]
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[ eq? ]
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[ vector= ]
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[ str= ]
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[ sbuf= ]
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[ eq? ]
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[ number= ]
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[ number= ]
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[ eq? ]
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[ eq? ]
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} generic ;
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: = ( obj obj -- ? )
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#! Push t if a is isomorphic to b.
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2dup eq? [ 2drop t ] [ equal? ] ifte ;
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: 2= ( a b c d -- ? )
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#! Test if a = c, b = d.
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swapd = [ = ] [ 2drop f ] ifte ;
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: clone ( obj -- obj )
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[
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[ cons? ] [ clone-list ]
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[ vector? ] [ vector-clone ]
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[ sbuf? ] [ sbuf-clone ]
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[ drop t ] [ ( return the object ) ]
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] cond ;
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: java? f ;
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: native? t ;
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! No compiler...
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: inline ;
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: interpret-only ;
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! HACKS
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IN: strings
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: char? drop f ;
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: >char ;
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: >upper ;
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: >lower ;
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