61 lines
2.0 KiB
Factor
61 lines
2.0 KiB
Factor
! :folding=indent: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: alien
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USE: compiler
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USE: kernel
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USE: lists
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USE: math
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USE: namespaces
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: UNBOX ( name -- )
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#! Move top of datastack to C stack.
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SELF-CALL EAX PUSH-R ;
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: BOX ( name -- )
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#! Move EAX to datastack.
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EAX PUSH-R SELF-CALL 4 ESP R+I ;
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: PARAMETERS ( params -- count )
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#! Generate code for boxing a list of C types.
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#! Return amount stack must be unwound by.
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0 swap [
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c-type [
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"unboxer" get UNBOX "width" get cell align +
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] bind
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] each ;
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: CLEANUP ( amount -- )
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dup 0 = [ drop ] [ ESP R+I ] ifte ;
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: RETURNS ( type -- )
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dup "void" = [
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drop
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] [
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c-type [ "boxer" get ] bind BOX
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] ifte ;
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