65 lines
2.4 KiB
Factor
65 lines
2.4 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: lists USE: kernel USE: stack
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: array>list ( array -- list )
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#! Convert an array into a proper list.
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[ [ "java.lang.Object" ] ] "factor.Cons" "fromArray"
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jinvoke-static ;
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: car ( [ car | cdr ] -- car )
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#! Push the head of a list.
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"factor.Cons" "car" jvar-get ; inline
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: cdr ( [ car | cdr ] -- cdr )
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#! Push the tail of a list. In a proper list, the tail is
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#! always a cons cell or f; in an improper list, the tail
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#! can be anything.
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"factor.Cons" "cdr" jvar-get ; inline
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: cons ( car cdr -- [ car , cdr ] )
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#! Push a new cons cell. If the cdr is f or a proper list,
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#! has the effect of prepending the car to the cdr.
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[ "java.lang.Object" "java.lang.Object" ] "factor.Cons" jnew
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; inline
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: cons? ( list -- boolean )
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#! Test for cons cell type.
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"factor.Cons" is ; inline
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: deep-clone ( cons -- cons )
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[ "factor.Cons" ] "factor.Cons" "deepClone" jinvoke-static ;
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: set-car ( A [ B | C ] -- )
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#! DESTRUCTIVE. Replace the head of a list.
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"factor.Cons" "car" jvar-set ; inline
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: set-cdr ( A [ B | C ] -- )
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#! DESTRUCTIVE. Replace the tail of a list.
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"factor.Cons" "cdr" jvar-set ; inline
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