Merge pull request #10 from phoe-trash/master
[vecto.git] / copy.lisp
blob737c398134f11f4b0e9e3e7ba76a14d0306df122
1 ;;; Copyright (c) 2007 Zachary Beane, All Rights Reserved
2 ;;;
3 ;;; Redistribution and use in source and binary forms, with or without
4 ;;; modification, are permitted provided that the following conditions
5 ;;; are met:
6 ;;;
7 ;;; * Redistributions of source code must retain the above copyright
8 ;;; notice, this list of conditions and the following disclaimer.
9 ;;;
10 ;;; * Redistributions in binary form must reproduce the above
11 ;;; copyright notice, this list of conditions and the following
12 ;;; disclaimer in the documentation and/or other materials
13 ;;; provided with the distribution.
14 ;;;
15 ;;; THIS SOFTWARE IS PROVIDED BY THE AUTHOR 'AS IS' AND ANY EXPRESSED
16 ;;; OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 ;;; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 ;;; ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
19 ;;; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 ;;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
21 ;;; GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 ;;; INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 ;;; WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
24 ;;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 ;;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 ;;;
27 ;;; $Id: copy.lisp,v 1.2 2007/09/20 18:00:37 xach Exp $
29 (in-package #:vecto)
31 (defgeneric copy (object)
32 (:documentation
33 "Copy an object in a way suitable for pushing to the graphics state
34 stack. That is, if it's an immutable object, simply return the
35 object; otherwise, create a new object with the immutable state
36 copied."))