;;; -*- Mode: Scheme -*- ;;;; Concurrent ML for Scheme ;;;; Rendezvous Syntax ;;; Copyright (c) 2009--2010, Taylor R. Campbell ;;; ;;; Redistribution and use in source and binary forms, with or without ;;; modification, are permitted provided that the following conditions ;;; are met: ;;; ;;; * Redistributions of source code must retain the above copyright ;;; notice, this list of conditions and the following disclaimer. ;;; ;;; * Redistributions in binary form must reproduce the above copyright ;;; notice, this list of conditions and the following disclaimer in ;;; the documentation and/or other materials provided with the ;;; distribution. ;;; ;;; * Neither the names of the authors nor the names of contributors ;;; may be used to endorse or promote products derived from this ;;; software without specific prior written permission. ;;; ;;; THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS ;;; OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED ;;; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ;;; ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY ;;; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL ;;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE ;;; GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS ;;; INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, ;;; WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING ;;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS ;;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. (define-syntax rendezvous-case (syntax-rules () ((RENDEZVOUS-CASE clause ...) (SYNCHRONIZE-CHOSEN-RENDEZVOUS (RENDEZVOUS-CASE-CLAUSE clause) ...)))) (define-syntax rendezvous-case-clause (syntax-rules (=>) ((RENDEZVOUS-CASE-CLAUSE (rendezvous => receiver)) (MAP-RENDEZVOUS rendezvous receiver)) ((RENDEZVOUS-CASE-CLAUSE (rendezvous body0 body1+ ...)) (MAP-RENDEZVOUS rendezvous (LAMBDA IGNORED IGNORED body0 body1+ ...))) ((RENDEZVOUS-CASE-CLAUSE (rendezvous)) rendezvous)))