| 1 | ;;; Tree Intermediate Language |
| 2 | |
| 3 | ;; Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc. |
| 4 | |
| 5 | ;;;; This library is free software; you can redistribute it and/or |
| 6 | ;;;; modify it under the terms of the GNU Lesser General Public |
| 7 | ;;;; License as published by the Free Software Foundation; either |
| 8 | ;;;; version 3 of the License, or (at your option) any later version. |
| 9 | ;;;; |
| 10 | ;;;; This library is distributed in the hope that it will be useful, |
| 11 | ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | ;;;; Lesser General Public License for more details. |
| 14 | ;;;; |
| 15 | ;;;; You should have received a copy of the GNU Lesser General Public |
| 16 | ;;;; License along with this library; if not, write to the Free Software |
| 17 | ;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | ;;; Code: |
| 20 | |
| 21 | (define-module (language tree-il spec) |
| 22 | #:use-module (system base language) |
| 23 | #:use-module (system base pmatch) |
| 24 | #:use-module (language glil) |
| 25 | #:use-module (language tree-il) |
| 26 | #:use-module (language tree-il compile-glil) |
| 27 | #:export (tree-il)) |
| 28 | |
| 29 | (define (write-tree-il exp . port) |
| 30 | (apply write (unparse-tree-il exp) port)) |
| 31 | |
| 32 | (define (join exps env) |
| 33 | (pmatch exps |
| 34 | (() (make-void #f)) |
| 35 | ((,x) x) |
| 36 | ((,x . ,rest) |
| 37 | (make-seq #f x (join rest env))) |
| 38 | (else (error "what!" exps env)))) |
| 39 | |
| 40 | (define-language tree-il |
| 41 | #:title "Tree Intermediate Language" |
| 42 | #:reader (lambda (port env) (read port)) |
| 43 | #:printer write-tree-il |
| 44 | #:parser parse-tree-il |
| 45 | #:joiner join |
| 46 | #:compilers `((glil . ,compile-glil)) |
| 47 | ) |