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;;; Tree Intermediate Language
;; Copyright (C) 2009-2011,2013,2015,2020 Free Software Foundation, Inc.
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 3 of the License, or (at your option) any later version.
;;;;
;;;; This library is distributed in the hope that it will be useful,
;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;;; Code:
(define-module (language tree-il spec)
#:use-module (system base language)
#:use-module (ice-9 match)
#:use-module (language tree-il)
#:use-module ((language tree-il analyze) #:select (make-analyzer))
#:use-module ((language tree-il optimize) #:select (make-lowerer))
#:export (tree-il))
(define (write-tree-il exp . port)
(apply write (unparse-tree-il exp) port))
(define (join exps env)
(match exps
(() (make-void #f))
((x) x)
((x . rest)
(make-seq #f x (join rest env)))
(_ (error "what!" exps env))))
(define (choose-compiler target optimization-level opts)
(define (load-compiler compiler)
(module-ref (resolve-interface `(language tree-il ,compiler)) compiler))
(if (match (memq #:cps? opts)
((_ cps? . _) cps?)
(#f (<= 2 optimization-level)))
(cons 'cps (load-compiler 'compile-cps))
(cons 'bytecode (load-compiler 'compile-bytecode))))
(define-language tree-il
#:title "Tree Intermediate Language"
#:reader (lambda (port env) (read port))
#:printer write-tree-il
#:parser parse-tree-il
#:joiner join
#:compiler-chooser choose-compiler
#:analyzer make-analyzer
#:lowerer make-lowerer
#:for-humans? #f)
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