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f261eaf03a
* module/language/cps/spec.scm (read-cps, write-cps): Fix CPS serialization and parsing, so that "guild compile" works with --to=cps and --from=cps.
51 lines
1.8 KiB
Scheme
51 lines
1.8 KiB
Scheme
;;; Continuation-passing style (CPS) intermediate language (IL)
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;; Copyright (C) 2015 Free Software Foundation, Inc.
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;;;; This library is free software; you can redistribute it and/or
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;;;; modify it under the terms of the GNU Lesser General Public
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;;;; License as published by the Free Software Foundation; either
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;;;; version 3 of the License, or (at your option) any later version.
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;;;;
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;;;; This library is distributed in the hope that it will be useful,
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;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;;; Lesser General Public License for more details.
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;;;;
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;;;; You should have received a copy of the GNU Lesser General Public
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;;;; License along with this library; if not, write to the Free Software
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;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;;; Code:
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(define-module (language cps spec)
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#:use-module (ice-9 match)
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#:use-module (system base language)
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#:use-module (language cps)
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#:use-module (language cps intmap)
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#:use-module (language cps compile-bytecode)
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#:export (cps))
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(define (read-cps port env)
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(let lp ((out empty-intmap))
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(match (read port)
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((k exp) (lp (intmap-add! out k (parse-cps exp))))
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((? eof-object?)
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(if (eq? out empty-intmap)
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the-eof-object
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(persistent-intmap out))))))
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(define* (write-cps exp #:optional (port (current-output-port)))
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(intmap-fold (lambda (k cps port)
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(write (list k (unparse-cps cps)) port)
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(newline port)
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port)
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exp port))
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(define-language cps
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#:title "CPS Intermediate Language"
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#:reader read-cps
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#:printer write-cps
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#:compilers `((bytecode . ,compile-bytecode))
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#:for-humans? #f
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)
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