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guile/module/language/scheme/compile-tree-il.scm
Andy Wingo b81d329e44 more work on tree-il compilation
* module/language/scheme/amatch.scm: Remove, this approach won't be used.

* module/Makefile.am: Adjust for additions and removals.

* module/language/scheme/compile-ghil.scm: Remove an vestigial debugging
  statement.

* module/language/scheme/spec.scm:
* module/language/scheme/compile-tree-il.scm:
* module/language/scheme/decompile-tree-il.scm: Add tree-il compiler and
  decompiler.

* module/language/tree-il/compile-glil.scm: Add some notes.

* module/language/tree-il/spec.scm: No need to wrap expressions in
  lambdas -- GHIL needs somewhere to put its variables, we don't.
2009-05-08 12:56:18 +02:00

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2.1 KiB
Scheme

;;; Guile Scheme specification
;; Copyright (C) 2001 Free Software Foundation, Inc.
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;;
;; This program 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 General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Code:
(define-module (language scheme compile-tree-il)
#:use-module (language tree-il)
#:export (compile-tree-il))
;;; environment := #f
;;; | MODULE
;;; | COMPILE-ENV
;;; compile-env := (MODULE LEXICALS . EXTERNALS)
(define (cenv-module env)
(cond ((not env) #f)
((module? env) env)
((and (pair? env) (module? (car env))) (car env))
(else (error "bad environment" env))))
(define (cenv-lexicals env)
(cond ((not env) '())
((module? env) '())
((pair? env) (cadr env))
(else (error "bad environment" env))))
(define (cenv-externals env)
(cond ((not env) '())
((module? env) '())
((pair? env) (cddr env))
(else (error "bad environment" env))))
(define (make-cenv module lexicals externals)
(cons module (cons lexicals externals)))
(define (location x)
(and (pair? x)
(let ((props (source-properties x)))
(and (not (null? props))
props))))
(define (compile-tree-il x e opts)
(save-module-excursion
(lambda ()
(and=> (cenv-module e) set-current-module)
(let ((x (sc-expand x 'c '(compile load eval)))
(cenv (make-cenv (current-module)
(cenv-lexicals e) (cenv-externals e))))
(values x cenv cenv)))))