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;;; Guile Scheme specification
;; Copyright (C) 2001 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 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)))))
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