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authorLudovic Courtès <ludo@gnu.org>2009-09-02 00:07:27 +0200
committerLudovic Courtès <ludo@gnu.org>2009-09-02 01:37:37 +0200
commit5f236208d0d864546e59afa0f5a11c9b3ba14b10 (patch)
treeeed5d9203a2633c8efb85c1b36425eab87574299 /module/language/scheme/compile-tree-il.scm
parentf0eb5ae6c173aed35965b0561897fda1d8ff0db1 (diff)
parentd7e7a02a6251c8ed4f76933d9d30baeee3f599c0 (diff)
downloadguile-5f236208d0d864546e59afa0f5a11c9b3ba14b10.tar.gz
Merge branch 'boehm-demers-weiser-gc' into bdw-gc-static-alloc
Conflicts: acinclude.m4 libguile/strings.c
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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)))))