From: Michael R. Blair <edu/mit/csail/zurich/ziggy>
Date: Tue, 11 Jul 1995 02:03:43 +0000 (+0000)
Subject: Initial revision
X-Git-Tag: 20090517-FFI~6192
X-Git-Url: https://birchwood-abbey.net/git?a=commitdiff_plain;h=892e457cf8127b9fb99d1dc706da0bba9b763aa5;p=mit-scheme.git

Initial revision
---

diff --git a/v7/src/wabbit/load.scm b/v7/src/wabbit/load.scm
new file mode 100644
index 000000000..2ccbefc63
--- /dev/null
+++ b/v7/src/wabbit/load.scm
@@ -0,0 +1,93 @@
+#| -*-Scheme-*-
+
+$Id: load.scm,v 1.1 1995/07/11 02:03:43 ziggy Exp $
+
+Copyright (c) 1994 Massachusetts Institute of Technology
+
+This material was developed by the Scheme project at the Massachusetts
+Institute of Technology, Department of Electrical Engineering and
+Computer Science.  Permission to copy this software, to redistribute
+it, and to use it for any purpose is granted, subject to the following
+restrictions and understandings.
+
+1. Any copy made of this software must include this copyright notice
+in full.
+
+2. Users of this software agree to make their best efforts (a) to
+return to the MIT Scheme project any improvements or extensions that
+they make, so that these may be included in future releases; and (b)
+to inform MIT of noteworthy uses of this software.
+
+3. All materials developed as a consequence of the use of this
+software shall duly acknowledge such use, in accordance with the usual
+standards of acknowledging credit in academic research.
+
+4. MIT has made no warrantee or representation that the operation of
+this software will be error-free, and MIT is under no obligation to
+provide any services, by way of maintenance, update, or otherwise.
+
+5. In conjunction with products arising from the use of this material,
+there shall be no use of the name of the Massachusetts Institute of
+Technology nor of any adaptation thereof in any advertising,
+promotional, or sales literature without prior written consent from
+MIT in each case. |#
+
+;;;; System Packaging
+
+(declare (usual-integrations))
+
+(cond ((name->package '(gc-wabbits))
+       (display "\n; Package already loaded under some other alias")
+       'ok)
+      (else
+       (package/system-loader "wabbit" '() 'QUERY)
+       (add-system! (make-system "Wabbit Hunting / Headhunting GC" 1 0 '()))
+
+       (let ()
+	 (define (package-initialize package-name
+				     #!optional procedure-name mandatory?)
+	   (let ((procedure-name
+		  (if (default-object? procedure-name)
+		      'INITIALIZE-PACKAGE!
+		      procedure-name))
+		 (mandatory?
+		  (or (default-object? mandatory?) mandatory?)))
+	     (define (print-name string)
+	       (display "\n")
+	       (display string)
+	       (display " (")
+	       (let loop ((name package-name))
+		 (if (not (null? name))
+		     (begin
+		       (if (not (eq? name package-name))
+			   (display " "))
+		       (display (system-pair-car (car name)))
+		       (loop (cdr name)))))
+	       (display ")"))
+
+	     (define (package-reference name)
+	       (package/environment (find-package name)))
+
+	     (let ((env (package-reference package-name)))
+	       (cond ((not procedure-name))
+		     ((not (lexical-unreferenceable? env procedure-name))
+		      (print-name "initialize:")
+		      (if (not (eq? procedure-name 'INITIALIZE-PACKAGE!))
+			  (begin
+			    (display " [")
+			    (display (system-pair-car procedure-name))
+			    (display "]")))
+		      ((lexical-reference env procedure-name)))
+		     ((not mandatory?)
+		      (print-name "* skipping:"))
+		     (else
+		      ;; Missing mandatory package! Report it and die.
+		      (print-name "Package")
+		      (display " is missing initialization procedure ")
+		      (display (system-pair-car procedure-name))
+		      (error "Could not initialize a required package."))))))
+
+	 (package-initialize '(gc-wabbits)))))
+
+;;; fini
+