From: Chris Hanson <org/chris-hanson/cph>
Date: Wed, 17 Apr 2002 15:02:21 +0000 (+0000)
Subject: Don't reserve names in top-level environments.  The revised report
X-Git-Tag: 20090517-FFI~2189
X-Git-Url: https://birchwood-abbey.net/git?a=commitdiff_plain;h=4396373e96ab5c7a7c6a0a033c29b8bd9a32a14f;p=mit-scheme.git

Don't reserve names in top-level environments.  The revised report
requires that top-level definitions act like assignments when the name
is already bound.
---

diff --git a/v7/src/runtime/mit-syntax.scm b/v7/src/runtime/mit-syntax.scm
index aa1194fb1..7f138d27b 100644
--- a/v7/src/runtime/mit-syntax.scm
+++ b/v7/src/runtime/mit-syntax.scm
@@ -1,6 +1,6 @@
 ;;; -*-Scheme-*-
 ;;;
-;;; $Id: mit-syntax.scm,v 14.5 2002/03/01 03:09:54 cph Exp $
+;;; $Id: mit-syntax.scm,v 14.6 2002/04/17 15:02:21 cph Exp $
 ;;;
 ;;; Copyright (c) 1989-1991, 2001, 2002 Massachusetts Institute of Technology
 ;;;
@@ -240,9 +240,10 @@
 
 (define (classify/define form environment definition-environment history
 			 binding-theory)
-  (syntactic-environment/define definition-environment
-				(cadr form)
-				(make-reserved-name-item history))
+  (if (not (syntactic-environment/top-level? definition-environment))
+      (syntactic-environment/define definition-environment
+				    (cadr form)
+				    (make-reserved-name-item history)))
   (binding-theory definition-environment
 		  (cadr form)
 		  (classify/subexpression (caddr form)