From: Chris Hanson <org/chris-hanson/cph>
Date: Sun, 21 Jul 1991 07:02:17 +0000 (+0000)
Subject: ENVIRONMENT-HAS-PARENT? must return one of three values: #F, #T, or
X-Git-Tag: 20090517-FFI~10439
X-Git-Url: https://birchwood-abbey.net/git?a=commitdiff_plain;h=05047f08cdb8d01d4b271300c2a5db50621b6c47;p=mit-scheme.git

ENVIRONMENT-HAS-PARENT? must return one of three values: #F, #T, or
'SIMULATED.  In the case of compiled closures, it was returning
something else, causing the debugging tools to think that these
procedures had no closing frame.
---

diff --git a/v7/src/runtime/uenvir.scm b/v7/src/runtime/uenvir.scm
index dc7a12877..81b6a2d63 100644
--- a/v7/src/runtime/uenvir.scm
+++ b/v7/src/runtime/uenvir.scm
@@ -1,6 +1,6 @@
 #| -*-Scheme-*-
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/runtime/uenvir.scm,v 14.23 1991/05/10 22:24:18 cph Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/runtime/uenvir.scm,v 14.24 1991/07/21 07:02:17 cph Exp $
 
 Copyright (c) 1988-91 Massachusetts Institute of Technology
 
@@ -575,7 +575,7 @@ MIT in each case. |#
 	(let ((parent (dbg-block/parent stack-block)))
 	  (and parent
 	       (case (dbg-block/type parent)
-		 ((CLOSURE) (dbg-block/original-parent stack-block))
+		 ((CLOSURE) (and (dbg-block/original-parent stack-block) true))
 		 ((STACK IC) true)
 		 (else (error "Illegal parent block" parent))))))
       'SIMULATED))
diff --git a/v8/src/runtime/uenvir.scm b/v8/src/runtime/uenvir.scm
index c7ac2d458..468e1d31d 100644
--- a/v8/src/runtime/uenvir.scm
+++ b/v8/src/runtime/uenvir.scm
@@ -1,6 +1,6 @@
 #| -*-Scheme-*-
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v8/src/runtime/uenvir.scm,v 14.23 1991/05/10 22:24:18 cph Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v8/src/runtime/uenvir.scm,v 14.24 1991/07/21 07:02:17 cph Exp $
 
 Copyright (c) 1988-91 Massachusetts Institute of Technology
 
@@ -575,7 +575,7 @@ MIT in each case. |#
 	(let ((parent (dbg-block/parent stack-block)))
 	  (and parent
 	       (case (dbg-block/type parent)
-		 ((CLOSURE) (dbg-block/original-parent stack-block))
+		 ((CLOSURE) (and (dbg-block/original-parent stack-block) true))
 		 ((STACK IC) true)
 		 (else (error "Illegal parent block" parent))))))
       'SIMULATED))