From 35d690c70124e1cfea8bfb47a8d97cb5b42fb06f Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Fri, 19 Dec 2003 04:59:34 +0000
Subject: [PATCH] give an error message instead of segging for the following
 code:

@class foo;
@interface bar : foo
@end
---
 tools/qfcc/source/class.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/tools/qfcc/source/class.c b/tools/qfcc/source/class.c
index d26d7e65b..4d25e9148 100644
--- a/tools/qfcc/source/class.c
+++ b/tools/qfcc/source/class.c
@@ -506,9 +506,16 @@ struct_t *
 class_new_ivars (class_t *class)
 {
 	struct_t   *ivars = new_struct (0);
-	if (class->super_class)
-		new_struct_field (ivars, class->super_class->ivars->type, 0,
-						  vis_private);
+	if (class->super_class) {
+		if (!class->super_class->ivars) {
+			error (0, "cannot find interface declaration for `%s', "
+				  "superclass of `%s'", class->super_class->name,
+				  class->name);
+		} else {
+			new_struct_field (ivars, class->super_class->ivars->type, 0,
+							  vis_private);
+		}
+	}
 	return ivars;
 }