From: SASADA Koichi <ko1@...>
Date: 2008-12-25T13:14:15+09:00
Subject: [ruby-dev:37592] Re: [Bug: trunk] module_function中のsuperでSystemStackError

　ささだです．

　見つからない場合は Object を見に行くようなので，rb_cObject を返すよう
にしてみました．

Index: vm_insnhelper.c
===================================================================
--- vm_insnhelper.c	(リビジョン 20980)
+++ vm_insnhelper.c	(作業コピー)
@@ -1172,20 +1172,24 @@ vm_method_search(VALUE id, VALUE klass,
 static inline VALUE
 vm_search_normal_superclass(VALUE klass, VALUE recv)
 {
+    VALUE sk = 0;
+
     if (BUILTIN_TYPE(klass) == T_CLASS) {
-	klass = RCLASS_SUPER(klass);
+	sk = RCLASS_SUPER(klass);
     }
     else if (BUILTIN_TYPE(klass) == T_MODULE) {
 	VALUE k = CLASS_OF(recv);
 	while (k) {
 	    if (BUILTIN_TYPE(k) == T_ICLASS && RBASIC(k)->klass == klass) {
-		klass = RCLASS_SUPER(k);
+		sk = RCLASS_SUPER(k);
 		break;
 	    }
 	    k = RCLASS_SUPER(k);
 	}
+	sk = rb_cObject;
     }
-    return klass;
+
+    return sk;
 }

 static void

-- 
// SASADA Koichi at atdot dot net