nobu	2010-03-17 16:25:58 +0900 (Wed, 17 Mar 2010)

  New Revision: 26961

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=26961

  Log:
    * hash.c (rb_hash_aset): allow recursive key.  [ruby-core:24648]

  Modified files:
    trunk/ChangeLog
    trunk/hash.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 26960)
+++ ChangeLog	(revision 26961)
@@ -1,3 +1,7 @@
+Wed Mar 17 16:25:53 2010  Nobuyoshi Nakada  <nobu@r...>
+
+	* hash.c (rb_hash_aset): allow recursive key.  [ruby-core:24648]
+
 Wed Mar 17 06:39:59 2010  Nobuyoshi Nakada  <nobu@r...>
 
 	* ruby.h (rb_warning, rb_sys_warning): fixed typo in rdoc.
Index: hash.c
===================================================================
--- hash.c	(revision 26960)
+++ hash.c	(revision 26961)
@@ -1096,9 +1096,6 @@
 {
     rb_hash_modify(hash);
     hash_update(hash, key);
-    if (hash == key) {
-	rb_raise(rb_eArgError, "recursive key for hash");
-    }
     if (RHASH(hash)->ntbl->type == &identhash || rb_obj_class(key) != rb_cString) {
 	st_insert(RHASH(hash)->ntbl, key, val);
     }

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