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

nobu · nobu · commit 4067fd028dfd · 2010-03-17T07:25:58.000Z
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26961 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
diff --git a/ChangeLog b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Mar 17 16:25:53 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_hash_aset): allow recursive key.  [ruby-core:24648]
+
 Wed Mar 17 06:39:59 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ruby.h (rb_warning, rb_sys_warning): fixed typo in rdoc.
diff --git a/hash.c b/hash.c
@@ -1096,9 +1096,6 @@ rb_hash_aset(VALUE hash, VALUE key, VALUE val)
 {
     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);
     }

Original file line number	Diff line number	Diff line change
`@@ -1096,9 +1096,6 @@ rb_hash_aset(VALUE hash, VALUE key, VALUE val)`
`1096`	`1096`	`{`
`1097`	`1097`	`rb_hash_modify(hash);`
`1098`	`1098`	`hash_update(hash, key);`
`1099`		`- if (hash == key) {`
`1100`		`- rb_raise(rb_eArgError, "recursive key for hash");`
`1101`		`- }`
`1102`	`1099`	`if (RHASH(hash)->ntbl->type == &identhash \|\| rb_obj_class(key) != rb_cString) {`
`1103`	`1100`	`st_insert(RHASH(hash)->ntbl, key, val);`
`1104`	`1101`	`}`