merge revision(s) 13586:

	* eval.c (remove_method): should not remove undef place holder.
	  [ruby-dev:31817]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_6@16816 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 13 insertions, 3 deletions

diff --git a/ChangeLog b/ChangeLog
index 8455acaadf..364e3613d8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -14,6 +14,11 @@ Tue Jun  3 15:45:00 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 	* gc.c (os_obj_of, os_each_obj): hide objects to be finalized.
 	  [ruby-dev:31810]
 
+Wed Jun  4 19:16:40 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* eval.c (remove_method): should not remove undef place holder.
+	  [ruby-dev:31817]
+
 Tue Jun  3 15:22:47 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* process.c (struct rb_exec_arg): proc should be a VALUE.
diff --git a/eval.c b/eval.c
index c12c08b5d9..8bb4bb1f15 100644
--- a/eval.c
+++ b/eval.c
@@ -569,8 +569,13 @@ remove_method(klass, mid)
     if (mid == __id__ || mid == __send__ || mid == init) {
 	rb_warn("removing `%s' may cause serious problem", rb_id2name(mid));
     }
-    if (!st_delete(RCLASS(klass)->m_tbl, &mid, (st_data_t *)&body) ||
-	!body->nd_body) {
+    if (st_lookup(RCLASS(klass)->m_tbl, mid, (st_data_t *)&body)) {
+	if (!body || !body->nd_body) body = 0;
+	else {
+	    st_delete(RCLASS(klass)->m_tbl, &mid, (st_data_t *)&body);
+	}
+    }
+    if (!body) {
 	rb_name_error(mid, "method `%s' not defined in %s",
 		      rb_id2name(mid), rb_class2name(klass));
     }
diff --git a/version.h b/version.h
index 513e84085c..de04faea90 100644
--- a/version.h
+++ b/version.h
@@ -2,7 +2,7 @@
 #define RUBY_RELEASE_DATE "2008-06-04"
 #define RUBY_VERSION_CODE 186
 #define RUBY_RELEASE_CODE 20080604
-#define RUBY_PATCHLEVEL 124
+#define RUBY_PATCHLEVEL 125
 
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 8