* ext/zlib/zlib.c (zstream_shift_buffer): should restore class

  field of a buffer.  [ruby-dev:24562]

* eval.c (rb_alias): should warn on method discarding.
  [ruby-dev:24546]

* ext/zlib/zlib.c (zstream_expand_buffer_into): hide internal
  string buffer by clearing klass.  [ruby-dev:24548]


git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_8@7098 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 0 deletions

diff --git a/eval.c b/eval.c
index 84ffab318..7a1d6a891 100644
--- a/eval.c
+++ b/eval.c
@@ -2009,6 +2009,9 @@ rb_alias(klass, name, def)
     if (FL_TEST(klass, FL_SINGLETON)) {
 	singleton = rb_iv_get(klass, "__attached__");
     }
+    if (RTEST(ruby_verbose) && klass == origin && orig->nd_cnt == 0 && orig->nd_body) {
+	rb_warning("discarding old %s", rb_id2name(name));
+    }
     body = orig->nd_body;
     orig->nd_cnt++;
     if (nd_type(body) == NODE_FBODY) { /* was alias */