* variable.c (rb_obj_classname): new function.

* string.c (rb_str_dup): should preserve original's class (but not
  hidden singleton class).

* string.c (rb_str_substr): ditto.

* parse.y: backout EXPR_CMDARG removal.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3427 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 7 insertions, 0 deletions

diff --git a/variable.c b/variable.c
index b2d78ce317..27704111e2 100644
--- a/variable.c
+++ b/variable.c
@@ -311,6 +311,13 @@ rb_class2name(klass)
     return RSTRING(rb_class_path(klass))->ptr;
 }
 
+char *
+rb_obj_classname(obj)
+    VALUE obj;
+{
+    return rb_obj_classname(obj);
+}
+
 struct trace_var {
     int removed;
     void (*func)();