vm_eval.c: rb_current_receiver

* vm_eval.c (rb_current_receiver): new function to return the
  receiver in the current control frame.  [Feature #10195]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48462 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 0 deletions

diff --git a/vm_eval.c b/vm_eval.c
index 0d47aacf30..0f2b19053d 100644
--- a/vm_eval.c
+++ b/vm_eval.c
@@ -290,6 +290,16 @@ rb_call_super(int argc, const VALUE *argv)
     return vm_call_super(GET_THREAD(), argc, argv);
 }
 
+VALUE
+rb_current_receiver(void)
+{
+    rb_thread_t *th = GET_THREAD();
+    rb_control_frame_t *cfp;
+    if (!th || !(cfp = th->cfp))
+	rb_raise(rb_eRuntimeError, "no self, no life");
+    return cfp->self;
+}
+
 static inline void
 stack_check(void)
 {