From 09eae5ceb2e9e7e509864091e2400af4ca3bfce1 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Sat, 13 Apr 2013 10:03:34 +0900
Subject: move no block check to mrb_yield_internal

---
 src/vm.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/vm.c')

diff --git a/src/vm.c b/src/vm.c
index 13058fc28..9224c7a40 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -392,6 +392,9 @@ mrb_yield_internal(mrb_state *mrb, mrb_value b, int argc, mrb_value *argv, mrb_v
   int n = mrb->ci->nregs;
   mrb_value val;
 
+  if (mrb_nil_p(b)) {
+    mrb_raise(mrb, E_ARGUMENT_ERROR, "no block given");
+  }
   p = mrb_proc_ptr(b);
   ci = cipush(mrb);
   ci->mid = mid;
-- 
cgit v1.2.3