From e46471e90c656b6a4c0e6c6846040e51448c2255 Mon Sep 17 00:00:00 2001
From: shugo <shugo@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 30 Oct 2012 14:58:47 +0000
Subject: [PATCH] * eval.c (rb_mod_refine): fix the error message when no block
 is   given.  [ruby-dev:46319] [Bug #7244]

* test/ruby/test_refinement.rb: related test.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37390 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog                    |  7 +++++++
 eval.c                       |  3 +++
 test/ruby/test_refinement.rb | 10 ++++++++++
 3 files changed, 20 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 8890e66f41..40dba2f755 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+Tue Oct 30 23:59:32 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (rb_mod_refine): fix the error message when no block is
+	  given.  [ruby-dev:46319] [Bug #7244]
+
+	* test/ruby/test_refinement.rb: related test.
+
 Tue Oct 30 19:27:48 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* process.c (redirect_dup2): set standard handles when new fd is stdio,
diff --git a/eval.c b/eval.c
index 6bac9ca7c7..c1d22d66fa 100644
--- a/eval.c
+++ b/eval.c
@@ -1203,6 +1203,9 @@ rb_mod_refine(VALUE module, VALUE klass)
     ID id_refinements, id_refined_class;
     VALUE refinements;
 
+    if (!rb_block_given_p()) {
+        rb_raise(rb_eArgError, "no block given");
+    }
     check_class_or_module(klass);
     CONST_ID(id_refinements, "__refinements__");
     refinements = rb_attr_get(module, id_refinements);
diff --git a/test/ruby/test_refinement.rb b/test/ruby/test_refinement.rb
index 6a1a1ccf80..fe1e23b656 100644
--- a/test/ruby/test_refinement.rb
+++ b/test/ruby/test_refinement.rb
@@ -520,4 +520,14 @@ class TestRefinement < Test::Unit::TestCase
     }
     assert_equal({c2 => c2_ext}, m2.refinements)
   end
+
+  def test_refine_without_block
+    c1 = Class.new
+    e = assert_raise(ArgumentError) {
+      Module.new do
+        refine c1
+      end
+    }
+    assert_equal("no block given", e.message)
+  end
 end