From b5354a1ede4d0b4d7660e9bda87ab8c7f1ff6177 Mon Sep 17 00:00:00 2001
From: Seiei Higa <hanachin@gmail.com>
Date: Sun, 18 Jan 2015 03:00:28 +0900
Subject: [PATCH] vm_method.c: method defined should not use refinements.

* vm_method.c (check_definition): Module#public_method_defined?,
  Module#private_method_defined?, Module#protected_method_defined?
  should not use refinements. [ruby-core:67656] [Bug #10753]
---
 test/ruby/test_refinement.rb | 75 ++++++++++++++++++++++++++++++++++++++++++++
 vm_method.c                  |  2 +-
 2 files changed, 76 insertions(+), 1 deletion(-)

diff --git a/test/ruby/test_refinement.rb b/test/ruby/test_refinement.rb
index 596c679..df16254 100644
--- a/test/ruby/test_refinement.rb
+++ b/test/ruby/test_refinement.rb
@@ -1235,6 +1235,81 @@ def foo
     end;
   end
 
+  def test_refined_method_defined
+    assert_separately([], <<-"end;")
+    bug10753 = '[ruby-core:67656] [Bug #10753]'
+
+    c = Class.new do
+      def refined_public; end
+      def refined_protected; end
+      def refined_private; end
+
+      public :refined_public
+      protected :refined_protected
+      private :refined_private
+    end
+
+    m = Module.new do
+      refine(c) do
+        def refined_public; end
+        def refined_protected; end
+        def refined_private; end
+
+        public :refined_public
+        protected :refined_protected
+        private :refined_private
+      end
+    end
+
+    using m
+
+    assert_equal(true, c.public_method_defined?(:refined_public), bug10753)
+    assert_equal(false, c.public_method_defined?(:refined_protected), bug10753)
+    assert_equal(false, c.public_method_defined?(:refined_private), bug10753)
+
+    assert_equal(false, c.protected_method_defined?(:refined_public), bug10753)
+    assert_equal(true, c.protected_method_defined?(:refined_protected), bug10753)
+    assert_equal(false, c.protected_method_defined?(:refined_private), bug10753)
+
+    assert_equal(false, c.private_method_defined?(:refined_public), bug10753)
+    assert_equal(false, c.private_method_defined?(:refined_protected), bug10753)
+    assert_equal(true, c.private_method_defined?(:refined_private), bug10753)
+    end;
+  end
+
+  def test_undefined_refined_method_defined
+    assert_separately([], <<-"end;")
+    bug10753 = '[ruby-core:67656] [Bug #10753]'
+
+    c = Class.new
+
+    m = Module.new do
+      refine(c) do
+        def undefined_refined_public; end
+        def undefined_refined_protected; end
+        def undefined_refined_private; end
+        public :undefined_refined_public
+        protected :undefined_refined_protected
+        private :undefined_refined_private
+      end
+    end
+
+    using m
+
+    assert_equal(false, c.public_method_defined?(:undefined_refined_public), bug10753)
+    assert_equal(false, c.public_method_defined?(:undefined_refined_protected), bug10753)
+    assert_equal(false, c.public_method_defined?(:undefined_refined_private), bug10753)
+
+    assert_equal(false, c.protected_method_defined?(:undefined_refined_public), bug10753)
+    assert_equal(false, c.protected_method_defined?(:undefined_refined_protected), bug10753)
+    assert_equal(false, c.protected_method_defined?(:undefined_refined_private), bug10753)
+
+    assert_equal(false, c.private_method_defined?(:undefined_refined_public), bug10753)
+    assert_equal(false, c.private_method_defined?(:undefined_refined_protected), bug10753)
+    assert_equal(false, c.private_method_defined?(:undefined_refined_private), bug10753)
+    end;
+  end
+
   private
 
   def eval_using(mod, s)
diff --git a/vm_method.c b/vm_method.c
index 2934754..eab12f0 100644
--- a/vm_method.c
+++ b/vm_method.c
@@ -1061,7 +1061,7 @@ check_definition(VALUE mod, VALUE mid, rb_method_flag_t noex)
     const rb_method_entry_t *me;
     ID id = rb_check_id(&mid);
     if (!id) return Qfalse;
-    me = rb_method_entry(mod, id, 0);
+    me = rb_method_entry_without_refinements(mod, id, 0);
     if (me) {
 	if (VISI_CHECK(me->flag, noex))
 	    return Qtrue;
-- 
2.2.1