proc.c: respond_to_missing? at Method

* proc.c (respond_to_missing_p): check if the receiver responds to
  the given method by respond_to_missing?.
* proc.c (mnew_missing): create Method object for method_missing.
  [ruby-core:68564] [Bug #10985]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50038 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 22 insertions, 0 deletions

diff --git a/test/-ext-/symbol/test_inadvertent_creation.rb b/test/-ext-/symbol/test_inadvertent_creation.rb
index 081debdd29..c7c8b5ace5 100644
--- a/test/-ext-/symbol/test_inadvertent_creation.rb
+++ b/test/-ext-/symbol/test_inadvertent_creation.rb
@@ -82,6 +82,28 @@ module Test_Symbol
       assert_not_interned_false(c, :class_variable_defined?, noninterned_name("@@"), feature5072)
     end
 
+    def test_missing_method
+      bug10985 = '[ruby-core:68564] [Bug #10985]'
+      m = nil
+      c = Class.new do
+        def self.respond_to_missing?(*)
+          true
+        end
+      end
+
+      s = noninterned_name
+      assert_nothing_raised(NameError, bug10985) {m = c.method(s)}
+      assert_raise_with_message(NoMethodError, /#{s}/) {m.call}
+
+      s = noninterned_name
+      assert_nothing_raised(NameError, bug10985) {m = c.public_method(s.to_sym)}
+      assert_raise_with_message(NoMethodError, /#{s}/) {m.call}
+
+      s = noninterned_name
+      assert_nothing_raised(NameError, bug10985) {m = c.singleton_method(s.to_sym)}
+      assert_raise_with_message(NoMethodError, /#{s}/) {m.call}
+    end
+
     Feature5079 = '[ruby-core:38404]'
 
     def test_undefined_instance_variable