Module#prepend

* class.c (rb_prepend_module): prepend module into another module.
* eval.c (rb_mod_prepend): new method Module#prepend.  [Feature #1102]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36234 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 32 insertions, 0 deletions

diff --git a/test/ruby/test_module.rb b/test/ruby/test_module.rb
index b24fa3222d..decb217289 100644
--- a/test/ruby/test_module.rb
+++ b/test/ruby/test_module.rb
@@ -1238,4 +1238,36 @@ class TestModule < Test::Unit::TestCase
     INPUT
     assert_in_out_err([], src, ["NameError"], [])
   end
+
+  module M0
+    def m1; [:M0] end
+  end
+  module M1
+    def m1; [:M1, super, :M1] end
+  end
+  module M2
+    def m1; [:M2, super, :M2] end
+  end
+  M3 = Module.new do
+    def m1; [:M3, super, :M3] end
+  end
+  module M4
+    def m1; [:M4, super, :M4] end
+  end
+  class C0
+    include M0
+    prepend M1
+    def m1; [:C0, super, :C0] end
+  end
+  class C1 < C0
+    prepend M2, M3
+    include M4
+    def m1; [:C1, super, :C1] end
+  end
+
+  def test_prepend
+    obj = C1.new
+    expected = [:M2,[:M3,[:C1,[:M4,[:M1,[:C0,[:M0],:C0],:M1],:M4],:C1],:M3],:M2]
+    assert_equal(expected, obj.m1)
+  end
 end