* lib/ostruct.rb: raise NoMethodError with a #name and #args.

  Patch by Kenichi Kamiya. [Fixes GH-383]

* test/ostruct/test_ostruct.rb: Added tests for above.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43405 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 24 insertions, 1 deletions

diff --git a/ChangeLog b/ChangeLog
index f677d271c1..ff4fcdabb2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+Thu Oct 24 00:11:24 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/ostruct.rb: raise NoMethodError with a #name and #args.
+	  Raise RuntimeError when modifying frozen instances
+      instead of TypeError.
+      (OpenStruct#each_pair): Return an enumerator with size
+	  (OpenStruct#delete): Use the converted argument.
+      Patches by Kenichi Kamiya. [Fixes GH-383]
+
+	* test/ostruct/test_ostruct.rb: Added tests for above.
+
 Thu Oct 24 00:10:22 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
 	* array.c: Add Array#to_h [Feature #7292]
diff --git a/lib/ostruct.rb b/lib/ostruct.rb
index d3aea636a1..f51eb7b5db 100644
--- a/lib/ostruct.rb
+++ b/lib/ostruct.rb
@@ -184,7 +184,9 @@ class OpenStruct
     elsif len == 0
       @table[mid]
     else
-      raise NoMethodError, "undefined method `#{mid}' for #{self}", caller(1)
+      err = NoMethodError.new "undefined method `#{mid}' for #{self}", mid, args
+      err.set_backtrace caller(1)
+      raise err
     end
   end
 
diff --git a/test/ostruct/test_ostruct.rb b/test/ostruct/test_ostruct.rb
index a28abe5211..70335f44af 100644
--- a/test/ostruct/test_ostruct.rb
+++ b/test/ostruct/test_ostruct.rb
@@ -125,4 +125,14 @@ class TC_OpenStruct < Test::Unit::TestCase
     assert_equal true, os1.eql?(os1.dup)
     assert_equal os1.hash, os1.dup.hash
   end
+
+  def test_method_missing
+    os = OpenStruct.new
+    e = assert_raise(NoMethodError) { os.foo true }
+    assert_equal :foo, e.name
+    assert_equal [true], e.args
+    assert_match /#{__callee__}/, e.backtrace[0]
+    e = assert_raise(ArgumentError) { os.send :foo=, true, true }
+    assert_match /#{__callee__}/, e.backtrace[0]
+  end
 end