eval.c: preserve encoding

* eval.c (setup_exception): preserve exception class name encoding
  in debug mode messages.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45181 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,4 +1,7 @@
-Wed Feb 26 13:26:21 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Feb 26 14:10:44 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (setup_exception): preserve exception class name encoding
+	  in debug mode messages.
 
 	* eval.c (setup_exception): preserve errinfo across calling #to_s
 	  method on the exception.  [ruby-core:61091] [Bug #9568]

eval.c

@@ -518,16 +518,16 @@ setup_exception(rb_thread_t *th, int tag, volatile VALUE mesg, VALUE cause)
 	    e = rb_obj_as_string(e);
 	    th->errinfo = mesg;
 	    if (file && line) {
-		warn_printf("Exception `%s' at %s:%d - %"PRIsVALUE"\n",
-			    rb_obj_classname(th->errinfo), file, line, e);
+		warn_printf("Exception `%"PRIsVALUE"' at %s:%d - %"PRIsVALUE"\n",
+			    rb_obj_class(mesg), file, line, e);
 	    }
 	    else if (file) {
-		warn_printf("Exception `%s' at %s - %"PRIsVALUE"\n",
-			    rb_obj_classname(th->errinfo), file, e);
+		warn_printf("Exception `%"PRIsVALUE"' at %s - %"PRIsVALUE"\n",
+			    rb_obj_class(mesg), file, e);
 	    }
 	    else {
-		warn_printf("Exception `%s' - %"PRIsVALUE"\n",
-			    rb_obj_classname(th->errinfo), e);
+		warn_printf("Exception `%"PRIsVALUE"' - %"PRIsVALUE"\n",
+			    rb_obj_class(mesg), e);
 	    }
 	}
 	POP_TAG();

test/ruby/test_exception.rb

@@ -100,6 +100,23 @@ class TestException < Test::Unit::TestCase
     assert_include(err, bug9568.to_s)
   end
 
+  def test_errinfo_encoding_in_debug
+    exc = Module.new {break class_eval("class C\u{30a8 30e9 30fc} < RuntimeError; self; end".encode(Encoding::EUC_JP))}
+    exc.inspect
+
+    err = EnvUtil.verbose_warning do
+      assert_raise(exc) do
+        $DEBUG, debug = true, $DEBUG
+        begin
+          raise exc
+        ensure
+          $DEBUG = debug
+        end
+      end
+    end
+    assert_include(err, exc.to_s)
+  end
+
   def test_break_ensure
     bad = true
     while true