vm_insnhelper.c: disable fastpath if splat

* vm_insnhelper.c (vm_callee_setup_arg): disable fastpath if splat
  argument, since argc may differ for each calls.
  [ruby-core:61422] [Bug #9622]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45321 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 15 insertions, 0 deletions

diff --git a/test/ruby/test_call.rb b/test/ruby/test_call.rb
index 8f861d96a1..5b81eb187a 100644
--- a/test/ruby/test_call.rb
+++ b/test/ruby/test_call.rb
@@ -16,4 +16,19 @@ class TestCall < Test::Unit::TestCase
     assert_equal([1, 2, 3, 4], aaa(1, 2, 3, 4))
     assert_equal([1, 2, 3, 4], aaa(1, *[2, 3, 4]))
   end
+
+  def test_callinfo
+    bug9622 = '[ruby-core:61422] [Bug #9622]'
+    o = Class.new do
+      def foo(*args)
+        bar(:foo, *args)
+      end
+      def bar(name)
+        name
+      end
+    end.new
+    e = assert_raise(ArgumentError) {o.foo(100)}
+    assert_nothing_raised(ArgumentError) {o.foo}
+    assert_raise_with_message(ArgumentError, e.message, bug9622) {o.foo(100)}
+  end
 end