merge revision(s) 50172,50173: [Backport #11027]

	* vm_args.c: protect value stack from calling other methods
	  during complex parameter setting process (splat, kw, and so on).
	  [Bug #11027]

	* vm_core.h: remove rb_thead_t::mark_stack_len.
	  With this modification, we don't need to use th->mark_stack_len.

	* test/ruby/test_keyword.rb: add a test.

	* cont.c (cont_capture): catch up this fix.

	* vm.c (rb_thread_mark): ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@50562 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 0 deletions

diff --git a/test/ruby/test_keyword.rb b/test/ruby/test_keyword.rb
index 70cdba1db2..9c76e15c38 100644
--- a/test/ruby/test_keyword.rb
+++ b/test/ruby/test_keyword.rb
@@ -566,4 +566,14 @@ class TestKeywordArguments < Test::Unit::TestCase
     result = m(["a" => 10]) { |a = nil, **b| [a, b] }
     assert_equal([{"a" => 10}, {}], result)
   end
+
+  def method_for_test_to_hash_call_during_setup_complex_parameters k1:, k2:, **rest_kw
+    [k1, k2, rest_kw]
+  end
+
+  def test_to_hash_call_during_setup_complex_parameters
+    sym = "sym_#{Time.now}".to_sym
+    h = method_for_test_to_hash_call_during_setup_complex_parameters k1: "foo", k2: "bar", sym => "baz"
+    assert_equal ["foo", "bar", {sym => "baz"}], h, '[Bug #11027]'
+  end
 end