date_core.c: respect COMPLEX_DAT bit

* ext/date/date_core.c (d_lite_marshal_load): respect COMPLEX_DAT
  bit in the pre-allocated structure.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65698 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 0 deletions

diff --git a/test/date/test_date_marshal.rb b/test/date/test_date_marshal.rb
index 24622bd4b9..c7ce737aac 100644
--- a/test/date/test_date_marshal.rb
+++ b/test/date/test_date_marshal.rb
@@ -41,4 +41,12 @@ class TestDateMarshal < Test::Unit::TestCase
     assert_raise(expected_error){d.marshal_load(a)}
   end
 
+  def test_memsize
+    require 'objspace'
+    t = DateTime.new(2018, 11, 13)
+    size = ObjectSpace.memsize_of(t)
+    t2 = Marshal.load(Marshal.dump(t))
+    assert_equal(t, t2)
+    assert_equal(size, ObjectSpace.memsize_of(t2), "not reallocated but memsize changed")
+  end
 end