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-rw-r--r--ChangeLog6
-rw-r--r--hash.c5
-rw-r--r--test/ruby/test_hash.rb9
3 files changed, 19 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index 53144e35c3..b3c1b815b4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Thu Oct 18 09:23:03 2012 Aaron Patterson <aaron@tenderlovemaking.com>
+
+ * hash.c (initialize_copy): duping should rehash the hash.
+
+ * test/ruby/test_hash.rb: added a test to ensure rehash.
+
Wed Oct 17 21:16:47 2012 Hiroshi Shirosaki <h.shirosaki@gmail.com>
* common.mk (WPROGRAM): need same dependencies as PROGRAM.
diff --git a/hash.c b/hash.c
index 5172e13b57..bf9dbd5467 100644
--- a/hash.c
+++ b/hash.c
@@ -1187,8 +1187,11 @@ rb_hash_initialize_copy(VALUE hash, VALUE hash2)
{
Check_Type(hash2, T_HASH);
- if (!RHASH_EMPTY_P(hash2))
+ if (!RHASH_EMPTY_P(hash2)) {
RHASH(hash)->ntbl = st_copy(RHASH(hash2)->ntbl);
+ rb_hash_rehash(hash);
+ }
+
if (FL_TEST(hash2, HASH_PROC_DEFAULT)) {
FL_SET(hash, HASH_PROC_DEFAULT);
}
diff --git a/test/ruby/test_hash.rb b/test/ruby/test_hash.rb
index f1eef88d99..076146f5a4 100644
--- a/test/ruby/test_hash.rb
+++ b/test/ruby/test_hash.rb
@@ -100,6 +100,15 @@ class TestHash < Test::Unit::TestCase
assert_raises(TypeError) { h.dup }
end
+ def test_dup_will_rehash
+ set1 = { }
+ set2 = { set1 => true}
+
+ set1[set1] = true
+
+ assert_equal set2, set2.dup
+ end
+
def test_s_AREF
h = @cls["a" => 100, "b" => 200]
assert_equal(100, h['a'])