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-rw-r--r--ChangeLog6
-rw-r--r--hash.c4
-rw-r--r--test/ruby/test_hash.rb6
3 files changed, 15 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index 5806882d17..84da1f7b12 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Wed Nov 27 14:24:55 2013 Aman Gupta <ruby@tmm1.net>
+
+ * hash.c (hash_aset_str): Use rb_fstring() to de-duplicate hash string
+ keys. Patch by Eric Wong. [Bug #8998] [ruby-core:57727]
+ * test/ruby/test_hash.rb (class TestHash): test for above.
+
Wed Nov 27 10:39:39 2013 Aman Gupta <ruby@tmm1.net>
* gc.c: Rename rb_heap_t members:
diff --git a/hash.c b/hash.c
index 9944b5f4b1..670e7adc12 100644
--- a/hash.c
+++ b/hash.c
@@ -1262,7 +1262,9 @@ static int
hash_aset_str(st_data_t *key, st_data_t *val, struct update_arg *arg, int existing)
{
if (!existing) {
- *key = rb_str_new_frozen((VALUE)*key);
+ VALUE str = (VALUE)*key;
+ if (!OBJ_FROZEN(str))
+ *key = rb_fstring((VALUE)*key);
}
return hash_aset(key, val, arg, existing);
}
diff --git a/test/ruby/test_hash.rb b/test/ruby/test_hash.rb
index 5f72dec5f4..49b74c7257 100644
--- a/test/ruby/test_hash.rb
+++ b/test/ruby/test_hash.rb
@@ -209,6 +209,12 @@ class TestHash < Test::Unit::TestCase
assert_equal(256, h[z])
end
+ def test_ASET_string
+ a = {"ABC" => :t}
+ b = {"ABC" => :t}
+ assert_equal a.keys[0].object_id, b.keys[0].object_id
+ end
+
def test_EQUAL # '=='
h1 = @cls[ "a" => 1, "c" => 2 ]
h2 = @cls[ "a" => 1, "c" => 2, 7 => 35 ]