Feature #12017 ยป 0001-dedupe-string-keys-from-Marshal.load.patch
| marshal.c | ||
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while (len--) {
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VALUE key = r_object(arg);
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VALUE value = r_object(arg);
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if (rb_obj_class(key) == rb_cString) {
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key = rb_fstring(key);
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}
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rb_hash_aset(v, key, value);
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arg->readable -= 2;
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}
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| test/ruby/test_marshal.rb | ||
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obj = [str, str]
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assert_equal(['X', 'X'], Marshal.load(Marshal.dump(obj), ->(v) { v == str ? v.upcase : v }))
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end
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def test_hash_key_dedup
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orig = { 'foo' => 1, 'bar' => 2 }
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loaded = Marshal.load(Marshal.dump(orig))
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assert_equal orig, loaded
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assert_equal orig.keys.map(&:object_id).sort,
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loaded.keys.map(&:object_id).sort
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end
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end
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-
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