From: "matz (Yukihiro Matsumoto)" <noreply@...>
Date: 2022-12-01T08:06:38+00:00
Subject: [ruby-dev:52007]  [Ruby master Feature#19163] Data object should be frozen

Issue #19163 has been reported by matz (Yukihiro Matsumoto).

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Feature #19163: Data object should be frozen
https://bugs.ruby-lang.org/issues/19163

* Author: matz (Yukihiro Matsumoto)
* Status: Open
* Priority: Normal
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If we call `initialize` (via `send`), we can rewrite an existing Data object.

```ruby
d=Data.define(:a, :b).new(1,2)
p d #=> #<data a=1, b=2>
d.send(:initialize, {a:3,b:4})
p d #=> #<data a=3, b=4>
```

Should we freeze the Data object after calling `initialize` for the first time?

Matz.



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