From: Eric Wong <normalperson@...>
Date: 2013-12-30T06:14:03+00:00
Subject: [ruby-core:59396] Re: [ruby-trunk - Feature #9278] Magic comment "immutable: string" makes "literal".freeze the default for that file

"jacknagel (Jack Nagel)" <redmine@ruby-lang.org> wrote:
> It seems like it would be logical for the VM to automatically
> freeze/dedup string literal keys in hash literals and hash lookups. Is
> there a reason that can't be done?

That's a goal: https://bugs.ruby-lang.org/issues/8998
Just need the time/effort.