[Bug 27955] share an immutable object between threads

• From: <bugzilla@jessica.w3.org>
• Date: Thu, 05 Feb 2015 14:21:00 +0000
• To: public-html-bugzilla@w3.org
• Message-ID: <bug-27955-2486-uBOE8wpgIy@http.www.w3.org/Bugs/Public/>

https://www.w3.org/Bugs/Public/show_bug.cgi?id=27955

--- Comment #3 from Boris Zbarsky <bzbarsky@mit.edu> ---
> There is already Object.freeze which works on ArrayBuffer

Object.freeze on an ArrayBuffer doesn't prevent mutation of its data:

  var buf = new ArrayBuffer(1);
  var view = new Uint8Array(buf);
  view[0] = 5;
  alert(view[0]);
  Object.freeze(buf);
  view[0] = 7;
  var view2 = new Uint8Array(buf);
  alert(view2[0]);

dherman's proposal is a strict superset of yours, looks like; I think it ran
into implementation difficulties...

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Received on Thursday, 5 February 2015 14:21:03 UTC