Re: Mutability of CryptoOperationData from Alexey Proskuryakov on 2013-10-26 (public-webcrypto@w3.org from October 2013)

From: Alexey Proskuryakov <ap@webkit.org>
Date: Fri, 25 Oct 2013 23:05:02 -0700
To: Ryan Sleevi <sleevi@google.com>
Cc: public-webcrypto@w3.org
Message-id: <3B6D1ECF-C997-452A-A791-B26406267A90@webkit.org>

25 окт. 2013 г., в 22:51, Ryan Sleevi <sleevi@google.com> написал(а):
> I dislike having to have side effects on the inputs, especially since sequence is defined to make a copy (as opposed to array).
> 
> This implies copy/copy-on-write already, per WebIDL, unless I'm incorrectly interpreting the sequence semantics.
> 

I think that the sequence itself is copied, but it’s not a deep copy. So no, the spec currently doesn’t resolve issues caused by mutability of ArrayBuffers.

Suggesting copy on write would be somewhat unprecedented I think. I don’t have a strong opinion about copy on write vs. freezing, but I imagine that TC39 folks may have such.

- WBR, Alexey Proskuryakov

Received on Saturday, 26 October 2013 06:05:31 UTC