Object.seal, read references, and code reliability
akodat at rocketsoftware.com
Tue Aug 15 14:04:25 UTC 2017
Yup, I kinda liked strong mode but the good news/bad news was that you got a lot of behaviors in a single package which was convenient but also problematic if any of the behaviors proved inappropriate for a context.
IMO, improving code reliability is trench warfare where progress is usually measured in inches and while I think Object.guard is a useful tool I’m under no illusions that it’s a game-changer (any more than Object.seal, say). But there are a large number of cases where when a programmer mistakenly types foo.bah as opposed to foo.bar it is inarguably a mistake and you’re doing the programmer a favor by immediately pointing out the error. So if we could catch these cases relatively easily with (almost?) no cost, why not?
I’ll concede that there are issues here that I and others have brought up that suggest that Object.guard is not quite as simple as Object.seal but I believe these issues are not so daunting as to disqualify the feature. But reasonable people could disagree.
As far as performance goes, I don’t see how Object.guard could possibly improve performance. That’s not its purpose.
Senior Product Architect
t: +1 781 684 2294 • m: +1 315 527 4764 • w: www.rocketsoftware.com<http://www.rocketsoftware.com/>
From: Isiah Meadows [mailto:isiahmeadows at gmail.com]
Sent: Tuesday, August 15, 2017 12:57 AM
To: Alex Kodat <akodat at rocketsoftware.com>; Jordan Harband <ljharb at gmail.com>
Cc: es-discuss at mozilla.org
Subject: Re: Object.seal, read references, and code reliability
Just a quick note: Look up "strong mode", an experiment by Google attempting to look for code quality improvement and perf gains for locking class instances by default. I feel it's pretty relevant here, and here's a quick summary of their general findings:
1. It helped code quality only *a little* (stuff better code design could solve better)
2. It had very little gain in performance
Rocket Software, Inc. and subsidiaries ■ 77 Fourth Avenue, Waltham MA 02451 ■ Main Office Toll Free Number: +1 877.328.2932
Contact Customer Support: https://my.rocketsoftware.com/RocketCommunity/RCEmailSupport
Unsubscribe from Marketing Messages/Manage Your Subscription Preferences - http://www.rocketsoftware.com/manage-your-email-preferences
This communication and any attachments may contain confidential information of Rocket Software, Inc. All unauthorized use, disclosure or distribution is prohibited. If you are not the intended recipient, please notify Rocket Software immediately and destroy all copies of this communication. Thank you.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the es-discuss