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TC39 Roundup Drama Edition Part I: Shared Structs
Manage episode 453447581 series 3531609
Content provided by Surma and Jake Archibald. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Surma and Jake Archibald or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.
In this episode, Surma talks about the Stage 2 proposal "JavaScript Struct", which introduces fixed-layout objects and the ability to share them between realms.
Notes & Corrections from Shu:Surma was slightly wrong about why private fields were originally considered problematic for sharability. The problem occurs when a class can be evaluated multiple times:
function makeClass() { return class MyClass { #priv; getPrivateField(instance) { return instance.#priv; } }; } const C1 = makeClass(); const C2 = makeClass(); const i1 = new C1(); const i2 = new C2(); // this throws! i1.getPrivateField(i2);This behavior makes it hard to compile private fields just as "slots" on an object, as clearly additional behavior is required. This is somewhat at odds with the goal of achieving a fixed layout.
Also, launching is mid-2025 is very optimistic.
Resources:- SharedArrayBuffer
- Structs proposal
- Return overrides
- Records & Tuples proposal
- Surma’s buffer-backed-object library for SharedArrayBuffer
16 episodes
Share
Manage episode 453447581 series 3531609
Content provided by Surma and Jake Archibald. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Surma and Jake Archibald or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.
In this episode, Surma talks about the Stage 2 proposal "JavaScript Struct", which introduces fixed-layout objects and the ability to share them between realms.
Notes & Corrections from Shu:Surma was slightly wrong about why private fields were originally considered problematic for sharability. The problem occurs when a class can be evaluated multiple times:
function makeClass() { return class MyClass { #priv; getPrivateField(instance) { return instance.#priv; } }; } const C1 = makeClass(); const C2 = makeClass(); const i1 = new C1(); const i2 = new C2(); // this throws! i1.getPrivateField(i2);This behavior makes it hard to compile private fields just as "slots" on an object, as clearly additional behavior is required. This is somewhat at odds with the goal of achieving a fixed layout.
Also, launching is mid-2025 is very optimistic.
Resources:- SharedArrayBuffer
- Structs proposal
- Return overrides
- Records & Tuples proposal
- Surma’s buffer-backed-object library for SharedArrayBuffer
16 episodes
All episodes
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Similar to Off The Main Thread
Africa-focused technology, digital and innovation ecosystem insight and commentary.
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continue reading
Show notes are at https://stevelitchfield.com/sshow/chat.html
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continue reading
The American healthcare system is one of the most innovative in the world. But it’s also riddled with complex challenges, such as access to affordable medications, inefficiency and administrative burdens, and communication barriers between providers. There’s clearly a better way—and at Surescripts, we have a unique sightline into what that may be. In this series, host Melanie Marcus, Chief Marketing Officer of Surescripts, sits down with today’s most inspiring and innovative leaders in healt ...
…
continue reading
Android Backstage, a podcast by and for Android developers. Hosted by developers from the Android engineering team, this show covers topics of interest to Android programmers, with in-depth discussions and interviews with engineers on the Android team at Google. Subscribe to Android Developers YouTube → https://goo.gle/AndroidDevs
…
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The power of Data is undeniable. And unharnessed - it’s nothing but chaos. Making data your ally. Using it to lead with confidence and clarity. Host Jess Carter is solving problems in real-time to reveal what’s possible. Helping communities and people thrive. This is Data Driven Leadership, a show brought to you by Resultant.
…
continue reading
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…
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This is the audio podcast version of Troy Hunt's weekly update video published here: https://www.troyhunt.com/tag/weekly-update/
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continue reading
The director’s commentary track for Daring Fireball. Long digressions on Apple, technology, design, movies, and more.
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Player FM - Podcast App
Go offline with the Player FM app!
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