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You're comparing apples and oranges here. Rendering engines (all in C++ except Servo): - Servo - Blink (Chrome/Opera) - Trident/Spartan (IE/Edge) - Webkit

You're comparing apples and oranges here. Rendering engines (all in C++ except Servo): - Servo - Blink (Chrome/Opera) - Trident/Spartan (IE/Edge) - Webkit (Safari) JS engines: - Spidermonkey (used by Servo and Firefox) - Chakra (used by Trident/Edge) - V8 (used by Blink, also by Node) Servo already uses a JS engine in C++ because a Rust JS engine is a huge undertaking in itself (see [1]) It does make sense to try out Chakra or V8 for Servo. It's probably a lot of work, though. And there may not be a net gain out of that (We have access to in-house spidermonkey know-how, none of that for the others). [1]: https://news.ycombinator.com/item?id=10682274 https://news.ycombinator.com/item?id=10682274

nly 11y ago
My bad, I meant JavascriptCore or the JS engines often paired with WebKit. What I meant was, why pair Servo with Chakra and not any of the other Javascript engines?
apaprocki 11y ago
I have a vested interest in creating a SM -> Chakra adapter to swap out SpiderMonkey and be able to compare it to see how it does because Chakra is also an interpreter and not JIT-only like V8. Such an adapter would also make playing with Servo -> Chakra possible. I haven't play with Servo, but is there a list of all the JSAPI calls that it needs to function or can you easily dump that list?
- Natanael_L 11y ago
  https://news.ycombinator.com/item?id=10682291 https://news.ycombinator.com/item?id=10682291 this?
  - Manishearth 11y ago
    Yep. See also: https://github.com/servo/rust-mozjs https://github.com/servo/rust-mozjs
- Manishearth 11y ago
  The comments below link to the bindings (rust-mozjs is the Rust API, but the parts of it we use are in components/script/dom/bindings). Here's a `git grep jsapi` on that folder: https://manishearth.pastebin.mozilla.org/8853940 https://manishearth.pastebin.mozilla.org/8853940. Haven't removed duplicates or formatted it, so it's probably much shorter than it looks. Please keep me posted about this!
seba_dos1 11y ago
Webkit uses JavaScriptCore, not V8.
- Manishearth 11y ago
  TIL; fixed, thanks.

nly 11y ago

My bad, I meant JavascriptCore or the JS engines often paired with WebKit. What I meant was, why pair Servo with Chakra and not any of the other Javascript engines?

apaprocki 11y ago

I have a vested interest in creating a SM -> Chakra adapter to swap out SpiderMonkey and be able to compare it to see how it does because Chakra is also an interpreter and not JIT-only like V8. Such an adapter would also make playing with Servo -> Chakra possible. I haven't play with Servo, but is there a list of all the JSAPI calls that it needs to function or can you easily dump that list?

Natanael_L 11y ago
https://news.ycombinator.com/item?id=10682291 https://news.ycombinator.com/item?id=10682291 this?
- Manishearth 11y ago
  Yep. See also: https://github.com/servo/rust-mozjs https://github.com/servo/rust-mozjs
Manishearth 11y ago
The comments below link to the bindings (rust-mozjs is the Rust API, but the parts of it we use are in components/script/dom/bindings). Here's a `git grep jsapi` on that folder: https://manishearth.pastebin.mozilla.org/8853940 https://manishearth.pastebin.mozilla.org/8853940. Haven't removed duplicates or formatted it, so it's probably much shorter than it looks. Please keep me posted about this!

seba_dos1 11y ago

Webkit uses JavaScriptCore, not V8.

Manishearth 11y ago
TIL; fixed, thanks.