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Fleshed out Luau Recap for March 2021

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ajeffrey@roblox.com 2021-03-29 16:38:55 -05:00
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@ -9,16 +9,39 @@ Luau is our new language that you can read more about at [https://roblox.github.
## Typed variadics
[TODO]
## Generic functions
[TODO]
## Typechecking improvements
* Check bodies of methods whose `self` has type `any`
* More precise types for `debug.*` methods
* Better typechecking for `Instance:IsA`.
## Performance improvements
## Debugger improvements
* Optimized `coroutine.resume`
(a 10% speed-up in benchmarks)
* New implementation of string mutations, which mutates in place rather than copying if there's
only one copy of the string buffer (a 20% speedup)
* New `FASTCALL` specializations, optimizing common cases for methods such as `table.insert`
(a 40% speedup)
* Improved `table.move` performance (often 3x faster!)
## Library changes
* Added the `debug.info` function which allows retrieving information about stack frames or functions; similarly to `debug.getinfo` from Lua, this accepts an options string that must consist of characters `slnfa`; unlike Lua that returns a table, the function returns all requested values one after another to improve performance.
## New logo
Luau now has a shiny new logo!
!["New logo!"]({{ site.url }}{{ site.baseurl }}/assets/images/luau.png)
## Coming soon...
* Better treatment of cyclic requires
* [Anything else?]