luau-lang/luau
1
0
Fork 0
mirror of https://github.com/luau-lang/luau.git synced 2025-04-04 10:50:54 +01:00
Code Issues Projects Releases Packages Wiki Activity

Removed features that are not enabled yet (bye, type-checking section)

Browse source
This commit is contained in:
Vyacheslav Egorov 2021-05-03 20:24:57 +03:00
parent 736e8a1d51
commit fc5d095c4c
1 changed files with 1 additions and 18 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
docs/_posts/2021-04-30-luau-recap-april-2021.md
View file

@ -3,7 +3,7 @@ layout: single
title: "Luau Recap: April 2021"
---
Luau is our new language that you can read more about at [https://roblox.github.io/luau](https://roblox.github.io/luau). Another busy month in Luau with many performance and typechecking improvements.
Luau is our new language that you can read more about at [https://roblox.github.io/luau](https://roblox.github.io/luau). Another busy month in Luau with many performance improvements.
[Cross-posted to the [Roblox Developer Forum](https://devforum.roblox.com/t/luau-recap-april-2021/).]
@ -13,21 +13,6 @@ Luau implementation now provides an API for type-aware autocomplete suggestions.
Roblox Studio will be the first user of this API and we plan for a new beta feature to come soon in addition to existing Luau-powered beta features like Go To Declaration, Type Hovers and Script Function Filter (you should check those out!)
## Typechecking improvements
We've made various improvements to the Luau typechecker:
* Fixed an issue with `table.insert` function signature
* Made improvements to cyclic module import detection and error reporting
* Added new linter pass that will report uses of deprecated Roblox APIs
* Fixed `assert` function declaration to accept a second optional string argument
* Fixed incorrect error on modification of table intersection type fields
* When using an 'or' between a nillable type and a value, the resulting type is now inferred to be non-nil
We have also made improvements to type output in error messages and made additional improvements to parser recovery from errors.
As usual, typechecking improvements will not break execution of your games even if new errors get reported.
## Performance improvements
Performance is a very important part of Luau implementation and we continue bringing in new performance optimizations:
@ -37,7 +22,6 @@ Performance is a very important part of Luau implementation and we continue brin
* Improved performance of `table.insert` and `table.remove`. Operations in the middle of large arrays can be multiple times faster with this change
* Improved performance of internal table resize which brings additional 30% speedup for `table.insert`
* Improved performance of checks for missing table fields
* Improved performance of table lookup with an index operator and a string: `t["name"]`
## Generic functions
@ -56,4 +40,3 @@ Read more about the feature [on Roblox Developer forums](https://devforum.roblox
Backwards compatibility is very important for Luau, but sometimes a change is required to improve the language or performance. Even still, we try to keep impact of these changes to a minimum:
* __eq tag method will always get called for table comparisons even when a table is compared to itself.
* assert function will return only the first argument as the result.