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Co-authored-by: Arseny Kapoulkine <arseny.kapoulkine@gmail.com>
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vegorov-rbx 2021-06-01 18:47:18 +03:00 • committed by GitHub
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docs/_posts/2021-05-31-luau-recap-may-2021.md
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@ -44,7 +44,7 @@ Speaking of typechecking, we've implemented many improvements this month:
We've also added new checks to our linter: We've also added new checks to our linter:
* A new check will report uses of deprecated Roblox APIs * A new check will report uses of deprecated Roblox APIs
* We will warn for global functions that are defined inside local functions * Linter will now suggest replacing globals with locals in more cases
* New warning is generated if array loop starts or ends on index '0', but the array is indexed from '1' * New warning is generated if array loop starts or ends on index '0', but the array is indexed from '1'
* FormatString lint will now check string patterns for `find`/`match` calls via `:` when object type is known to be a string * FormatString lint will now check string patterns for `find`/`match` calls via `:` when object type is known to be a string
@ -60,9 +60,9 @@ As part of this work we will improve the type information provided by Roblox API
## Behavior changes ## Behavior changes
We've made an improvement for an error message, when a relational comparison fails at runtime, we now specify the comparison direction in the error message (e.g. `attempt to compare nil <= number`) When a relational comparison fails at runtime, the error message now specifies the comparison direction (e.g. `attempt to compare nil <= number`)
## Performance improvements ## Performance improvements
* Improved performance of table lookup with an index operator and a string: `t["name"]` * Improved performance of table lookup with an index operator and a literal string: `t["name"]`
* Bytecode compilation is now ~5% faster which can improve server startup time for games with lots of scripts * Bytecode compilation is now ~5% faster which can improve server startup time for games with lots of scripts