Release 0.588 · luau-lang/luau

Analysis and Autocomplete Changes

Luau::autocomplete no longer performs typechecking internally, make sure to run Frontend::check before performing autocomplete requests
Autocomplete string suggestions without "" are now only suggested inside the ""
Autocomplete suggestions now include function (anonymous autofilled) key with a full suggestion for the function expression (with arguments included) stored in AutocompleteEntry::insertText
AutocompleteEntry::indexedWithSelf is provided for function call suggestions made with :
Cyclic modules now see each other type exports as any to prevent memory use-after-free (similar to module return type)

Updated inline/loop unroll cost model to better handle assignments (Fixes #978)
math.noise speed was improved by ~30%
table.concat speed was improved by ~5-7%
tonumber and tostring now have fastcall paths that execute ~1.5x and ~2.5x faster respectively (Fixes #777)
Fixed crash in luaL_typename when index refers to a non-existing value
Fixed potential out of memory scenario when using string.sub or string.char in a loop
Fixed behavior of some fastcall builtins when called without arguments under -O2 to match original functions
Support for native code execution in VM is now enabled by default (note: native code still has to be generated explicitly)
CodeGen::compile now accepts CodeGen_OnlyNativeModules flag. When set, only modules that have a --!native hot-comment at the top will be compiled to native code

Generic type packs are no longer considered to be variadic during unification
Timeout and cancellation now works in new solver
Fixed false positive errors around 'table' and 'function' type refinements
Table literals now use covariant unification rules. This is sound since literal has no type specified and has no aliases
Fixed issues with blocked types escaping the constraint solver
Fixed more places where error messages that should've been suppressed were still reported
Fixed errors when iterating over a top table type