## What's new
* Added `math.map` function to the standard library, based on
https://rfcs.luau-lang.org/function-math-map.html
* `FileResolver` can provide an implementation of
`getRequireSuggestions` to provide auto-complete suggestions for
require-by-string
## New Solver
* In user-defined type functions, `readproperty` and `writeproperty`
will return `nil` instead of erroring if property is not found
* Fixed incorrect scope of variadic arguments in the data-flow graph
* Fixed multiple assertion failures
---
Internal Contributors:
Co-authored-by: Aaron Weiss <aaronweiss@roblox.com>
Co-authored-by: Hunter Goldstein <hgoldstein@roblox.com>
Co-authored-by: Varun Saini <vsaini@roblox.com>
Co-authored-by: Vighnesh Vijay <vvijay@roblox.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
# General Updates
Fix an old solver crash that occurs in the presence of cyclic
`requires()`
## New Solver
- Improvements to Luau user-defined type function library
- Avoid asserting on unexpected metatable types
- Properties in user defined type functions should have a consistent
iteration order - in this case it is insertion ordering
# Runtime
- Track VM allocations for telemetry
---
Co-authored-by: Aaron Weiss <aaronweiss@roblox.com>
Co-authored-by: Andy Friesen <afriesen@roblox.com>
Co-authored-by: Hunter Goldstein <hgoldstein@roblox.com>
Co-authored-by: James McNellis <jmcnellis@roblox.com>
Co-authored-by: Varun Saini <vsaini@roblox.com>
Co-authored-by: Vighnesh Vijay <vvijay@roblox.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
---------
Co-authored-by: Aaron Weiss <aaronweiss@roblox.com>
Co-authored-by: Alexander McCord <amccord@roblox.com>
Co-authored-by: Andy Friesen <afriesen@roblox.com>
Co-authored-by: Aviral Goel <agoel@roblox.com>
Co-authored-by: David Cope <dcope@roblox.com>
Co-authored-by: Lily Brown <lbrown@roblox.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
Co-authored-by: Junseo Yoo <jyoo@roblox.com>
Noticed while using luau-ast that function attributes aren't included in
the output. This PR corrects that.
---------
Co-authored-by: vegorov-rbx <75688451+vegorov-rbx@users.noreply.github.com>
Closes#1460.
This renames the `type` field of `AstStatTypeAlias` to `value` during
the JSON encoding process.
I've chosen to just rename the field in the JSON encoder rather than
rename the actual field since it's a lot further reaching. Another
option would have been to rename what the actual type of an AST node is
written to be something like `tokenType` instead of `type`, but that's a
bigger diff and technically breaking (as opposed to this one which
isn't!)
# General Updates
* Fix some cases where documentation symbols would not be available when
mouseovering at certain positions in the code
* Scaffolding to help embedders have more control over how `typeof(x)`
refines types
* Refinements to require-by-string semantics. See
https://github.com/luau-lang/rfcs/pull/56 for details.
* Fix for https://github.com/luau-lang/luau/issues/1405
# New Solver
* Fix many crashes (thanks you for your bug reports!)
* Type functions can now call each other
* Type functions all evaluate in a single VM. This should improve
typechecking performance and reduce memory use.
* `export type function` is now forbidden and fails with a clear error
message
* Type functions that access locals in the surrounding environment are
now properly a parse error
* You can now use `:setindexer(types.never, types.never)` to delete an
indexer from a table type.
# Internal Contributors
Co-authored-by: Aaron Weiss <aaronweiss@roblox.com>
Co-authored-by: Hunter Goldstein <hgoldstein@roblox.com>
Co-authored-by: Varun Saini <vsaini@roblox.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
