luau/Ast/include/Luau
menarulalam a8d14596e7
Sync to upstream/release/669 (#1770)
We have lots of new changes for you! 

# What's Changed
## General

- We updated Luau's license year to 2025! 
- We fixed a bug where large amounts of errors were being printed when
deep intersections of unions error.


## Require-by-String
This release introduces the `Luau.Require` library, which exposes the
runtime semantics of require-by-string, including support for the new
`@self` alias described in [this
RFC](https://github.com/luau-lang/rfcs/pull/109).

The library operates on a virtualized filesystem, allowing consumers to
specify navigation rules without assuming a filesystem context.
Documentation in `Require.h` explains how to enable the library, and the
`setupState` function in Repl.cpp demonstrates how we've integrated it
into the luau CLI tool. Note that the interface in `Require.h` is
written in C, which enables any application written in a language with a
C foreign-function interface to link against this library and enable
require-by-string. This makes it straightforward for any application
embedding Luau to support require-by-string, provided that it defines or
operates within an environment resembling a virtual filesystem.

The core navigation semantics of require-by-string have additionally
been pulled into the `Luau.RequireNavigator` library. While
`Luau.Require` internally depends on `Luau.RequireNavigator`, the latter
does not depend on the Luau VM. This library provides an interface for
inspecting require-by-string's navigation behavior and therefore serves
as a useful dependency for static tooling. Documentation for
`Luau.RequireNavigator` is available in `RequireNavigator.h`.
## Autocomplete
- We fixed a memory leak in fragment autocomplete!
## New Solver And Old Solver
- We've found a infinite iteration error over a type pack. We added a
way to detect this error and throw an `InternalCompileError` instead.
- We fix `table.freeze` not accounting for the first argument not
getting type stated. We fall back to regular inference instead.
- We fix a crash in the old solver with `length_error`.
- We fix a crash in the new solver stemming from generalization
reentrancy. Now we correctly generalize interior free types that do not
appear in a function signature.
- We fix a nil refinement. (Fixes
https://github.com/luau-lang/luau/issues/1687 and
https://github.com/luau-lang/luau/issues/1451)



### Internal Contributors
Co-authored-by: Andy Friesen <afriesen@roblox.com>
Co-authored-by: Hunter Goldstein <hgoldstein@roblox.com>
Co-authored-by: Talha Pathan <tpathan@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>

Full Changelog: https://github.com/luau-lang/luau/compare/0.668...0.669

---------

Co-authored-by: Hunter Goldstein <hgoldstein@roblox.com>
Co-authored-by: Varun Saini <61795485+vrn-sn@users.noreply.github.com>
Co-authored-by: Alexander Youngblood <ayoungblood@roblox.com>
Co-authored-by: Aviral Goel <agoel@roblox.com>
Co-authored-by: Vighnesh <vvijay@roblox.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
Co-authored-by: Ariel Weiss <aaronweiss@roblox.com>
2025-04-11 17:44:21 -07:00
..
Allocator.h Sync to upstream/release/662 (#1681) 2025-02-21 10:24:12 -08:00
Ast.h Sync to upstream/release/667 (#1754) 2025-03-28 16:15:46 -07:00
Confusables.h Sync to upstream/release/501 (#20) 2021-11-01 14:52:34 -07:00
Cst.h Sync to upstream/release/669 (#1770) 2025-04-11 17:44:21 -07:00
Lexer.h Lexer: add offset getter (#1688) 2025-02-24 16:25:57 -08:00
Location.h Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
ParseOptions.h Sync to upstream/release/660 (#1643) 2025-02-07 16:17:11 -08:00
Parser.h Sync to upstream/release/667 (#1754) 2025-03-28 16:15:46 -07:00
ParseResult.h Sync to upstream/release/663 (#1699) 2025-02-28 14:42:30 -08:00
StringUtils.h Sync to upstream/release/549 (#707) 2022-10-14 12:48:41 -07:00
TimeTrace.h Sync to upstream/release/645 (#1440) 2024-09-27 11:58:21 -07:00