luau/fuzz
Hunter Goldstein 92cce5776c
Sync to upstream/release/674 (#1832)
# General

* Expose an optional `get_alias` API as an alternative to `get_config`
in Luau.Require and Luau.RequireNavigator.
* Improve the Luau CLI's virtual filesystem implementation to fix bugs
related to `init.luau`. Fixes
https://github.com/luau-lang/luau/issues/1816


# New Type Solver

* Avoid double reporting errors when erroneous arguments are provided to
type functions.
* Fix some instances of unresovable cyclic type functions in loops by
only considering the first loop cycles. This results in some type
inference inaccuracies when the type of a variable in loop through
multiple iterations. Fixes
https://github.com/luau-lang/luau/issues/1413.
* Better generalize free types that have meaningful lower and upper
bounds, especially for table indexers.
* Report more specific errors when assigning or returning table literal
types, instead of citing the *entire* table type.
* Inference for functions with generic type packs is greatly improved.
* Fix some internal compiler exceptions when using type-stating
functions like `table.freeze` in `if _ then _ else _` expressions and
short circuiting binary operations.
* More consistently simplify unions of primitive types, especially in
array-like and dictionary-like tables.
* Fix a crash when type checking an erroneous type alias containing
`typeof` with a type assertion expression, as in:
  ```
  type MyTable = {}
  -- This will error at type checking time as it's a duplicate
  type MyTable = typeof(setmetatable(SomeTable :: {}, SomeMetaTable));
  ```
* Fix a crash when inferring the type of an index expression where the
indexee is invalid (e.g. `nil`).

# Runtime
* Avoid throwing an exception from `luau_load` if we run out of memory.
* Type functions are no longer compiled and included in bytecode. Fixes
#1817.
* Fix some instances of Luau C API functions reading invalid debug
information (generally when the first or last instruction of a block was
being inspected). Fixes #1369.
* Avoid potential signed integer overflow when doing bounds checks on
tables.
* Support 16 byte aligned userdata objects when system allocation
alignment is also 16 bytes.
* Fix memory leaks in `Luau.Require` when using VM build with no
exceptions. Fixes #1827.

---------

Co-authored-by: Andy Friesen <afriesen@roblox.com>
Co-authored-by: Ariel Weiss <aaronweiss@roblox.com>
Co-authored-by: Hunter Goldstein <hgoldstein@roblox.com>
Co-authored-by: James McNellis <jmcnellis@roblox.com>
Co-authored-by: Sora Kanosue <skanosue@roblox.com>
Co-authored-by: Talha Pathan <tpathan@roblox.com>
Co-authored-by: Varun Saini <vsaini@roblox.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
2025-05-16 12:39:58 -07:00
..
basic.luau chore: update applicable .lua files to .luau (#1560) 2025-02-21 14:29:20 -08:00
CMakeLists.txt Sync to upstream/release/674 (#1832) 2025-05-16 12:39:58 -07:00
compiler.cpp Sync to upstream/release/501 (#20) 2021-11-01 14:52:34 -07:00
format.cpp Sync to upstream/release/570 (#885) 2023-03-31 11:42:49 -07:00
libprotobuf-mutator-patch.patch Sync to upstream/release/605 (#1118) 2023-12-01 23:46:57 -08:00
linter.cpp Sync to upstream/release/572 (#899) 2023-04-14 11:06:22 -07:00
luau.proto Sync to upstream/release/593 (#1024) 2023-09-01 10:58:27 -07:00
number.cpp Sync to upstream/release/517 (#408) 2022-03-04 08:36:33 -08:00
parser.cpp Sync to upstream/release/501 (#20) 2021-11-01 14:52:34 -07:00
proto.cpp Sync to upstream/release/671 (#1787) 2025-04-25 14:19:27 -07:00
protoprint.cpp Sync to upstream/release/671 (#1787) 2025-04-25 14:19:27 -07:00
prototest.cpp Sync to upstream/release/516 (#397) 2022-02-24 15:53:37 -08:00
syntax.dict Sync to upstream/release/501 (#20) 2021-11-01 14:52:34 -07:00
transpiler.cpp Sync to upstream/release/501 (#20) 2021-11-01 14:52:34 -07:00
typeck.cpp Sync to upstream/release/572 (#899) 2023-04-14 11:06:22 -07:00