Tags: luau-lang/luau
Tags
Sync to upstream/release/647 (#1469) # 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 <[email protected]> Co-authored-by: Andy Friesen <[email protected]> Co-authored-by: Hunter Goldstein <[email protected]> Co-authored-by: James McNellis <[email protected]> Co-authored-by: Varun Saini <[email protected]> Co-authored-by: Vighnesh Vijay <[email protected]> Co-authored-by: Vyacheslav Egorov <[email protected]> --------- Co-authored-by: Aaron Weiss <[email protected]> Co-authored-by: Alexander McCord <[email protected]> Co-authored-by: Andy Friesen <[email protected]> Co-authored-by: Aviral Goel <[email protected]> Co-authored-by: David Cope <[email protected]> Co-authored-by: Lily Brown <[email protected]> Co-authored-by: Vyacheslav Egorov <[email protected]> Co-authored-by: Junseo Yoo <[email protected]>
Sync to upstream/release/646 (#1458) # 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 luau-lang/rfcs#56 for details. * Fix for #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 <[email protected]> Co-authored-by: Hunter Goldstein <[email protected]> Co-authored-by: Varun Saini <[email protected]> Co-authored-by: Vyacheslav Egorov <[email protected]>
Sync to upstream/release/645 (#1440) In this update, we continue to improve the overall stability of the new type solver. We're also shipping some early bits of two new features, one of the language and one of the analysis API: user-defined type functions and an incremental typechecking API. If you use the new solver and want to use all new fixes included in this release, you have to reference an additional Luau flag: ```c++ LUAU_DYNAMIC_FASTINT(LuauTypeSolverRelease) ``` And set its value to `645`: ```c++ DFInt::LuauTypeSolverRelease.value = 645; // Or a higher value for future updates ``` ## New Solver * Fix a crash where scopes are incorrectly accessed cross-module after they've been deallocated by appropriately zeroing out associated scope pointers for free types, generic types, table types, etc. * Fix a crash where we were incorrectly caching results for bound types in generalization. * Eliminated some unnecessary intermediate allocations in the constraint solver and type function infrastructure. * Built some initial groundwork for an incremental typecheck API for use by language servers. * Built an initial technical preview for [user-defined type functions](https://rfcs.luau-lang.org/user-defined-type-functions.html), more work still to come (including calling type functions from other type functions), but adventurous folks wanting to experiment with it can try it out by enabling `FFlag::LuauUserDefinedTypeFunctionsSyntax` and `FFlag::LuauUserDefinedTypeFunction` in their local environment. Special thanks to @joonyoo181 who built up all the initial infrastructure for this during his internship! ## Miscellaneous changes * Fix a compilation error on Ubuntu (fixes #1437) --- Internal Contributors: Co-authored-by: Aaron Weiss <[email protected]> Co-authored-by: Hunter Goldstein <[email protected]> Co-authored-by: Jeremy Yoo <[email protected]> Co-authored-by: Vighnesh Vijay <[email protected]> Co-authored-by: Vyacheslav Egorov <[email protected]> --------- Co-authored-by: Alexander McCord <[email protected]> Co-authored-by: Andy Friesen <[email protected]> Co-authored-by: Vighnesh <[email protected]> Co-authored-by: Aviral Goel <[email protected]> Co-authored-by: David Cope <[email protected]> Co-authored-by: Lily Brown <[email protected]> Co-authored-by: Vyacheslav Egorov <[email protected]> Co-authored-by: Junseo Yoo <[email protected]>
Sync to upstream/release/644 (#1432) In this update we improve overall stability of the new type solver and address some type inference issues with it. If you use the new solver and want to use all new fixes included in this release, you have to reference an additional Luau flag: ```c++ LUAU_DYNAMIC_FASTINT(LuauTypeSolverRelease) ``` And set its value to `644`: ```c++ DFInt::LuauTypeSolverRelease.value = 644; // Or a higher value for future updates ``` ## New Solver * Fixed a debug assertion failure in autocomplete (Fixes #1391) * Fixed type function distribution issue which transformed `len<>` and `unm<>` into `not<>` (Fixes #1416) * Placed a limit on the possible normalized table intersection size as a temporary measure to avoid hangs and out-of-memory issues for complex type refinements * Internal recursion limits are now respected in the subtyping operations and in autocomplete, to avoid stack overflow crashes * Fixed false positive errors on assignments to tables whose indexers are unions of strings * Fixed memory corruption crashes in subtyping of generic types containing other generic types in their bounds --- Internal Contributors: Co-authored-by: Aaron Weiss <[email protected]> Co-authored-by: Andy Friesen <[email protected]> Co-authored-by: Vyacheslav Egorov <[email protected]>
Sync to upstream/release/643 (#1408) Pretty small release this week as well. ## New Solver * We now unconditionally generalize functions with explicit generics * Bugfixes for how we run builtin tests ## VM * Fixed running Luau conformance tests in LUA_VECTOR_SIZE == 4 configuration Internal Contributors: Co-authored-by: Hunter Goldstein <[email protected]> Co-authored-by: James McNellis <[email protected]> Co-authored-by: Vighnesh Vijay <[email protected]> Co-authored-by: Vyacheslav Egorov <[email protected]> --------- Co-authored-by: Aaron Weiss <[email protected]> Co-authored-by: Alexander McCord <[email protected]> Co-authored-by: Andy Friesen <[email protected]> Co-authored-by: Aviral Goel <[email protected]> Co-authored-by: David Cope <[email protected]> Co-authored-by: Lily Brown <[email protected]> Co-authored-by: Vyacheslav Egorov <[email protected]> Co-authored-by: Junseo Yoo <[email protected]>
Sync to upstream/release/641 (#1382) ### What's new * Light update this week, mostly fast flag cleanups. ### New Solver * Rename flag to enable new solver from `DebugLuauDeferredConstraintResolution` to `LuauSolverV2` * Added support for magic functions for the new type checker (as opposed to the type inference component) * Improved handling of `string.format` with magic function improvements * Cleaning up some of the reported errors by the new type checker * Minor refactoring of `TypeChecker2.cpp` that happens to make the diff very hard to read. --- ### Internal Contributors Co-authored-by: Aaron Weiss <[email protected]> Co-authored-by: Andy Friesen <[email protected]> Co-authored-by: Vighnesh Vijay <[email protected]> Co-authored-by: Vyacheslav Egorov <[email protected]> --------- Co-authored-by: Alexander McCord <[email protected]> Co-authored-by: Andy Friesen <[email protected]> Co-authored-by: Vighnesh <[email protected]> Co-authored-by: Aviral Goel <[email protected]> Co-authored-by: David Cope <[email protected]> Co-authored-by: Lily Brown <[email protected]> Co-authored-by: Vyacheslav Egorov <[email protected]> Co-authored-by: Junseo Yoo <[email protected]>
Sync to upstream/release/640 (#1374) ### What's new * Fixed many of the false positive errors in indexing of table unions and table intersections * It is now possible to run custom checks over Luau AST during typechecking by setting `customModuleCheck` in `FrontendOptions` * Fixed codegen issue on arm, where number->vector cast could corrupt that number value for the next time it's read ### New Solver * `error` type now behaves as the bottom type during subtyping checks * Fixed the scope that is used in subtyping with generic types * Fixed `astOriginalCallTypes` table often used by LSP to match the old solver --- ### Internal Contributors Co-authored-by: Aaron Weiss <[email protected]> Co-authored-by: Andy Friesen <[email protected]> Co-authored-by: Vighnesh Vijay <[email protected]> Co-authored-by: Vyacheslav Egorov <[email protected]>
Sync to upstream/release/639 (#1368) # What's Changed? - Variety of bugfixes in the new solver ## New Solver - Fix an issue where we would hit a recursion limit when applying long chains of type refinements. - Weaken the types of `table.freeze` and `table.clone` in the new solver so we can accept common code patterns like `local a = table.freeze({x=5, x=0})` at the expense of accepting code like `table.freeze(true)`. - Don't warn when the # operator is used on a value of type never ## VM - Fix a bug in lua_resume where too many values might be removed from stack when resume throws an error --- Co-authored-by: Aaron Weiss <[email protected]> Co-authored-by: Andy Friesen <[email protected]> Co-authored-by: Vighnesh Vijay <[email protected]> Co-authored-by: Vyacheslav Egorov <[email protected]> --------- Co-authored-by: Aaron Weiss <[email protected]> Co-authored-by: Alexander McCord <[email protected]> Co-authored-by: Andy Friesen <[email protected]> Co-authored-by: Aviral Goel <[email protected]> Co-authored-by: David Cope <[email protected]> Co-authored-by: Lily Brown <[email protected]> Co-authored-by: Vyacheslav Egorov <[email protected]> Co-authored-by: Junseo Yoo <[email protected]>
Sync to upstream/release/637 (#1354) # What's Changed? - Code refactoring with a new clang-format - More bug fixes / test case fixes in the new solver ## New Solver - More precise telemetry collection of `any` types - Simplification of two completely disjoint tables combines them into a single table that inherits all properties / indexers - Refining a `never & <anything>` does not produce type family types nor constraints - Silence "inference failed to complete" error when it is the only error reported --- ### Internal Contributors Co-authored-by: Aaron Weiss <[email protected]> Co-authored-by: Andy Friesen <[email protected]> Co-authored-by: Dibri Nsofor <[email protected]> Co-authored-by: Jeremy Yoo <[email protected]> Co-authored-by: Vighnesh Vijay <[email protected]> Co-authored-by: Vyacheslav Egorov <[email protected]> --------- Co-authored-by: Aaron Weiss <[email protected]> Co-authored-by: Alexander McCord <[email protected]> Co-authored-by: Andy Friesen <[email protected]> Co-authored-by: Vighnesh <[email protected]> Co-authored-by: Aviral Goel <[email protected]> Co-authored-by: David Cope <[email protected]> Co-authored-by: Lily Brown <[email protected]> Co-authored-by: Vyacheslav Egorov <[email protected]>
PreviousNext