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6 Commits
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Hunter Goldstein
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a36a3c41cc
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Sync to upstream/release/651 (#1513)
### What's New? * Fragment Autocomplete: a new API allows for type checking a small fragment of code against an existing file, significantly speeding up autocomplete performance in large files. ### New Solver * E-Graphs have landed: this is an ongoing approach to make the new type solver simplify types in a more consistent and principled manner, based on similar work (see: https://egraphs-good.github.io/). * Adds support for exporting / local user type functions (previously they were always exported). * Fixes a set of bugs in which the new solver will fail to complete inference for simple expressions with just literals and operators. ### General Updates * Requiring a path with a ".lua" or ".luau" extension will now have a bespoke error suggesting to remove said extension. * Fixes a bug in which whether two `Luau::Symbol`s are equal depends on whether the new solver is enabled. --- Internal Contributors: Co-authored-by: Aaron Weiss <aaronweiss@roblox.com> Co-authored-by: Andy Friesen <afriesen@roblox.com> Co-authored-by: David Cope <dcope@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> |
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Andy Friesen
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a251bc68a2
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Sync to upstream/release/650 (#1502)
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* New `vector` library! See https://rfcs.luau.org/vector-library.html for details * Replace the use of non-portable `strnlen` with `memchr`. `strnlen` is not part of any C or C++ standard. * Introduce `lua_newuserdatataggedwithmetatable` for faster tagged userdata creation of userdata with metatables registered with `lua_setuserdatametatable` Old Solver * It used to be the case that a module's result type would unconditionally be inferred to be `any` if it imported any module that participates in any import cycle. This is now fixed. New Solver * Improve inference of `table.freeze`: We now infer read-only properties on tables after they have been frozen. * We now correctly flag cases where `string.format` is called with 0 arguments. * Fix a bug in user-defined type functions where table properties could be lost if the table had a metatable * Reset the random number seed for each evaluation of a type function * We now retry subtyping arguments if it failed due to hidden variadics. --------- Co-authored-by: Aaron Weiss <aaronweiss@roblox.com> Co-authored-by: Alexander McCord <amccord@roblox.com> Co-authored-by: Vighnesh <vvijay@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> |
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vegorov-rbx
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e491128f95
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Sync to upstream/release/648 (#1477)
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## 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> |
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Vighnesh-V
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77295c3610
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Sync to upstream/release/647 (#1469)
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# 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> |
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Andy Friesen
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543de6e939
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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 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> |
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aaron
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02241b6d24
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Sync to upstream/release/645 (#1440)
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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 <aaronweiss@roblox.com> Co-authored-by: Hunter Goldstein <hgoldstein@roblox.com> Co-authored-by: Jeremy Yoo <jyoo@roblox.com> Co-authored-by: Vighnesh Vijay <vvijay@roblox.com> Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com> --------- Co-authored-by: Alexander McCord <amccord@roblox.com> Co-authored-by: Andy Friesen <afriesen@roblox.com> Co-authored-by: Vighnesh <vvijay@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> |