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e190754565
# What's Changed?
This week includes many changes to bring the behaviours of the Old and
New Luau Type Solver more in line.
* The old solver now stringifies tables identically to the new solver.
Sealed tables are stringified as `{ ... }` and unsealed tables are
represented by `{| ... |}`, regardless of your choice of solver.
## New Type Solver
* Miscellaneous fixes to make the Luau Frontend able to dynamically
toggle which solve is used.
* Small fixes to reduce instances of nondeterminism of the New Type
Solver.
* Issue an error when a function that has multiple non-viable overloads
is used.
* Subtyping now returns more information about the generics for type
inference to consume.
* Stop stuck type-functions from blocking type inference. This should
lead to fewer instances of 'type inference failed to complete'.
## Fragment Autocomplete
* Fixed a bug where incremental autocomplete wouldn't be able to provide
results directly on a required module script.
`require(script.Module).{request completions here}` will now recommend
the properties returned by the required object.
---
Co-authored-by: Andy Friesen <afriesen@roblox.com>
Co-authored-by: Hunter Goldstein <hgoldstein@roblox.com>
Co-authored-by: Sora Kanosue <skanosue@roblox.com>
Co-authored-by: Talha Pathan <tpathan@roblox.com>
Co-authored-by: Vighnesh Vijay <vvijay@roblox.com>
49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
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#pragma once
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#include "Luau/TypeFwd.h"
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#include "Luau/NotNull.h"
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#include <memory>
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#include <optional>
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#include <vector>
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namespace Luau
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{
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struct TypeArena;
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}
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// The EqSat stuff is pretty template heavy, so we go to some lengths to prevent
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// the complexity from leaking outside its implementation sources.
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namespace Luau::EqSatSimplification
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{
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struct Simplifier;
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using SimplifierPtr = std::unique_ptr<Simplifier, void (*)(Simplifier*)>;
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SimplifierPtr newSimplifier(NotNull<TypeArena> arena, NotNull<BuiltinTypes> builtinTypes);
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} // namespace Luau::EqSatSimplification
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namespace Luau
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{
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struct EqSatSimplificationResult
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{
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TypeId result;
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// New type function applications that were created by the reduction phase.
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// We return these so that the ConstraintSolver can know to try to reduce
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// them.
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std::vector<TypeId> newTypeFunctions;
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};
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using EqSatSimplification::newSimplifier; // NOLINT: clang-tidy thinks these are unused. It is incorrect.
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using Luau::EqSatSimplification::Simplifier; // NOLINT
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using Luau::EqSatSimplification::SimplifierPtr;
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std::optional<EqSatSimplificationResult> eqSatSimplify(NotNull<Simplifier> simplifier, TypeId ty);
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} // namespace Luau
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