luau/Analysis/include/Luau/Clone.h
vegorov-rbx 9c2146288d
Sync to upstream/release/621 (#1229)
# What's changed?

* Support for new 'require by string' RFC with relative paths and
aliases in now enabled in Luau REPL application

### New Type Solver

* Fixed assertion failure on generic table keys (`[expr] = value`)
* Fixed an issue with type substitution traversing into the substituted
parts during type instantiation
* Fixed crash in union simplification when that union contained
uninhabited unions and other types inside
* Union types in binary type families like `add<a | b, c>` are expanded
into `add<a, c> | add<b, c>` to handle
* Added handling for type family solving creating new type families
* Fixed a bug with normalization operation caching types with unsolved
parts
* Tables with uninhabited properties are now simplified to `never`
* Fixed failures found by fuzzer

### Native Code Generation

* Added support for shared code generation between multiple Luau VM
instances
* Fixed issue in load-store propagation and new tagged LOAD_TVALUE
instructions
* Fixed issues with partial register dead store elimination causing
failures in GC assists

---

### Internal Contributors

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: James McNellis <jmcnellis@roblox.com>
Co-authored-by: Vighnesh Vijay <vvijay@roblox.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
2024-04-12 10:18:49 -07:00

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C++

// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
#pragma once
#include <Luau/NotNull.h>
#include "Luau/TypeArena.h"
#include "Luau/Type.h"
#include <unordered_map>
namespace Luau
{
// Only exposed so they can be unit tested.
using SeenTypes = std::unordered_map<TypeId, TypeId>;
using SeenTypePacks = std::unordered_map<TypePackId, TypePackId>;
struct CloneState
{
NotNull<BuiltinTypes> builtinTypes;
SeenTypes seenTypes;
SeenTypePacks seenTypePacks;
};
TypePackId clone(TypePackId tp, TypeArena& dest, CloneState& cloneState);
TypeId clone(TypeId tp, TypeArena& dest, CloneState& cloneState);
TypeFun clone(const TypeFun& typeFun, TypeArena& dest, CloneState& cloneState);
} // namespace Luau