luau/Analysis/include/Luau/Clone.h
2022-04-21 14:04:22 -07:00

29 lines
797 B
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/TypeVar.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
{
SeenTypes seenTypes;
SeenTypePacks seenTypePacks;
int recursionCount = 0;
bool encounteredFreeType = false; // TODO: Remove with LuauLosslessClone.
};
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