luau/Analysis/include/Luau/UnifierSharedState.h

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// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
#pragma once
#include "Luau/DenseHash.h"
#include "Luau/TypeVar.h"
#include "Luau/TypePack.h"
#include <utility>
namespace Luau
{
struct InternalErrorReporter;
struct TypeIdPairHash
{
size_t hashOne(Luau::TypeId key) const
{
return (uintptr_t(key) >> 4) ^ (uintptr_t(key) >> 9);
}
size_t operator()(const std::pair<Luau::TypeId, Luau::TypeId>& x) const
{
return hashOne(x.first) ^ (hashOne(x.second) << 1);
}
};
struct UnifierSharedState
{
UnifierSharedState(InternalErrorReporter* iceHandler)
: iceHandler(iceHandler)
{
}
InternalErrorReporter* iceHandler;
DenseHashSet<void*> seenAny{nullptr};
DenseHashMap<TypeId, bool> skipCacheForType{nullptr};
DenseHashSet<std::pair<TypeId, TypeId>, TypeIdPairHash> cachedUnify{{nullptr, nullptr}};
DenseHashSet<TypeId> tempSeenTy{nullptr};
DenseHashSet<TypePackId> tempSeenTp{nullptr};
};
} // namespace Luau