56 lines
1.3 KiB
C++
56 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/DenseHash.h"
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#include "Luau/Error.h"
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#include "Luau/Type.h"
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#include "Luau/TypePack.h"
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#include <utility>
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namespace Luau
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{
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struct InternalErrorReporter;
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struct TypeIdPairHash
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{
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size_t hashOne(Luau::TypeId key) const
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{
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return (uintptr_t(key) >> 4) ^ (uintptr_t(key) >> 9);
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}
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size_t operator()(const std::pair<Luau::TypeId, Luau::TypeId>& x) const
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{
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return hashOne(x.first) ^ (hashOne(x.second) << 1);
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}
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};
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struct UnifierCounters
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{
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int recursionCount = 0;
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int recursionLimit = 0;
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int iterationCount = 0;
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int iterationLimit = 0;
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};
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struct UnifierSharedState
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{
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UnifierSharedState(InternalErrorReporter* iceHandler)
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: iceHandler(iceHandler)
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{
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}
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InternalErrorReporter* iceHandler;
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DenseHashMap<TypeId, bool> skipCacheForType{nullptr};
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DenseHashSet<std::pair<TypeId, TypeId>, TypeIdPairHash> cachedUnify{{nullptr, nullptr}};
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DenseHashMap<std::pair<TypeId, TypeId>, TypeErrorData, TypeIdPairHash> cachedUnifyError{{nullptr, nullptr}};
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DenseHashSet<TypeId> tempSeenTy{nullptr};
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DenseHashSet<TypePackId> tempSeenTp{nullptr};
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UnifierCounters counters;
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};
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} // namespace Luau
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