mirror of
https://github.com/luau-lang/luau.git
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279855df91
- A series of major optimizations to type checking performance on complex programs/types (up to two orders of magnitude speedup for programs involving huge tagged unions) - Fix a few issues encountered by UBSAN (and maybe fix s390x builds) - Fix gcc-11 test builds - Fix a rare corner case where luau_load wouldn't wake inactive threads which could result in a use-after-free due to GC - Fix CLI crash when error object that's not a string escapes to top level - Fix Makefile suffixes on macOS Co-authored-by: Rodactor <rodactor@roblox.com>
97 lines
2.7 KiB
C++
97 lines
2.7 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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#include "Luau/TxnLog.h"
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#include "Luau/TypePack.h"
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#include <algorithm>
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LUAU_FASTFLAGVARIABLE(LuauShareTxnSeen, false)
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namespace Luau
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{
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void TxnLog::operator()(TypeId a)
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{
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typeVarChanges.emplace_back(a, *a);
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}
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void TxnLog::operator()(TypePackId a)
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{
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typePackChanges.emplace_back(a, *a);
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}
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void TxnLog::operator()(TableTypeVar* a)
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{
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tableChanges.emplace_back(a, a->boundTo);
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}
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void TxnLog::rollback()
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{
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for (auto it = typeVarChanges.rbegin(); it != typeVarChanges.rend(); ++it)
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std::swap(*asMutable(it->first), it->second);
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for (auto it = typePackChanges.rbegin(); it != typePackChanges.rend(); ++it)
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std::swap(*asMutable(it->first), it->second);
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for (auto it = tableChanges.rbegin(); it != tableChanges.rend(); ++it)
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std::swap(it->first->boundTo, it->second);
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if (FFlag::LuauShareTxnSeen)
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{
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LUAU_ASSERT(originalSeenSize <= sharedSeen->size());
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sharedSeen->resize(originalSeenSize);
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}
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}
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void TxnLog::concat(TxnLog rhs)
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{
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typeVarChanges.insert(typeVarChanges.end(), rhs.typeVarChanges.begin(), rhs.typeVarChanges.end());
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rhs.typeVarChanges.clear();
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typePackChanges.insert(typePackChanges.end(), rhs.typePackChanges.begin(), rhs.typePackChanges.end());
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rhs.typePackChanges.clear();
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tableChanges.insert(tableChanges.end(), rhs.tableChanges.begin(), rhs.tableChanges.end());
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rhs.tableChanges.clear();
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if (!FFlag::LuauShareTxnSeen)
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{
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ownedSeen.swap(rhs.ownedSeen);
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rhs.ownedSeen.clear();
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}
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}
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bool TxnLog::haveSeen(TypeId lhs, TypeId rhs)
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{
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const std::pair<TypeId, TypeId> sortedPair = (lhs > rhs) ? std::make_pair(lhs, rhs) : std::make_pair(rhs, lhs);
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if (FFlag::LuauShareTxnSeen)
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return (sharedSeen->end() != std::find(sharedSeen->begin(), sharedSeen->end(), sortedPair));
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else
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return (ownedSeen.end() != std::find(ownedSeen.begin(), ownedSeen.end(), sortedPair));
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}
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void TxnLog::pushSeen(TypeId lhs, TypeId rhs)
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{
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const std::pair<TypeId, TypeId> sortedPair = (lhs > rhs) ? std::make_pair(lhs, rhs) : std::make_pair(rhs, lhs);
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if (FFlag::LuauShareTxnSeen)
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sharedSeen->push_back(sortedPair);
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else
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ownedSeen.push_back(sortedPair);
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}
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void TxnLog::popSeen(TypeId lhs, TypeId rhs)
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{
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const std::pair<TypeId, TypeId> sortedPair = (lhs > rhs) ? std::make_pair(lhs, rhs) : std::make_pair(rhs, lhs);
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if (FFlag::LuauShareTxnSeen)
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{
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LUAU_ASSERT(sortedPair == sharedSeen->back());
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sharedSeen->pop_back();
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}
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else
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{
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LUAU_ASSERT(sortedPair == ownedSeen.back());
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ownedSeen.pop_back();
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}
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}
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} // namespace Luau
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