76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
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#pragma once
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struct Il2CppException;
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namespace il2cpp
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{
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namespace utils
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{
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NORETURN void RethrowException(Il2CppException* exception);
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template<typename FinallyBlock, bool isFault>
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struct FinallyHelper
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{
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public:
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inline FinallyHelper(FinallyBlock&& finallyBlock) :
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m_Exception(nullptr),
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// static cast to rvalue reference simulates std::move, as we don't want to include <utility> for all generated code
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m_FinallyBlock(static_cast<FinallyBlock &&>(finallyBlock))
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{
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}
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FinallyHelper(const FinallyHelper<FinallyBlock, isFault>&) = delete;
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FinallyHelper& operator=(const FinallyHelper<FinallyBlock, isFault>&) = delete;
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inline FinallyHelper(FinallyHelper<FinallyBlock, isFault>&& other) :
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m_FinallyBlock(static_cast<FinallyBlock &&>(other.m_FinallyBlock))
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{
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}
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inline FinallyHelper& operator=(FinallyHelper<FinallyBlock, isFault>&& other)
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{
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m_FinallyBlock = static_cast<FinallyBlock &&>(other.m_FinallyBlock);
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return *this;
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}
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inline ~FinallyHelper() noexcept(false)
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{
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if (isFault)
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{
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if (m_Exception != nullptr)
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{
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m_FinallyBlock();
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RethrowException(m_Exception);
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}
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}
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else
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{
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m_FinallyBlock();
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if (m_Exception != nullptr)
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RethrowException(m_Exception);
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}
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}
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inline void StoreException(Il2CppException* exception)
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{
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m_Exception = exception;
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}
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private:
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Il2CppException* m_Exception;
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FinallyBlock m_FinallyBlock;
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};
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template<typename FinallyBlock>
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inline FinallyHelper<FinallyBlock, false> Finally(FinallyBlock&& finallyBlock)
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{
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return FinallyHelper<FinallyBlock, false>(static_cast<FinallyBlock &&>(finallyBlock));
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}
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template<typename FinallyBlock>
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inline FinallyHelper<FinallyBlock, true> Fault(FinallyBlock&& finallyBlock)
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{
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return FinallyHelper<FinallyBlock, true>(static_cast<FinallyBlock &&>(finallyBlock));
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}
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}
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}
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