42 lines
835 B
C++
42 lines
835 B
C++
#pragma once
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#include <optional>
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#include <utility>
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namespace sead
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{
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template <typename Function>
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class ScopeGuard final
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{
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public:
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ScopeGuard(Function&& function) : mFunction(std::move(function)) {}
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ScopeGuard(ScopeGuard&& other) noexcept
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{
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mFunction = std::move(other.mFunction);
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other.dismiss();
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}
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~ScopeGuard() { exit(); }
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void dismiss() { mFunction.reset(); }
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void exit()
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{
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if (!mFunction)
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return;
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(*mFunction)();
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dismiss();
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}
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private:
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std::optional<Function> mFunction;
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};
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/// To work around the lack of CTAD in compilers with incomplete C++17 support.
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template <typename Function>
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ScopeGuard<Function> makeScopeGuard(Function&& function)
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{
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return ScopeGuard<Function>(std::forward<Function>(function));
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}
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} // namespace sead
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