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text_editor/src/build_tool/standalone_libraries/defer.hpp
Krzosa Karol a75c8a2e4f Init repo
2024-06-19 06:51:06 +02:00

25 lines
680 B
C++

#ifndef FIRST_DEFER_HEADER
#define FIRST_DEFER_HEADER
template <typename T>
struct DEFER_ExitScope {
T lambda;
DEFER_ExitScope(T lambda) : lambda(lambda) {}
~DEFER_ExitScope() { lambda(); }
DEFER_ExitScope(const DEFER_ExitScope &i) : lambda(i.lambda){};
private:
DEFER_ExitScope &operator=(const DEFER_ExitScope &);
};
class DEFER_ExitScopeHelp {
public:
template <typename T>
DEFER_ExitScope<T> operator+(T t) { return t; }
};
#define DEFER_CONCAT_INTERNAL(x, y) x##y
#define DEFER_CONCAT(x, y) DEFER_CONCAT_INTERNAL(x, y)
#define defer const auto DEFER_CONCAT(defer__, __LINE__) = DEFER_ExitScopeHelp() + [&]()
#endif