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21
22#pragma once
23
24#include <memory>
25
26// clang 3.6 uses unique_ptr in many places that was not using it before
27template<typename T> struct MaybeUnique {
28 T *val;
29 operator T*() { return val; }
30 template <typename X> operator std::unique_ptr<X> () && { return std::unique_ptr<X>(val); }
31};
32template<typename T> MaybeUnique<T> maybe_unique(T* val) { return {val}; }
33
34#ifndef LLVM_FALLTHROUGH
35#define LLVM_FALLTHROUGH
36#endif
37
38