1 //===- llvm/Support/CBindingWrapph.h - C Interface Wrapping -----*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file declares the wrapping macros for the C interface. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_SUPPORT_CBINDINGWRAPPING_H 15 #define LLVM_SUPPORT_CBINDINGWRAPPING_H 16 17 #include "llvm/Support/Casting.h" 18 #include "llvm-c/Types.h" 19 20 #define DEFINE_SIMPLE_CONVERSION_FUNCTIONS(ty, ref) \ 21 inline ty *unwrap(ref P) { \ 22 return reinterpret_cast<ty*>(P); \ 23 } \ 24 \ 25 inline ref wrap(const ty *P) { \ 26 return reinterpret_cast<ref>(const_cast<ty*>(P)); \ 27 } 28 29 #define DEFINE_ISA_CONVERSION_FUNCTIONS(ty, ref) \ 30 DEFINE_SIMPLE_CONVERSION_FUNCTIONS(ty, ref) \ 31 \ 32 template<typename T> \ 33 inline T *unwrap(ref P) { \ 34 return cast<T>(unwrap(P)); \ 35 } 36 37 #define DEFINE_STDCXX_CONVERSION_FUNCTIONS(ty, ref) \ 38 DEFINE_SIMPLE_CONVERSION_FUNCTIONS(ty, ref) \ 39 \ 40 template<typename T> \ 41 inline T *unwrap(ref P) { \ 42 T *Q = (T*)unwrap(P); \ 43 assert(Q && "Invalid cast!"); \ 44 return Q; \ 45 } 46 47 #endif 48