1//===- llvm/Support/CBindingWrapping.h - C Interface Wrapping ---*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file declares the wrapping macros for the C interface.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_SUPPORT_CBINDINGWRAPPING_H
14#define LLVM_SUPPORT_CBINDINGWRAPPING_H
15
16#include "llvm-c/Types.h"
17#include "llvm/Support/Casting.h"
18
19#define DEFINE_SIMPLE_CONVERSION_FUNCTIONS(ty, ref)     \
20  inline ty *unwrap(ref P) {                            \
21    return reinterpret_cast<ty*>(P);                    \
22  }                                                     \
23                                                        \
24  inline ref wrap(const ty *P) {                        \
25    return reinterpret_cast<ref>(const_cast<ty*>(P));   \
26  }
27
28#define DEFINE_ISA_CONVERSION_FUNCTIONS(ty, ref)        \
29  DEFINE_SIMPLE_CONVERSION_FUNCTIONS(ty, ref)           \
30                                                        \
31  template<typename T>                                  \
32  inline T *unwrap(ref P) {                             \
33    return cast<T>(unwrap(P));                          \
34  }
35
36#define DEFINE_STDCXX_CONVERSION_FUNCTIONS(ty, ref)     \
37  DEFINE_SIMPLE_CONVERSION_FUNCTIONS(ty, ref)           \
38                                                        \
39  template<typename T>                                  \
40  inline T *unwrap(ref P) {                             \
41    T *Q = (T*)unwrap(P);                               \
42    assert(Q && "Invalid cast!");                       \
43    return Q;                                           \
44  }
45
46#endif
47