TapiUniversal.h revision 360784 
1//===-- TapiUniversal.h - Text-based Dynamic Library Stub -------*- 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 TapiUniversal interface.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_OBJECT_TAPI_UNIVERSAL_H
14#define LLVM_OBJECT_TAPI_UNIVERSAL_H
15
16#include "llvm/Object/Binary.h"
17#include "llvm/Object/TapiFile.h"
18#include "llvm/Support/Error.h"
19#include "llvm/Support/MemoryBuffer.h"
20#include "llvm/TextAPI/MachO/Architecture.h"
21#include "llvm/TextAPI/MachO/InterfaceFile.h"
22
23namespace llvm {
24namespace object {
25
26class TapiUniversal : public Binary {
27public:
28  class ObjectForArch {
29    const TapiUniversal *Parent;
30    int Index;
31
32  public:
33    ObjectForArch(const TapiUniversal *Parent, int Index)
34        : Parent(Parent), Index(Index) {}
35
36    ObjectForArch getNext() const { return ObjectForArch(Parent, Index + 1); }
37
38    bool operator==(const ObjectForArch &Other) const {
39      return (Parent == Other.Parent) && (Index == Other.Index);
40    }
41
42    uint32_t getCPUType() const {
43      auto Result =
44          MachO::getCPUTypeFromArchitecture(Parent->Architectures[Index]);
45      return Result.first;
46    }
47
48    uint32_t getCPUSubType() const {
49      auto Result =
50          MachO::getCPUTypeFromArchitecture(Parent->Architectures[Index]);
51      return Result.second;
52    }
53
54    std::string getArchFlagName() const {
55      return MachO::getArchitectureName(Parent->Architectures[Index]);
56    }
57
58    Expected<std::unique_ptr<TapiFile>> getAsObjectFile() const;
59  };
60
61  class object_iterator {
62    ObjectForArch Obj;
63
64  public:
65    object_iterator(const ObjectForArch &Obj) : Obj(Obj) {}
66    const ObjectForArch *operator->() const { return &Obj; }
67    const ObjectForArch &operator*() const { return Obj; }
68
69    bool operator==(const object_iterator &Other) const {
70      return Obj == Other.Obj;
71    }
72    bool operator!=(const object_iterator &Other) const {
73      return !(*this == Other);
74    }
75
76    object_iterator &operator++() { // Preincrement
77      Obj = Obj.getNext();
78      return *this;
79    }
80  };
81
82  TapiUniversal(MemoryBufferRef Source, Error &Err);
83  static Expected<std::unique_ptr<TapiUniversal>>
84  create(MemoryBufferRef Source);
85  ~TapiUniversal() override;
86
87  object_iterator begin_objects() const { return ObjectForArch(this, 0); }
88  object_iterator end_objects() const {
89    return ObjectForArch(this, Architectures.size());
90  }
91
92  iterator_range<object_iterator> objects() const {
93    return make_range(begin_objects(), end_objects());
94  }
95
96  uint32_t getNumberOfObjects() const { return Architectures.size(); }
97
98  // Cast methods.
99  static bool classof(const Binary *v) { return v->isTapiUniversal(); }
100
101private:
102  std::unique_ptr<MachO::InterfaceFile> ParsedFile;
103  std::vector<MachO::Architecture> Architectures;
104};
105
106} // end namespace object.
107} // end namespace llvm.
108
109#endif // LLVM_OBJECT_TAPI_UNIVERSAL_H
110