1 //===- Archive.h - ar archive file format -----------------------*- 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 ar archive file format class.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_OBJECT_ARCHIVE_H
15 #define LLVM_OBJECT_ARCHIVE_H
16 
17 #include "llvm/Object/Binary.h"
18 #include "llvm/ADT/StringRef.h"
19 #include "llvm/Support/DataTypes.h"
20 
21 namespace llvm {
22 namespace object {
23 
24 class Archive : public Binary {
25 public:
26   class Child {
27     const Archive *Parent;
28     StringRef Data;
29 
30   public:
Child(const Archive * p,StringRef d)31     Child(const Archive *p, StringRef d) : Parent(p), Data(d) {}
32 
33     bool operator ==(const Child &other) const {
34       return (Parent == other.Parent) && (Data.begin() == other.Data.begin());
35     }
36 
37     Child getNext() const;
38     error_code getName(StringRef &Result) const;
39     int getLastModified() const;
40     int getUID() const;
41     int getGID() const;
42     int getAccessMode() const;
43     ///! Return the size of the archive member without the header or padding.
44     uint64_t getSize() const;
45 
46     MemoryBuffer *getBuffer() const;
47     error_code getAsBinary(OwningPtr<Binary> &Result) const;
48   };
49 
50   class child_iterator {
51     Child child;
52   public:
child_iterator(const Child & c)53     child_iterator(const Child &c) : child(c) {}
54     const Child* operator->() const {
55       return &child;
56     }
57 
58     bool operator==(const child_iterator &other) const {
59       return child == other.child;
60     }
61 
62     bool operator!=(const child_iterator &other) const {
63       return !(*this == other);
64     }
65 
66     child_iterator& operator++() {  // Preincrement
67       child = child.getNext();
68       return *this;
69     }
70   };
71 
72   Archive(MemoryBuffer *source, error_code &ec);
73 
74   child_iterator begin_children() const;
75   child_iterator end_children() const;
76 
77   // Cast methods.
classof(Archive const * v)78   static inline bool classof(Archive const *v) { return true; }
classof(Binary const * v)79   static inline bool classof(Binary const *v) {
80     return v->getType() == Binary::isArchive;
81   }
82 
83 private:
84   child_iterator StringTable;
85 };
86 
87 }
88 }
89 
90 #endif
91