1//===- DWARFAttribute.h -----------------------------------------*- 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#ifndef LLVM_DEBUGINFO_DWARFATTRIBUTE_H
11#define LLVM_DEBUGINFO_DWARFATTRIBUTE_H
12
13#include "llvm/BinaryFormat/Dwarf.h"
14#include "llvm/DebugInfo/DWARF/DWARFFormValue.h"
15#include <cstdint>
16
17namespace llvm {
18
19//===----------------------------------------------------------------------===//
20/// Encapsulates a DWARF attribute value and all of the data required to
21/// describe the attribute value.
22///
23/// This class is designed to be used by clients that want to iterate across all
24/// attributes in a DWARFDie.
25struct DWARFAttribute {
26  /// The debug info/types offset for this attribute.
27  uint32_t Offset = 0;
28  /// The debug info/types section byte size of the data for this attribute.
29  uint32_t ByteSize = 0;
30  /// The attribute enumeration of this attribute.
31  dwarf::Attribute Attr;
32  /// The form and value for this attribute.
33  DWARFFormValue Value;
34
35  DWARFAttribute(uint32_t O, dwarf::Attribute A = dwarf::Attribute(0),
36                 dwarf::Form F = dwarf::Form(0)) : Attr(A), Value(F) {}
37
38  bool isValid() const {
39    return Offset != 0 && Attr != dwarf::Attribute(0);
40  }
41
42  explicit operator bool() const {
43    return isValid();
44  }
45
46  void clear() {
47    Offset = 0;
48    ByteSize = 0;
49    Attr = dwarf::Attribute(0);
50    Value = DWARFFormValue();
51  }
52};
53
54} // end namespace llvm
55
56#endif // LLVM_DEBUGINFO_DWARFATTRIBUTE_H
57