1//===-- DWARFAbbreviationDeclaration.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_DWARFABBREVIATIONDECLARATION_H
11#define LLVM_DEBUGINFO_DWARFABBREVIATIONDECLARATION_H
12
13#include "DWARFAttribute.h"
14#include "llvm/ADT/SmallVector.h"
15#include "llvm/Support/DataExtractor.h"
16
17namespace llvm {
18
19class raw_ostream;
20
21class DWARFAbbreviationDeclaration {
22  uint32_t Code;
23  uint32_t Tag;
24  bool HasChildren;
25  SmallVector<DWARFAttribute, 8> Attributes;
26public:
27  enum { InvalidCode = 0 };
28  DWARFAbbreviationDeclaration()
29    : Code(InvalidCode), Tag(0), HasChildren(0) {}
30
31  uint32_t getCode() const { return Code; }
32  uint32_t getTag() const { return Tag; }
33  bool hasChildren() const { return HasChildren; }
34  uint32_t getNumAttributes() const { return Attributes.size(); }
35  uint16_t getAttrByIndex(uint32_t idx) const {
36    return Attributes.size() > idx ? Attributes[idx].getAttribute() : 0;
37  }
38  uint16_t getFormByIndex(uint32_t idx) const {
39    return Attributes.size() > idx ? Attributes[idx].getForm() : 0;
40  }
41
42  uint32_t findAttributeIndex(uint16_t attr) const;
43  bool extract(DataExtractor data, uint32_t* offset_ptr);
44  bool extract(DataExtractor data, uint32_t* offset_ptr, uint32_t code);
45  bool isValid() const { return Code != 0 && Tag != 0; }
46  void dump(raw_ostream &OS) const;
47  const SmallVectorImpl<DWARFAttribute> &getAttributes() const {
48    return Attributes;
49  }
50};
51
52}
53
54#endif
55