1 //===-- DWARFAttribute.h ----------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef SymbolFileDWARF_DWARFAttribute_h_
11 #define SymbolFileDWARF_DWARFAttribute_h_
13 #include "DWARFDefines.h"
14 #include "llvm/ADT/SmallVector.h"
17 class DWARFCompileUnit;
20 class DWARFAttribute {
22 DWARFAttribute(dw_attr_t attr, dw_form_t form) : m_attr(attr), m_form(form) {}
24 void set(dw_attr_t attr, dw_form_t form) {
28 void set_attr(dw_attr_t attr) { m_attr = attr; }
29 void set_form(dw_form_t form) { m_form = form; }
30 dw_attr_t get_attr() const { return m_attr; }
31 dw_form_t get_form() const { return m_form; }
32 void get(dw_attr_t &attr, dw_form_t &form) const {
36 bool operator==(const DWARFAttribute &rhs) const {
37 return m_attr == rhs.m_attr && m_form == rhs.m_form;
39 typedef std::vector<DWARFAttribute> collection;
40 typedef collection::iterator iterator;
41 typedef collection::const_iterator const_iterator;
48 class DWARFAttributes {
53 void Append(const DWARFCompileUnit *cu, dw_offset_t attr_die_offset,
54 dw_attr_t attr, dw_form_t form);
55 const DWARFCompileUnit *CompileUnitAtIndex(uint32_t i) const {
58 dw_offset_t DIEOffsetAtIndex(uint32_t i) const {
59 return m_infos[i].die_offset;
61 dw_attr_t AttributeAtIndex(uint32_t i) const {
62 return m_infos[i].attr.get_attr();
64 dw_attr_t FormAtIndex(uint32_t i) const { return m_infos[i].attr.get_form(); }
65 bool ExtractFormValueAtIndex(uint32_t i, DWARFFormValue &form_value) const;
66 uint64_t FormValueAsUnsignedAtIndex(uint32_t i, uint64_t fail_value) const;
67 uint64_t FormValueAsUnsigned(dw_attr_t attr, uint64_t fail_value) const;
68 uint32_t FindAttributeIndex(dw_attr_t attr) const;
69 bool ContainsAttribute(dw_attr_t attr) const;
70 bool RemoveAttribute(dw_attr_t attr);
71 void Clear() { m_infos.clear(); }
72 size_t Size() const { return m_infos.size(); }
75 struct AttributeValue {
76 const DWARFCompileUnit *cu; // Keep the compile unit with each attribute in
77 // case we have DW_FORM_ref_addr values
78 dw_offset_t die_offset;
81 typedef llvm::SmallVector<AttributeValue, 8> collection;
85 #endif // SymbolFileDWARF_DWARFAttribute_h_