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 "DWARFFormValue.h"
15 #include "llvm/ADT/SmallVector.h"
20 class DWARFAttribute {
22 DWARFAttribute(dw_attr_t attr, dw_form_t form,
23 DWARFFormValue::ValueType value)
24 : m_attr(attr), m_form(form), m_value(value) {}
26 void set(dw_attr_t attr, dw_form_t form) {
30 void set_attr(dw_attr_t attr) { m_attr = attr; }
31 void set_form(dw_form_t form) { m_form = form; }
32 dw_attr_t get_attr() const { return m_attr; }
33 dw_form_t get_form() const { return m_form; }
34 void get(dw_attr_t &attr, dw_form_t &form,
35 DWARFFormValue::ValueType &val) const {
40 bool operator==(const DWARFAttribute &rhs) const {
41 return m_attr == rhs.m_attr && m_form == rhs.m_form;
43 typedef std::vector<DWARFAttribute> collection;
44 typedef collection::iterator iterator;
45 typedef collection::const_iterator const_iterator;
50 DWARFFormValue::ValueType m_value;
53 class DWARFAttributes {
58 void Append(const DWARFUnit *cu, dw_offset_t attr_die_offset,
59 dw_attr_t attr, dw_form_t form);
60 const DWARFUnit *CompileUnitAtIndex(uint32_t i) const {
63 dw_offset_t DIEOffsetAtIndex(uint32_t i) const {
64 return m_infos[i].die_offset;
66 dw_attr_t AttributeAtIndex(uint32_t i) const {
67 return m_infos[i].attr.get_attr();
69 dw_attr_t FormAtIndex(uint32_t i) const { return m_infos[i].attr.get_form(); }
70 bool ExtractFormValueAtIndex(uint32_t i, DWARFFormValue &form_value) const;
71 uint64_t FormValueAsUnsignedAtIndex(uint32_t i, uint64_t fail_value) const;
72 uint64_t FormValueAsUnsigned(dw_attr_t attr, uint64_t fail_value) const;
73 uint32_t FindAttributeIndex(dw_attr_t attr) const;
74 bool ContainsAttribute(dw_attr_t attr) const;
75 bool RemoveAttribute(dw_attr_t attr);
76 void Clear() { m_infos.clear(); }
77 size_t Size() const { return m_infos.size(); }
80 struct AttributeValue {
81 const DWARFUnit *cu; // Keep the compile unit with each attribute in
82 // case we have DW_FORM_ref_addr values
83 dw_offset_t die_offset;
86 typedef llvm::SmallVector<AttributeValue, 8> collection;
90 #endif // SymbolFileDWARF_DWARFAttribute_h_