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//===-- DWARFAttribute.h ----------------------------------------*- C++ -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#ifndef SymbolFileDWARF_DWARFAttribute_h_
#define SymbolFileDWARF_DWARFAttribute_h_
#include "DWARFDefines.h"
#include "DWARFFormValue.h"
#include "llvm/ADT/SmallVector.h"
#include <vector>
class DWARFUnit;
class DWARFAttribute {
DWARFAttribute(dw_attr_t attr, dw_form_t form,
DWARFFormValue::ValueType value)
: m_attr(attr), m_form(form), m_value(value) {}
void set(dw_attr_t attr, dw_form_t form) {
m_attr = attr;
m_form = form;
dw_attr_t get_attr() const { return m_attr; }
dw_form_t get_form() const { return m_form; }
void get(dw_attr_t &attr, dw_form_t &form,
DWARFFormValue::ValueType &val) const {
attr = m_attr;
form = m_form;
val = m_value;
bool operator==(const DWARFAttribute &rhs) const {
return m_attr == rhs.m_attr && m_form == rhs.m_form;
typedef std::vector<DWARFAttribute> collection;
typedef collection::iterator iterator;
typedef collection::const_iterator const_iterator;
dw_attr_t m_attr;
dw_form_t m_form;
DWARFFormValue::ValueType m_value;
class DWARFAttributes {
void Append(const DWARFUnit *cu, dw_offset_t attr_die_offset,
dw_attr_t attr, dw_form_t form);
const DWARFUnit *CompileUnitAtIndex(uint32_t i) const {
return m_infos[i].cu;
dw_offset_t DIEOffsetAtIndex(uint32_t i) const {
return m_infos[i].die_offset;
dw_attr_t AttributeAtIndex(uint32_t i) const {
return m_infos[i].attr.get_attr();
dw_attr_t FormAtIndex(uint32_t i) const { return m_infos[i].attr.get_form(); }
bool ExtractFormValueAtIndex(uint32_t i, DWARFFormValue &form_value) const;
DWARFDIE FormValueAsReferenceAtIndex(uint32_t i) const;
DWARFDIE FormValueAsReference(dw_attr_t attr) const;
uint32_t FindAttributeIndex(dw_attr_t attr) const;
void Clear() { m_infos.clear(); }
size_t Size() const { return m_infos.size(); }
struct AttributeValue {
const DWARFUnit *cu; // Keep the compile unit with each attribute in
// case we have DW_FORM_ref_addr values
dw_offset_t die_offset;
DWARFAttribute attr;
typedef llvm::SmallVector<AttributeValue, 8> collection;
collection m_infos;
#endif // SymbolFileDWARF_DWARFAttribute_h_