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1//===-- DWARFAttribute.h ----------------------------------------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFATTRIBUTE_H10#define LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFATTRIBUTE_H11 12#include "DWARFDefines.h"13#include "DWARFFormValue.h"14#include "llvm/ADT/SmallVector.h"15#include <vector>16 17namespace lldb_private::plugin {18namespace dwarf {19class DWARFUnit;20 21class DWARFAttribute {22public:23 DWARFAttribute(dw_attr_t attr, dw_form_t form,24 DWARFFormValue::ValueType value)25 : m_attr(attr), m_form(form), m_value(value) {}26 27 dw_attr_t get_attr() const { return m_attr; }28 dw_form_t get_form() const { return m_form; }29 DWARFFormValue::ValueType get_value() const { return m_value; }30 void get(dw_attr_t &attr, dw_form_t &form,31 DWARFFormValue::ValueType &val) const {32 attr = m_attr;33 form = m_form;34 val = m_value;35 }36 37protected:38 dw_attr_t m_attr;39 dw_form_t m_form;40 DWARFFormValue::ValueType m_value;41};42 43class DWARFAttributes {44public:45 DWARFAttributes();46 ~DWARFAttributes();47 48 void Append(const DWARFFormValue &form_value, dw_offset_t attr_die_offset,49 dw_attr_t attr);50 DWARFUnit *CompileUnitAtIndex(uint32_t i) const { return m_infos[i].cu; }51 dw_offset_t DIEOffsetAtIndex(uint32_t i) const {52 return m_infos[i].die_offset;53 }54 dw_attr_t AttributeAtIndex(uint32_t i) const {55 return m_infos[i].attr.get_attr();56 }57 dw_form_t FormAtIndex(uint32_t i) const { return m_infos[i].attr.get_form(); }58 DWARFFormValue::ValueType ValueAtIndex(uint32_t i) const {59 return m_infos[i].attr.get_value();60 }61 bool ExtractFormValueAtIndex(uint32_t i, DWARFFormValue &form_value) const;62 DWARFDIE FormValueAsReferenceAtIndex(uint32_t i) const;63 DWARFDIE FormValueAsReference(dw_attr_t attr) const;64 uint32_t FindAttributeIndex(dw_attr_t attr) const;65 void Clear() { m_infos.clear(); }66 size_t Size() const { return m_infos.size(); }67 68protected:69 struct AttributeValue {70 DWARFUnit *cu; // Keep the compile unit with each attribute in71 // case we have DW_FORM_ref_addr values72 dw_offset_t die_offset;73 DWARFAttribute attr;74 };75 typedef llvm::SmallVector<AttributeValue, 8> collection;76 collection m_infos;77};78} // namespace dwarf79} // namespace lldb_private::plugin80 81#endif // LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFATTRIBUTE_H82