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//===-- DWARFAttribute.h ----------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFATTRIBUTE_H
#define LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFATTRIBUTE_H
#include "DWARFDefines.h"
#include "DWARFFormValue.h"
#include "llvm/ADT/SmallVector.h"
#include <vector>
class DWARFUnit;
class DWARFAttribute {
public:
DWARFAttribute(dw_attr_t attr, dw_form_t form,
DWARFFormValue::ValueType value)
: m_attr(attr), m_form(form), m_value(value) {}
dw_attr_t get_attr() const { return m_attr; }
dw_form_t get_form() const { return m_form; }
DWARFFormValue::ValueType get_value() const { return m_value; }
void get(dw_attr_t &attr, dw_form_t &form,
DWARFFormValue::ValueType &val) const {
attr = m_attr;
form = m_form;
val = m_value;
}
protected:
dw_attr_t m_attr;
dw_form_t m_form;
DWARFFormValue::ValueType m_value;
};
class DWARFAttributes {
public:
DWARFAttributes();
~DWARFAttributes();
void Append(const DWARFFormValue &form_value, dw_offset_t attr_die_offset,
dw_attr_t attr);
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_form_t FormAtIndex(uint32_t i) const { return m_infos[i].attr.get_form(); }
DWARFFormValue::ValueType ValueAtIndex(uint32_t i) const {
return m_infos[i].attr.get_value();
}
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(); }
protected:
struct AttributeValue {
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 // LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFATTRIBUTE_H
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