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//===-- DWARFAttribute.h ----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef SymbolFileDWARF_DWARFAttribute_h_
#define SymbolFileDWARF_DWARFAttribute_h_
#include "llvm/ADT/SmallVector.h"
#include "DWARFDefines.h"
#include <vector>
class DWARFCompileUnit;
class DWARFFormValue;
class DWARFAttribute
{
public:
DWARFAttribute(dw_attr_t attr, dw_form_t form) :
m_attr (attr),
m_form (form)
{
}
void set (dw_attr_t attr, dw_form_t form) { m_attr = attr; m_form = form; }
void set_attr (dw_attr_t attr) { m_attr = attr; }
void set_form (dw_form_t form) { 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) const
{
attr = m_attr;
form = m_form;
}
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;
protected:
dw_attr_t m_attr;
dw_form_t m_form;
};
class DWARFAttributes
{
public:
DWARFAttributes();
~DWARFAttributes();
void Append(const DWARFCompileUnit *cu, dw_offset_t attr_die_offset, dw_attr_t attr, dw_form_t form);
const DWARFCompileUnit * 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;
uint64_t FormValueAsUnsignedAtIndex (uint32_t i, uint64_t fail_value) const;
uint64_t FormValueAsUnsigned (dw_attr_t attr, uint64_t fail_value) const;
uint32_t FindAttributeIndex(dw_attr_t attr) const;
bool ContainsAttribute(dw_attr_t attr) const;
bool RemoveAttribute(dw_attr_t attr);
void Clear() { m_infos.clear(); }
size_t Size() const { return m_infos.size(); }
protected:
struct AttributeValue
{
const DWARFCompileUnit *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_
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