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//===-- DWARFFormValue.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_DWARFFormValue_h_
#define SymbolFileDWARF_DWARFFormValue_h_
#include <stddef.h> // for NULL
class DWARFCompileUnit;
class DWARFFormValue
{
public:
typedef struct ValueTypeTag
{
ValueTypeTag() :
value(),
data(NULL)
{
value.uval = 0;
}
union
{
uint64_t uval;
int64_t sval;
const char* cstr;
} value;
const uint8_t* data;
} ValueType;
enum
{
eValueTypeInvalid = 0,
eValueTypeUnsigned,
eValueTypeSigned,
eValueTypeCStr,
eValueTypeBlock
};
DWARFFormValue(dw_form_t form = 0);
dw_form_t Form() const { return m_form; }
void SetForm(dw_form_t form) { m_form = form; }
const ValueType& Value() const { return m_value; }
void Dump(lldb_private::Stream &s, const lldb_private::DataExtractor* debug_str_data, const DWARFCompileUnit* cu) const;
bool ExtractValue(const lldb_private::DataExtractor& data,
lldb::offset_t* offset_ptr,
const DWARFCompileUnit* cu);
bool IsInlinedCStr() const { return (m_value.data != NULL) && m_value.data == (uint8_t*)m_value.value.cstr; }
const uint8_t* BlockData() const;
uint64_t Reference(const DWARFCompileUnit* cu) const;
uint64_t Reference (dw_offset_t offset) const;
bool ResolveCompileUnitReferences(const DWARFCompileUnit* cu);
bool Boolean() const { return m_value.value.uval != 0; }
uint64_t Unsigned() const { return m_value.value.uval; }
void SetUnsigned(uint64_t uval) { m_value.value.uval = uval; }
int64_t Signed() const { return m_value.value.sval; }
void SetSigned(int64_t sval) { m_value.value.sval = sval; }
const char* AsCString(const lldb_private::DataExtractor* debug_str_data_ptr) const;
bool SkipValue(const lldb_private::DataExtractor& debug_info_data, lldb::offset_t *offset_ptr, const DWARFCompileUnit* cu) const;
static bool SkipValue(const dw_form_t form, const lldb_private::DataExtractor& debug_info_data, lldb::offset_t *offset_ptr, const DWARFCompileUnit* cu);
// static bool TransferValue(dw_form_t form, const lldb_private::DataExtractor& debug_info_data, lldb::offset_t *offset_ptr, const DWARFCompileUnit* cu, BinaryStreamBuf& out_buff);
// static bool TransferValue(const DWARFFormValue& formValue, const DWARFCompileUnit* cu, BinaryStreamBuf& out_buff);
// static bool PutUnsigned(dw_form_t form, dw_offset_t offset, uint64_t value, BinaryStreamBuf& out_buff, const DWARFCompileUnit* cu, bool fixup_cu_relative_refs);
static bool IsBlockForm(const dw_form_t form);
static bool IsDataForm(const dw_form_t form);
static const uint8_t * GetFixedFormSizesForAddressSize (uint8_t addr_size);
static int Compare (const DWARFFormValue& a, const DWARFFormValue& b, const DWARFCompileUnit* a_cu, const DWARFCompileUnit* b_cu, const lldb_private::DataExtractor* debug_str_data_ptr);
protected:
dw_form_t m_form; // Form for this value
ValueType m_value; // Contains all data for the form
};
#endif // SymbolFileDWARF_DWARFFormValue_h_
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