llvm-project/lldb/source/Expression/ClangExpressionVariable.cpp

143 lines
3.7 KiB
C++

//===-- ClangExpressionVariable.cpp -----------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Expression/ClangExpressionVariable.h"
#include "clang/AST/ASTContext.h"
#include "lldb/Core/ConstString.h"
#include "lldb/Core/DataExtractor.h"
#include "lldb/Core/Stream.h"
#include "lldb/Core/Value.h"
#include "lldb/Core/ValueObjectConstResult.h"
#include "lldb/Target/ExecutionContext.h"
#include "lldb/Target/Process.h"
using namespace lldb_private;
using namespace clang;
ClangExpressionVariable::ClangExpressionVariable(ExecutionContextScope *exe_scope, lldb::ByteOrder byte_order, uint32_t addr_byte_size) :
m_parser_vars(),
m_jit_vars (),
m_flags (EVNone),
m_frozen_sp (ValueObjectConstResult::Create (exe_scope, byte_order, addr_byte_size))
{
}
ClangExpressionVariable::ClangExpressionVariable (ExecutionContextScope *exe_scope,
Value &value,
const ConstString &name,
uint16_t flags) :
m_parser_vars(),
m_jit_vars (),
m_flags (flags),
m_frozen_sp (ValueObjectConstResult::Create (exe_scope, value, name))
{
}
ClangExpressionVariable::ClangExpressionVariable (const lldb::ValueObjectSP &valobj_sp) :
m_parser_vars(),
m_jit_vars (),
m_flags (EVNone),
m_frozen_sp (valobj_sp)
{
}
//----------------------------------------------------------------------
/// Return the variable's size in bytes
//----------------------------------------------------------------------
size_t
ClangExpressionVariable::GetByteSize ()
{
return m_frozen_sp->GetByteSize();
}
const ConstString &
ClangExpressionVariable::GetName ()
{
return m_frozen_sp->GetName();
}
lldb::ValueObjectSP
ClangExpressionVariable::GetValueObject()
{
return m_frozen_sp;
}
RegisterInfo *
ClangExpressionVariable::GetRegisterInfo()
{
return m_frozen_sp->GetValue().GetRegisterInfo();
}
void
ClangExpressionVariable::SetRegisterInfo (const RegisterInfo *reg_info)
{
return m_frozen_sp->GetValue().SetContext (Value::eContextTypeRegisterInfo, const_cast<RegisterInfo *>(reg_info));
}
ClangASTType
ClangExpressionVariable::GetClangType()
{
return m_frozen_sp->GetClangType();
}
void
ClangExpressionVariable::SetClangType(const ClangASTType &clang_type)
{
m_frozen_sp->GetValue().SetClangType(clang_type);
}
TypeFromUser
ClangExpressionVariable::GetTypeFromUser()
{
TypeFromUser tfu (m_frozen_sp->GetClangType());
return tfu;
}
uint8_t *
ClangExpressionVariable::GetValueBytes()
{
const size_t byte_size = m_frozen_sp->GetByteSize();
if (byte_size > 0)
{
if (m_frozen_sp->GetDataExtractor().GetByteSize() < byte_size)
{
m_frozen_sp->GetValue().ResizeData(byte_size);
m_frozen_sp->GetValue().GetData (m_frozen_sp->GetDataExtractor());
}
return const_cast<uint8_t *>(m_frozen_sp->GetDataExtractor().GetDataStart());
}
return NULL;
}
void
ClangExpressionVariable::SetName (const ConstString &name)
{
m_frozen_sp->SetName (name);
}
void
ClangExpressionVariable::ValueUpdated ()
{
m_frozen_sp->ValueUpdated ();
}
void
ClangExpressionVariable::TransferAddress (bool force)
{
if (m_live_sp.get() == NULL)
return;
if (m_frozen_sp.get() == NULL)
return;
if (force || (m_frozen_sp->GetLiveAddress() == LLDB_INVALID_ADDRESS))
m_frozen_sp->SetLiveAddress(m_live_sp->GetLiveAddress());
}