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

90 lines
2.7 KiB
C++

//===-- ClangPersistentVariables.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/ClangPersistentVariables.h"
#include "lldb/Core/DataExtractor.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/StreamString.h"
#include "lldb/Core/Value.h"
#include "llvm/ADT/StringMap.h"
using namespace lldb;
using namespace lldb_private;
ClangPersistentVariables::ClangPersistentVariables () :
ClangExpressionVariableList(),
m_next_persistent_variable_id (0)
{
}
ClangExpressionVariableSP
ClangPersistentVariables::CreatePersistentVariable (const lldb::ValueObjectSP &valobj_sp)
{
ClangExpressionVariableSP var_sp (CreateVariable(valobj_sp));
return var_sp;
}
ClangExpressionVariableSP
ClangPersistentVariables::CreatePersistentVariable (ExecutionContextScope *exe_scope,
const ConstString &name,
const TypeFromUser& user_type,
lldb::ByteOrder byte_order,
uint32_t addr_byte_size)
{
ClangExpressionVariableSP var_sp (GetVariable(name));
if (!var_sp)
var_sp = CreateVariable(exe_scope, name, user_type, byte_order, addr_byte_size);
return var_sp;
}
void
ClangPersistentVariables::RemovePersistentVariable (lldb::ClangExpressionVariableSP variable)
{
RemoveVariable(variable);
const char *name = variable->GetName().AsCString();
if (*name != '$')
return;
name++;
if (strtoul(name, NULL, 0) == m_next_persistent_variable_id - 1)
m_next_persistent_variable_id--;
}
ConstString
ClangPersistentVariables::GetNextPersistentVariableName ()
{
char name_cstr[256];
::snprintf (name_cstr, sizeof(name_cstr), "$%u", m_next_persistent_variable_id++);
ConstString name(name_cstr);
return name;
}
void
ClangPersistentVariables::RegisterPersistentType (const ConstString &name,
clang::TypeDecl *type_decl)
{
m_persistent_types.insert(std::pair<const char*, clang::TypeDecl*>(name.GetCString(), type_decl));
}
clang::TypeDecl *
ClangPersistentVariables::GetPersistentType (const ConstString &name)
{
PersistentTypeMap::const_iterator i = m_persistent_types.find(name.GetCString());
if (i == m_persistent_types.end())
return NULL;
else
return i->second;
}