hanchenye-llvm-project/lldb/source/Target/CPPLanguageRuntime.cpp

121 lines
3.3 KiB
C++

//===-- CPPLanguageRuntime.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/Target/CPPLanguageRuntime.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Target/ExecutionContext.h"
using namespace lldb;
using namespace lldb_private;
//----------------------------------------------------------------------
// Destructor
//----------------------------------------------------------------------
CPPLanguageRuntime::~CPPLanguageRuntime()
{
}
CPPLanguageRuntime::CPPLanguageRuntime (Process *process) :
LanguageRuntime (process)
{
}
bool
CPPLanguageRuntime::GetObjectDescription (Stream &str, ValueObject &object)
{
// C++ has no generic way to do this.
return false;
}
bool
CPPLanguageRuntime::GetObjectDescription (Stream &str, Value &value, ExecutionContextScope *exe_scope)
{
// C++ has no generic way to do this.
return false;
}
bool
CPPLanguageRuntime::IsCPPMangledName (const char *name)
{
// FIXME, we should really run through all the known C++ Language plugins and ask each one if
// this is a C++ mangled name, but we can put that off till there is actually more than one
// we care about.
if (name && name[0] == '_' && name[1] == 'Z')
return true;
else
return false;
}
bool
CPPLanguageRuntime::StripNamespacesFromVariableName (const char *name, const char *&base_name_start, const char *&base_name_end)
{
if (base_name_end == NULL)
base_name_end = name + strlen (name);
const char *last_colon = NULL;
for (const char *ptr = base_name_end; ptr != name; ptr--)
{
if (*ptr == ':')
{
last_colon = ptr;
break;
}
}
if (last_colon == NULL)
{
base_name_start = name;
return true;
}
// Can't have a C++ name that begins with a single ':', nor contains an internal single ':'
if (last_colon == name)
return false;
else if (last_colon[-1] != ':')
return false;
else
{
// FIXME: should check if there is
base_name_start = last_colon + 1;
return true;
}
}
bool
CPPLanguageRuntime::IsPossibleCPPCall (const char *name, const char *&base_name_start, const char *&base_name_end)
{
if (!name)
return false;
// For now, I really can't handle taking template names apart, so if you
// have < or > I'll say "could be CPP but leave the base_name empty which
// means I couldn't figure out what to use for that.
// FIXME: Do I need to do more sanity checking here?
if (strchr(name, '>') != NULL || strchr (name, '>') != NULL)
return true;
size_t name_len = strlen (name);
if (name[name_len - 1] == ')')
{
// We've got arguments.
base_name_end = strchr (name, '(');
if (base_name_end == NULL)
return false;
// FIXME: should check that this parenthesis isn't a template specialized
// on a function type or something gross like that...
}
else
base_name_end = name + strlen (name);
return StripNamespacesFromVariableName (name, base_name_start, base_name_end);
}