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// -*- Mode: C++; tab-width: 2; -*-
// vi: set ts=2:
//
// $Id: rtti.C,v 1.14 2003/08/26 09:17:44 oliver Exp $
//
#include <BALL/COMMON/global.h>
#include <BALL/COMMON/rtti.h>
#include <typeinfo>
#include <ctype.h>
// Nasty hacks to demangle the stupid name mangling schemes
// of diverse compilers.
// GNU g++:
// Starting V3.0 we use __cxa_demangle to demangle the names,
// which is declared in <cxxabi.h>.
#ifdef BALL_COMPILER_GXX
# if (BALL_COMPILER_VERSION_MAJOR > 2)
#include <cxxabi.h>
# endif
#endif
// LLVM/Clang always offers <cxxabi.h>
#ifdef BALL_COMPILER_LLVM
#include <cxxabi.h>
#endif
#ifdef BALL_COMPILER_INTEL
// Declare the __cxa_demangle method for Intel's C++ compiler.
// Intel does not provide the cxxabi.h header G++ provides, so
// this hack is somewhat rough.
namespace abi
{
extern "C" char* __cxa_demangle(const char*, char*, size_t*, int*);
}
#endif
namespace BALL
{
string streamClassName(const std::type_info& t)
{
#if (defined(BALL_COMPILER_GXX) || defined(BALL_COMPILER_INTEL)|| defined(BALL_COMPILER_LLVM))
#if defined(BALL_COMPILER_GXX) && (BALL_COMPILER_VERSION_MAJOR < 3)
string s(t.name());
s = GNUDemangling::demangle(s);
#else
char buf[BALL_MAX_LINE_LENGTH];
size_t length = BALL_MAX_LINE_LENGTH - 1;
int status = 0;
string s("_Z");
s += t.name();
char* name = abi::__cxa_demangle(s.c_str(), buf, &length, &status);
if (name != 0)
{
s = name;
}
#endif
#else
string s(t.name());
#ifdef BALL_COMPILER_MSVC
// MSVC prefixes all class names with "class " -- delete it!
while (s.find("class ") != string::npos)
s.erase(s.find("class "), 6);
#endif
#endif
for (unsigned int i = 0; i < s.size(); i++)
{
if (s[i] == ' ')
{
s[i] = '_';
}
}
if (string(s, 0, 6) == "const_")
{
s.erase(0, 6);
}
return s;
}
#ifdef BALL_COMPILER_GXX
# if (BALL_COMPILER_VERSION_MAJOR < 3)
namespace GNUDemangling
{
string decode_mangling(string& s)
{
string tmp;
int i,len;
if (s.size() == 0)
return "";
if (!isdigit(s[0]))
{ // decode GNU shortcuts for built-in types
char c = s[0];
s.erase(0, 1);
switch (c)
{
case 'Q': // start of class name
len = atoi(string(s,1,1).c_str());
s.erase(0, 1);
for (i = 0; i < len; i++)
{
tmp.append(decode_mangling(s));
tmp.append("::");
}
tmp.erase(tmp.end() - 2, tmp.end());
break;
case 'Z': // template parameter
return decode_mangling(s);
break;
case 'i':
return "int";
break;
case 'l':
return "long";
break;
case 's':
return "short";
break;
case 'c':
return "char";
break;
case 'x':
return "long long";
break;
case 'f':
return "float";
break;
case 'd':
return "double";
break;
case 'b':
return "bool";
break;
case 'w':
return "wchar_t";
break;
case 'U': // unsigned variants
tmp = "unsigned ";
tmp.append(decode_mangling(s));
break;
case 'C': // const
tmp = "const ";
tmp.append(decode_mangling(s));
break;
case 'P': // pointer
tmp = decode_mangling(s);
tmp.append("*");
break;
case 'R': // reference
tmp = decode_mangling(s);
tmp.append("&");
break;
case 't':
tmp = decode_mangling(s);
tmp.append("<");
len = atoi(string(1, s[0]).c_str());
s.erase(0,1);
for (i = 0; i < len; i++)
{
tmp.append(decode_mangling(s));
tmp.append(",");
}
// remove last ','
tmp.erase(tmp.end() - 1, tmp.end());
tmp.append(">");
break;
default:
tmp = "?";
}
return tmp;
}
else
{
i = s.find_first_not_of("0123456789");
len = atol(string(s, 0, i).c_str());
if (len == 0)
{
s.erase(0,1);
if (s.size() > 0)
{
return decode_mangling(s);
}
else
{
return "";
}
}
else
{
string h(s, i, len);
s.erase(0, i + len);
return h;
}
}
}
string demangle(string s)
{
string tmp = decode_mangling(s);
while (tmp[tmp.size() - 1] == ':')
{
tmp.erase(tmp.end() - 1, tmp.end());
}
while (tmp[0] == ':')
{
tmp.erase(0, 1);
}
return tmp;
}
} // namespace GNUDemangling
# endif // (BALL_COMPILER_VERSION_MAJOR < 3)
#endif // BALL_COMPILER_GXX
} // namespace BALL
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