demangle.cpp
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#include "crucible/core/demangle.hpp"
#include <cstdlib>
#include <cxxabi.h>
namespace crucible
{
auto demangle(ffi_string<char> const &mangled_symbol) -> demangle_result<ffi_string<char>>
{
#if CRUCIBLE_PLATFORM_HAS_CXA_DEMANGLE
char *demangled_symbol_data { nullptr };
std::size_t demangled_symbol_size { 0 };
int demangled_symbol_status { 0 };
demangled_symbol_data = abi::__cxa_demangle(mangled_symbol.data(), nullptr, &demangled_symbol_size, &demangled_symbol_status);
ffi_string<char> demangled_symbol;
if (demangled_symbol_data) {
demangled_symbol = make_ffi_string(demangled_symbol_data, demangled_symbol_size);
std::free(demangled_symbol_data);
}
if (demangled_symbol_status == 0) {
return make_success<ffi_string<char>>(demangled_symbol.data(), demangled_symbol.size());
}
if (demangled_symbol_status == -1) {
return make_failure<demangle_error>(insufficient_demangle_memory {});
}
if (demangled_symbol_status == -2) {
return make_success(mangled_symbol);
}
if (demangled_symbol_status == -3) {
return make_failure<demangle_error>(invalid_demangle_arguments {});
}
return make_failure<demangle_error>(unknown_demangle_error {});
#else // CRUCIBLE_PLATFORM_HAS_CXA_DEMANGLE
return make_success(mangled_symbol);
#endif // CRUCIBLE_PLATFORM_HAS_CXA_DEMANGLE
}
}