93 lines
2.4 KiB
C++
93 lines
2.4 KiB
C++
/***
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Copyright (C) 2022 J Reece Wilson (a/k/a "Reece"). All rights reserved.
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File: Demangle.cpp
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Date: 2022-3-31
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Author: Reece
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***/
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#include <Source/RuntimeInternal.hpp>
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#include "Debug.hpp"
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#if defined(AURORA_IS_MODERNNT_DERIVED)
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#include <DbgHelp.h>
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#elif defined(AURORA_COMPILER_CLANG)
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#include <cxxabi.h>
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#endif
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namespace Aurora::Debug
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{
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AUKN_SYM AuResult<AuString> DemangleName(const AuString &pName)
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{
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// Wine impl: https://github.com/wine-mirror/wine/blob/master/dlls/msvcrt/undname.c
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// Google impl: idr where i saw it last
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AuResult<AuString> ret;
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#if defined(AURORA_IS_MODERNNT_DERIVED)
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struct win32poll
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{
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const char *ptr;
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char name[4096] = {0};
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} poll;
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poll.ptr = {};
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if (pName.size() >= AuArraySize(poll.name))
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{
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return ret;
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}
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AuMemcpy(poll.name, pName.data(), pName.size());
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auto pInfo = (__std_type_info_data *)&poll;
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#ifdef _M_CEE_PURE
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ret.type = __std_type_info_name((__std_type_info_data *)&poll, static_cast<__type_info_node *>(__type_info_root_node.ToPointer()));
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#else
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ret.type = __std_type_info_name(pInfo, &__type_info_root_node);
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#endif
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// On failure, the undecorated name is assigned the dname docorated name, which is offset by +1 (the '?' or '_' hint)
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if (strcmp(pInfo->_UndecoratedName, pInfo->_DecoratedName + 1) == 0)
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{
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if (pUnDecorateSymbolName)
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{
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auto characters = pUnDecorateSymbolName(pName.c_str(), poll.name, AuArraySize(poll.name), UNDNAME_32_BIT_DECODE);
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if (!characters)
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{
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return ret;
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}
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ret.type = AuString(poll.name, characters);
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}
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else
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{
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return ret;
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}
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}
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#else
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int status;
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char *res = abi::__cxa_demangle(pName.c_str(),
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nullptr,
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nullptr,
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&status);
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if (!res)
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{
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return ret;
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}
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if (status != 0)
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{
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free(res);
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return ret;
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}
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ret.type = res;
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free(res);
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#endif
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ret.Complete();
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return ret;
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}
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} |