[*] Demangle

Include/Aurora/Debug/Debug.hpp

@@ -75,6 +75,10 @@ namespace Aurora::Debug
     */
     AUKN_SYM AU_NORETURN void Panic();
 
+    /**
+        Localize platform dependent abi mangled name
+    */
+    AUKN_SYM AuResult<AuString> DemangleName(const AuString &pName);
     
     AUKN_SYM void DebugBreak();
 }

Source/Debug/Demangle.cpp

@@ -0,0 +1,82 @@
+/***
+    Copyright (C) 2022 J Reece Wilson (a/k/a "Reece"). All rights reserved.
+
+    File: Demangle.cpp
+    Date: 2022-3-31
+    Author: Reece
+***/
+#pragma once
+#include <Source/RuntimeInternal.hpp>
+#include "Debug.hpp"
+#include <DbgHelp.h>
+
+namespace Aurora::Debug
+{
+    AUKN_SYM AuResult<AuString> DemangleName(const AuString &pName)
+    {
+        // Wine impl:  https://github.com/wine-mirror/wine/blob/master/dlls/msvcrt/undname.c
+        // Google impl: idr where i saw it last
+
+        AuResult<AuString> ret;
+
+    #if defined(AURORA_IS_MODERNNT_DERIVED)
+        struct win32poll
+        {
+            const char *ptr;
+            char name[4096] = {0};
+        } poll;
+
+        poll.ptr = {};
+
+        if (pName.size() >= AuArraySize(poll.name))
+        {
+            return ret;
+        }
+
+        AuMemcpy(poll.name, pName.data(), pName.size());
+        auto pInfo = (__std_type_info_data *)&poll;
+
+    #ifdef _M_CEE_PURE
+        ret.type = __std_type_info_name((__std_type_info_data *)&poll, static_cast<__type_info_node *>(__type_info_root_node.ToPointer()));
+    #else
+        ret.type = __std_type_info_name(pInfo, &__type_info_root_node);
+    #endif
+
+        // On failure, the undecorated name is assigned the dname docorated name, which is offset by +1 (the '?' or '_' hint)
+        if (strcmp(pInfo->_UndecoratedName, pInfo->_DecoratedName + 1) == 0)
+        {
+            auto characters = UnDecorateSymbolName(pName.c_str(), poll.name, AuArraySize(poll.name), UNDNAME_32_BIT_DECODE);
+            if (!characters)
+            {
+                return ret;
+            }
+
+            ret.type = AuString(poll.name, characters);
+        }
+
+    #else 
+        int status;
+        char *res = abi::__cxa_demangle(pName.c_str(),
+                                        nullptr,
+                                        nullptr,
+                                        &status);
+
+        if (!res)
+        {
+            return ret;
+        }
+
+        if (status != 0)
+        {
+            free(res);
+            return ret;
+        }
+
+        ret.type = res;
+        free(res);
+    #endif
+
+        ret.Complete();
+        return ret;
+    }
+}

Source/Debug/Demangle.hpp

@@ -0,0 +1,13 @@
+/***
+    Copyright (C) 2022 J Reece Wilson (a/k/a "Reece"). All rights reserved.
+
+    File: Demangle.hpp
+    Date: 2022-3-31
+    Author: Reece
+***/
+#pragma once
+
+namespace Aurora::Debug
+{
+
+}