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Introspection.cpp
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Introspection.cpp
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#include "Crash/Introspection/Introspection.h"
#include "Crash/Modules/ModuleHandler.h"
#include "Crash/PDB/PdbHandler.h"
#define MAGIC_ENUM_RANGE_MAX 256
#include <magic_enum.hpp>
namespace Crash::Introspection::F4
{
using filter_results = std::vector<std::pair<std::string, std::string>>;
[[nodiscard]] std::string quoted(std::string_view a_str)
{
return fmt::format("\"{}\""sv, a_str);
}
namespace BSResource
{
class LooseFileStreamBase
{
public:
using value_type = RE::BSResource::LooseFileStreamBase;
static void filter(
filter_results& a_results,
const void* a_ptr, int tab_depth = 0) noexcept
{
const auto stream = static_cast<const value_type*>(a_ptr);
try {
const auto dirName = stream->GetDirName();
if (!dirName.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}Directory Name"sv,
"",
tab_depth),
quoted(dirName));
} catch (...) {}
try {
const auto fileName = stream->GetFileName();
if (!fileName.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}File Name"sv,
"",
tab_depth),
quoted(fileName));
} catch (...) {}
try {
const auto prefix = stream->GetPrefix();
if (!prefix.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}Prefix"sv,
"",
tab_depth),
quoted(prefix));
} catch (...) {}
}
};
}
namespace BSScript
{
namespace NF_util
{
class NativeFunctionBase
{
public:
using value_type = RE::BSScript::NF_util::NativeFunctionBase;
static void filter(
filter_results& a_results,
const void* a_ptr, int tab_depth = 0) noexcept
{
const auto function = static_cast<const value_type*>(a_ptr);
try {
const std::string_view name = function->GetName();
if (!name.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}Function"sv,
"",
tab_depth),
quoted(name));
} catch (...) {}
try {
const std::string_view objName = function->GetObjectTypeName();
if (!objName.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}Object"sv,
"",
tab_depth),
quoted(objName));
} catch (...) {}
try {
const std::string_view stateName = function->GetStateName();
if (!stateName.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}State"sv,
"",
tab_depth),
quoted(stateName));
} catch (...) {}
}
};
}
class ObjectTypeInfo
{
public:
using value_type = RE::BSScript::ObjectTypeInfo;
static void filter(
filter_results& a_results,
const void* a_ptr, int tab_depth = 0) noexcept
{
const auto info = static_cast<const value_type*>(a_ptr);
try {
const std::string_view name = info->name;
if (!name.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}Name"sv,
"",
tab_depth),
quoted(name));
} catch (...) {}
try {
const std::string_view docString = info->docString;
if (!docString.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}DocString"sv,
"",
tab_depth),
quoted(docString));
} catch (...) {}
}
};
}
class NiObjectNET
{
public:
using value_type = RE::NiObjectNET;
static void filter(
filter_results& a_results,
const void* a_ptr, int tab_depth = 0) noexcept
{
const auto object = static_cast<const value_type*>(a_ptr);
try {
const auto name = object->GetName();
if (!name.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}Name"sv,
"",
tab_depth),
quoted(name));
} catch (...) {}
}
};
class NiStream
{
public:
using value_type = RE::NiStream;
static void filter(
filter_results& a_results,
const void* a_ptr, int tab_depth = 0) noexcept
{
const auto object = static_cast<const value_type*>(a_ptr);
if (!object)
return;
try {
const auto fileName = object->GetFileName();
if (!fileName.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}File Name"sv,
""sv,
tab_depth),
quoted(fileName));
} catch (...) {}
try {
const auto& header = object->bsStreamHeader;
a_results.emplace_back(
fmt::format(
"{:\t>{}}Header"sv,
"",
tab_depth),
fmt::format(
"author: {} version: {} processScript: {} exportScript: {}",
header.author,
header.version,
header.processScript,
header.exportScript));
} catch (...) {}
try {
const auto lastLoadedRTTI = object->lastLoadedRTTI;
if (lastLoadedRTTI && lastLoadedRTTI[0])
a_results.emplace_back(
fmt::format(
"{:\t>{}}lastLoadedRTTI"sv,
"",
tab_depth),
quoted(lastLoadedRTTI));
} catch (...) {}
try {
const auto fileName = object->fileName;
if (fileName && fileName[0])
a_results.emplace_back(
fmt::format(
"{:\t>{}}fileName"sv,
"",
tab_depth),
quoted(fileName));
} catch (...) {}
try {
const auto filePath = object->filePath;
if (filePath && filePath[0])
a_results.emplace_back(
fmt::format(
"{:\t>{}}filePath"sv,
"",
tab_depth),
quoted(filePath));
} catch (...) {}
}
};
class NiTexture
{
public:
using value_type = RE::NiTexture;
static void filter(
filter_results& a_results,
const void* a_ptr, int tab_depth = 0) noexcept
{
const auto object = static_cast<const value_type*>(a_ptr);
if (!object)
return;
try {
const auto name = object ? object->name.c_str() : ""sv;
if (!name.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}Name"sv,
"",
tab_depth),
quoted(name));
} catch (...) {}
try {
const auto name = object->GetRTTI() ? object->GetRTTI()->GetName() : ""sv;
if (!name.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}RTTIName"sv,
"",
tab_depth),
quoted(name));
} catch (...) {}
}
};
template <class T = RE::TESForm>
class TESForm
{
public:
using value_type = T;
static void filter(
filter_results& a_results,
const void* a_ptr, int tab_depth = 0) noexcept
{
const auto form = static_cast<const value_type*>(a_ptr);
try {
const auto file = form->GetDescriptionOwnerFile();
const auto filename = file ? file->GetFilename() : ""sv;
if (!filename.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}File"sv,
""sv,
tab_depth),
quoted(filename));
} catch (...) {}
try {
auto sourcefiles = form->sourceFiles.array;
if (sourcefiles && sourcefiles->size() > unsigned(1)) {
std::string filesString = "";
for (auto index = unsigned(0); index < sourcefiles->size(); index++) {
auto sourcefile = sourcefiles->data()[index];
filesString = filesString.empty() ? fmt::format("{}"sv,
sourcefile->GetFilename().data()) :
fmt::format("{} -> {}"sv,
filesString, sourcefile->GetFilename().data());
}
a_results.emplace_back(
fmt::format(
"{:\t>{}}Modified by"sv,
"",
tab_depth),
filesString);
}
} catch (...) {}
try {
const auto formFlags = form->GetFormFlags();
a_results.emplace_back(
fmt::format(
"{:\t>{}}Flags"sv,
""sv,
tab_depth),
fmt::format(
"0x{:08X}"sv,
formFlags));
} catch (...) {}
try {
const auto name = form->GetObjectTypeName();
if (name && name[0])
a_results.emplace_back(
fmt::format(
"{:\t>{}}Name"sv,
"",
tab_depth),
quoted(name));
} catch (...) {}
try {
const auto editorID = form->GetFormEditorID();
if (editorID && editorID[0])
a_results.emplace_back(
fmt::format(
"{:\t>{}}EditorID"sv,
""sv,
tab_depth),
quoted(editorID));
} catch (...) {}
try {
const auto formID = form->GetFormID();
a_results.emplace_back(
fmt::format(
"{:\t>{}}FormID"sv,
""sv,
tab_depth),
fmt::format(
"0x{:08X}"sv,
formID));
} catch (...) {}
try {
const auto formType = form->GetFormType();
const auto formTypeName = magic_enum::enum_name(formType);
if (!formTypeName.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}FormType"sv,
"",
tab_depth),
fmt::format(
"{} ({:02})"sv,
formTypeName, std::to_underlying(formType)));
} catch (...) {}
}
};
class TESFullName
{
public:
using value_type = RE::TESFullName;
static void filter(
filter_results& a_results,
const void* a_ptr, int tab_depth = 0) noexcept
{
const auto object = static_cast<const value_type*>(a_ptr);
if (!object)
return;
try {
const auto name = object->GetFullName();
if (name && name[0])
a_results.emplace_back(
fmt::format(
"{:\t>{}}GetFullName"sv,
"",
tab_depth),
quoted(name));
} catch (...) {}
}
};
class TESObjectREFR
{
public:
using value_type = RE::TESObjectREFR;
static void filter(
filter_results& a_results,
const void* a_ptr, int tab_depth = 0) noexcept
{
const auto ref = static_cast<const value_type*>(a_ptr);
try {
const auto objRef = ref->data.objectReference;
if (objRef) {
filter_results xResults;
TESForm<RE::TESForm>::filter(xResults, objRef);
if (!xResults.empty()) {
a_results.emplace_back(
fmt::format(
"{:\t>{}}Object Reference"sv,
"",
tab_depth),
"");
for (auto& [key, value] : xResults) {
a_results.emplace_back(
fmt::format(
"{:\t>{}}{}"sv,
"",
tab_depth,
key),
std::move(value));
}
}
} else {
a_results.emplace_back(
fmt::format(
"{:\t>{}}Object Reference"sv,
""sv,
tab_depth),
"None"sv);
}
} catch (...) {}
}
};
class BSShaderProperty
{
public:
using value_type = RE::BSShaderProperty;
static void filter(
filter_results& a_results,
const void* a_ptr, int tab_depth = 0) noexcept
{
const auto form = static_cast<const value_type*>(a_ptr);
try {
const auto formFlags = form->flags;
a_results.emplace_back(
fmt::format(
fmt::runtime("{:\t>{}}Flags"),
""sv,
tab_depth),
fmt::format(
fmt::runtime("0x{:08X}"),
formFlags.underlying()));
} catch (...) {}
try {
const auto name = form->name.c_str();
if (name && name[0])
a_results.emplace_back(
fmt::format(
fmt::runtime("{:\t>{}}Name"),
""sv,
tab_depth),
quoted(name));
} catch (...) {}
try {
const auto rttiname = form->GetRTTI() ? form->GetRTTI()->GetName() : ""sv;
if (!rttiname.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}RTTIName"sv,
""sv,
tab_depth),
quoted(rttiname));
} catch (...) {}
}
};
class NiAVObject
{
public:
using value_type = RE::NiAVObject;
static void filter(
filter_results& a_results,
const void* a_ptr, int tab_depth = 0) noexcept
{
const auto object = static_cast<const value_type*>(a_ptr);
if (!object)
return;
try {
const auto name = object ? object->name.c_str() : ""sv;
if (!name.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}Name"sv,
""sv,
tab_depth),
quoted(name));
} catch (...) {}
try {
const auto name = object->GetRTTI() ? object->GetRTTI()->GetName() : ""sv;
if (!name.empty())
a_results.emplace_back(
fmt::format(
"{:\t>{}}RTTIName"sv,
""sv,
tab_depth),
quoted(name));
} catch (...) {}
try {
const auto flags = object->GetFlags();
a_results.emplace_back(
fmt::format(
"{:\t>{}}Flags"sv,
""sv,
tab_depth),
fmt::format(
"{0:x}"sv,
flags));
} catch (...) {}
try {
const auto objectRefr = RE::TESObjectREFR::FindReferenceFor3D((RE::NiAVObject*)a_ptr);
if (objectRefr) {
a_results.emplace_back(
fmt::format(
"{:\t>{}}Checking TESObjectREFR"sv,
"",
tab_depth),
""sv);
TESObjectREFR::filter(a_results, objectRefr, tab_depth + 1);
}
} catch (...) {}
try {
const auto parent = object->parent;
if (parent) {
a_results.emplace_back(
fmt::format(
"{:\t>{}}Checking Parent"sv,
""sv,
tab_depth),
""sv);
filter(a_results, parent, tab_depth + 1);
}
} catch (...) {}
}
};
class TESQuest
{
public:
using value_type = RE::TESQuest;
static void filter(
filter_results& a_results,
const void* a_ptr, int tab_depth = 0) noexcept
{
const auto object = static_cast<const value_type*>(a_ptr);
if (!object)
return;
try {
a_results.emplace_back(
fmt::format(
fmt::runtime("{:\t>{}}Already Run Quest"),
"",
tab_depth),
fmt::format(
"{}",
object->alreadyRun));
a_results.emplace_back(
fmt::format(
fmt::runtime("{:\t>{}}Current Stage"),
"",
tab_depth),
fmt::format(
"{}",
object->currentStage));
} catch (...) {}
};
};
class ExtraTextDisplayData
{
public:
using value_type = RE::ExtraTextDisplayData;
static void filter(
filter_results& a_results,
const void* a_ptr, int tab_depth = 0) noexcept
{
const auto object = static_cast<const value_type*>(a_ptr);
try {
const auto name = object->displayName.c_str();
if (name && name[0])
a_results.emplace_back(
fmt::format(
"{:\t>{}}Display Name"sv,
"",
tab_depth),
quoted(name));
} catch (...) {}
try {
const auto& displayNameText = object->displayNameText;
if (displayNameText)
TESForm<RE::BGSMessage>::filter(a_results, displayNameText, tab_depth + 1);
} catch (...) {}
try {
const auto quest = object->ownerQuest;
if (quest) {
a_results.emplace_back(
fmt::format(
"{:\t>{}}Owner Quest"sv,
""sv,
tab_depth),
""sv);
TESQuest::filter(a_results, quest, tab_depth + 1);
}
} catch (...) {}
};
};
// Code from Nightfallstorm
class CodeTasklet
{
public:
using value_type = RE::BSScript::Internal::CodeTasklet;
static void filter(
filter_results& a_results,
const void* a_ptr, int tab_depth = 0) noexcept
{
const auto object = static_cast<const value_type*>(a_ptr);
const auto& handlePolicy = RE::BSScript::Internal::VirtualMachine::GetSingleton()->handlePolicy;
const auto datahandler = RE::TESDataHandler::GetSingleton();
try {
auto currentStackFrame = object->stack->top; // get stack from BSScript::Internal::CodeTasklet (or get stack directly if it's a stack object
std::string stackTrace = "\n";
std::map<std::string, bool> objectReferences;
while (currentStackFrame) {
auto function = currentStackFrame->owningFunction;
auto functionObjecTypeName = function.get()->GetObjectTypeName();
auto functionName = function.get()->GetName();
auto objectInstanceString = RE::BSFixedString("None");
auto objectRef = currentStackFrame->self;
if (objectRef.GetType().IsObject()) {
auto objectHandle = std::size_t(objectRef.GetType().GetObjectTypeInfo()->data);
handlePolicy->ConvertHandleToString(objectHandle, objectInstanceString);
const auto handleString = std::string{ objectInstanceString };
const auto paranStart = handleString.find("(");
const auto paranEnd = handleString.rfind(")");
const auto formIDString = (paranStart != std::string::npos && paranEnd != std::string::npos && paranStart <= paranEnd) ? handleString.substr(paranStart + 1, paranEnd - 1) : "";
if (!formIDString.empty())
objectReferences.emplace(formIDString, true);
}
auto sourceFileName = function->GetSourceFilename();
auto traceFormatString = "{:\t>{}}[{}].{}.{}() - \"{}\" Line {}\n"; // Same format in Papyrus logs
std::string lineTrace = "";
if (function.get()->GetIsNative()) {
lineTrace = fmt::format(fmt::runtime(traceFormatString), "", tab_depth, objectInstanceString, functionObjecTypeName, functionName, sourceFileName, "?"sv);
} else {
std::uint32_t lineNumber;
function.get()->TranslateIPToLineNumber(currentStackFrame->ip, lineNumber);
lineTrace = fmt::format(fmt::runtime(traceFormatString), "", tab_depth, objectInstanceString, functionObjecTypeName, functionName, sourceFileName, std::to_string(lineNumber));
}
stackTrace = stackTrace + lineTrace;
currentStackFrame = currentStackFrame->previousFrame;
}
a_results.emplace_back(
fmt::format(
"{:\t>{}}Stack Trace"sv,
"",
tab_depth),
stackTrace);
for (auto& objectReference : objectReferences) {
const auto objectString = objectReference.first;
const auto modIndex = (std::uint8_t)std::stoi(objectString.substr(0, 2), nullptr, 16);
const auto form = (std::uint8_t)std::stoi(objectString.substr(3, objectString.size()), nullptr, 16);
const auto target = datahandler->LookupForm(form, datahandler->LookupLoadedModByIndex(modIndex)->GetFilename());
if (target)
TESForm<RE::TESForm>::filter(a_results, target, tab_depth + 1);
}
} catch (...) {}
};
};
}
namespace Crash::Introspection
{
[[nodiscard]] const Modules::Module* get_module_for_pointer(
const void* a_ptr,
std::span<const module_pointer> a_modules) noexcept
{
const auto it = std::lower_bound(
a_modules.rbegin(),
a_modules.rend(),
reinterpret_cast<std::uintptr_t>(a_ptr),
[](auto&& a_lhs, auto&& a_rhs) noexcept {
return a_lhs->address() >= a_rhs;
});
return it != a_modules.rend() && (*it)->in_range(a_ptr) ? it->get() : nullptr;
}
namespace detail
{
class Integer
{
public:
Integer(std::size_t a_value) noexcept :
_value(a_value),
name_string(a_value >> 63 ?
fmt::format(fmt::runtime("(size_t) [uint: {} int: {}]"s), _value, static_cast<std::make_signed_t<size_t>>(_value)) :
fmt::format(fmt::runtime("(size_t) [{}]"s), _value))
{
}
[[nodiscard]] std::string name() const { return name_string; }
private:
const std::size_t _value;
const std::string name_string;
};
class Pointer
{
public:
Pointer() noexcept = default;
Pointer(const void* a_ptr, std::span<const module_pointer> a_modules) noexcept :
_module(get_module_for_pointer(a_ptr, a_modules))
{
if (_module) {
_ptr = a_ptr;
}
}
[[nodiscard]] std::string name() const
{
if (_module) {
const auto address = reinterpret_cast<std::uintptr_t>(_ptr);
const auto pdbDetails = Crash::PDB::pdb_details(_module->path(), address - _module->address());
const auto assembly = _module->assembly((const void*)address);
if (!pdbDetails.empty())
return fmt::format(
"(void* -> {}+{:07X}\t{} | {})"sv,
_module->name(),
address - _module->address(),
assembly,
pdbDetails);
return fmt::format(
"(void* -> {}+{:07X}\t{})"sv,
_module->name(),
address - _module->address(),
assembly);
} else {
return "(void*)"s;
}
}
private:
const Modules::Module* _module{ nullptr };
const void* _ptr{ nullptr };
};
class Polymorphic
{
public:
explicit Polymorphic(std::string_view a_mangled) noexcept :
_mangled{ a_mangled }
{
// NOLINTNEXTLINE(readability-simplify-subscript-expr)
assert(_mangled.size() > 1 && _mangled.data()[_mangled.size()] == '\0');
}
[[nodiscard]] std::string name() const
{
const auto demangle = [](const char* a_in, char* a_out, std::uint32_t a_size) {
static std::mutex m;
std::lock_guard l{ m };
return WinAPI::UnDecorateSymbolName(
a_in,
a_out,
a_size,
(WinAPI::UNDNAME_NO_MS_KEYWORDS) |
(WinAPI::UNDNAME_NO_FUNCTION_RETURNS) |
(WinAPI::UNDNAME_NO_ALLOCATION_MODEL) |
(WinAPI::UNDNAME_NO_ALLOCATION_LANGUAGE) |
(WinAPI::UNDNAME_NO_THISTYPE) |
(WinAPI::UNDNAME_NO_ACCESS_SPECIFIERS) |
(WinAPI::UNDNAME_NO_THROW_SIGNATURES) |
(WinAPI::UNDNAME_NO_RETURN_UDT_MODEL) |
(WinAPI::UNDNAME_NAME_ONLY) |
(WinAPI::UNDNAME_NO_ARGUMENTS) |
static_cast<std::uint32_t>(0x8000)); // Disable enum/class/struct/union prefix
};
std::array<char, 0x1000> buf{ '\0' };
const auto len = demangle(
_mangled.data() + 1,
buf.data(),
static_cast<std::uint32_t>(buf.size()));
if (len != 0) {
return fmt::format(
"({}*)"sv,
std::string_view{ buf.data(), len });
} else {
return "(ERROR)"s;
}
}
private:
std::string_view _mangled;
};
class F4Polymorphic
{
public:
F4Polymorphic(
std::string_view a_mangled,
const RE::RTTI::CompleteObjectLocator* a_col,
const void* a_ptr) noexcept :
_poly{ a_mangled },
_col{ a_col },
_ptr{ a_ptr }
{
assert(_col != nullptr);
assert(_ptr != nullptr);
}
[[nodiscard]] std::string name() const
{
auto result = _poly.name();
F4::filter_results xInfo;
const auto moduleBase = REL::Module::get().base();
const auto hierarchy = _col->classDescriptor.get();
const std::span bases(
reinterpret_cast<std::uint32_t*>(hierarchy->baseClassArray.offset() + moduleBase),
hierarchy->numBaseClasses);
for (const auto rva : bases) {
const auto base = reinterpret_cast<RE::RTTI::BaseClassDescriptor*>(rva + moduleBase);
const auto it = FILTERS.find(base->typeDescriptor->mangled_name());
if (it != FILTERS.end()) {
const auto root = stl::adjust_pointer<void>(_ptr, -static_cast<std::ptrdiff_t>(_col->offset));
const auto target = stl::adjust_pointer<void>(root, static_cast<std::ptrdiff_t>(base->pmd.mDisp));
it->second(xInfo, target, 0);
}
logger::info("Found unhandled type:\t{}\t{}"sv, result, base->typeDescriptor->mangled_name());
}
if (!xInfo.empty()) {
for (const auto& [key, value] : xInfo) {
result += fmt::format(
"\n\t\t{}: {}"sv,
key,
value);
}
}
return result;
}
private:
static constexpr auto FILTERS = frozen::make_map({
std::make_pair(".?AULooseFileStreamBase@?A0xaf4cad8a@BSResource@@"sv, F4::BSResource::LooseFileStreamBase::filter),
std::make_pair(".?AVBSShaderProperty@@"sv, F4::BSShaderProperty::filter),
std::make_pair(".?AVCodeTasklet@Internal@BSScript@@"sv, F4::CodeTasklet::filter),
std::make_pair(".?AVCharacter@@"sv, F4::TESForm<RE::PlayerCharacter>::filter),
std::make_pair(".?AVExtraTextDisplayData@@"sv, F4::ExtraTextDisplayData::filter),
std::make_pair(".?AVNativeFunctionBase@NF_util@BSScript@@"sv, F4::BSScript::NF_util::NativeFunctionBase::filter),
std::make_pair(".?AVNiAVObject@@"sv, F4::NiAVObject::filter),
std::make_pair(".?AVNiObjectNET@@"sv, F4::NiObjectNET::filter),
std::make_pair(".?AVNiStream@@"sv, F4::NiStream::filter),
std::make_pair(".?AVNiTexture@@"sv, F4::NiTexture::filter),
std::make_pair(".?AVObjectTypeInfo@BSScript@@"sv, F4::BSScript::ObjectTypeInfo::filter),
std::make_pair(".?AVPlayerCharacter@@"sv, F4::TESForm<RE::PlayerCharacter>::filter),
std::make_pair(".?AVTESFaction@@"sv, F4::TESForm<RE::TESFaction>::filter),
std::make_pair(".?AVTESForm@@"sv, F4::TESForm<RE::TESForm>::filter),
std::make_pair(".?AVTESFullName@@"sv, F4::TESFullName::filter),
std::make_pair(".?AVTESNPC@@"sv, F4::TESForm<RE::TESNPC>::filter),
std::make_pair(".?AVTESObjectCELL@@"sv, F4::TESForm<RE::TESObjectCELL>::filter),
std::make_pair(".?AVTESObjectREFR@@"sv, F4::TESObjectREFR::filter),
std::make_pair(".?AVTESQuest@@"sv, F4::TESQuest::filter),
});
Polymorphic _poly;
const RE::RTTI::CompleteObjectLocator* _col{ nullptr };
const void* _ptr{ nullptr };
};
class String
{
public:
String(std::string_view a_str) noexcept :
_str(a_str)
{}
[[nodiscard]] std::string name() const
{
return fmt::format("(char*) \"{}\""sv, _str);
}
private:
std::string_view _str;
};
using analysis_result = std::variant<
Integer,
Pointer,
Polymorphic,
F4Polymorphic,
String>;
template <class T, class... Args>
[[nodiscard]] analysis_result make_result(Args&&... a_args) noexcept(
std::is_nothrow_constructible_v<T, Args...>)
{
return analysis_result(std::in_place_type_t<T>{}, std::forward<Args>(a_args)...);
}
[[nodiscard]] auto analyze_polymorphic(
void* a_ptr,
std::span<const module_pointer> a_modules) noexcept
-> std::optional<analysis_result>
{
try {
const auto vtable = *reinterpret_cast<void**>(a_ptr);
const auto mod = get_module_for_pointer(vtable, a_modules);
if (!mod || !mod->in_rdata_range(vtable)) {
return std::nullopt;
}
const auto col =
*reinterpret_cast<RE::RTTI::CompleteObjectLocator**>(
reinterpret_cast<std::size_t*>(vtable) - 1);
if (mod != get_module_for_pointer(col, a_modules) || !mod->in_rdata_range(col)) {
return std::nullopt;
}
const auto typeDesc =
reinterpret_cast<RE::RTTI::TypeDescriptor*>(
mod->address() + col->typeDescriptor.offset());
if (mod != get_module_for_pointer(typeDesc, a_modules) || !mod->in_data_range(typeDesc)) {
return std::nullopt;
}
if (*reinterpret_cast<const void**>(typeDesc) != mod->type_info()) {
return std::nullopt;
}
if (_stricmp(mod->name().data(), util::module_name().c_str()) == 0) {
return make_result<F4Polymorphic>(typeDesc->mangled_name(), col, a_ptr);
} else {
return make_result<Polymorphic>(typeDesc->mangled_name());
}
} catch (...) {
return std::nullopt;
}
}
[[nodiscard]] auto analyze_string(void* a_ptr) noexcept
-> std::optional<analysis_result>
{
try {
const auto printable = [](char a_ch) noexcept {
if (' ' <= a_ch && a_ch <= '~') {