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Revert "support for nested lua handlers" (#428)

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Reverts a PR that has been causing sol to crash.

---

By creating this pull request, I understand that code that is AI
generated or otherwise automatically generated may be rejected without
further discussion.
I declare that I fully understand all code I pushed into this PR, and
wrote all this code myself and own the rights to this code.
This commit is contained in:
Tixx 2025-05-05 23:46:11 +02:00 committed by GitHub
commit a0d75c01f0
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1 changed files with 8 additions and 25 deletions
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33
src/TLuaEngine.cpp
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@ -40,18 +40,6 @@ TLuaEngine* LuaAPI::MP::Engine;
static sol::protected_function AddTraceback(sol::state_view StateView, sol::protected_function RawFn);
static std::optional<sol::function> GetLuaHandler(sol::state_view StateView, const std::string Handler, const std::string EventName);
static std::optional<sol::function> GetLuaHandler(sol::state_view StateView, const std::string Handler, const std::string EventName) {
auto Res = StateView.safe_script("return " + Handler, sol::script_pass_on_error);
if (!Res.valid()) {
beammp_errorf("invalid handler for event \"{}\". handler: \"{}\"", EventName, Handler);
} else if (Res.get_type() == sol::type::function) {
return Res.get<sol::function>();
}
return std::nullopt;
}
TLuaEngine::TLuaEngine()
: mResourceServerPath(fs::path(Application::Settings.getAsString(Settings::Key::General_ResourceFolder)) / "Server") {
Application::SetSubsystemStatus("LuaEngine", Application::Status::Starting);
@ -507,11 +495,9 @@ sol::table TLuaEngine::StateThreadData::Lua_TriggerGlobalEvent(const std::string
sol::variadic_results LocalArgs = JsonStringToArray(Str);
for (const auto& Handler : MyHandlers) {
auto Res = GetLuaHandler(mStateView, Handler, EventName);
if (Res.has_value()) {
sol::function Fn = Res.value();
Fn = AddTraceback(mStateView, Fn);
auto Fn = mStateView[Handler];
Fn = AddTraceback(mStateView, Fn);
if (Fn.valid()) {
auto LuaResult = Fn(LocalArgs);
auto Result = std::make_shared<TLuaResult>();
if (LuaResult.valid()) {
@ -563,9 +549,8 @@ sol::table TLuaEngine::StateThreadData::Lua_TriggerLocalEvent(const std::string&
sol::table Result = mStateView.create_table();
int i = 1;
for (const auto& Handler : mEngine->GetEventHandlersForState(EventName, mStateId)) {
auto Res = GetLuaHandler(mStateView, Handler, EventName);
if (Res.has_value()) {
sol::function Fn = Res.value();
auto Fn = mStateView[Handler];
if (Fn.valid() && Fn.get_type() == sol::type::function) {
auto FnRet = Fn(EventArgs);
if (FnRet.valid()) {
Result.set(i, FnRet);
@ -1177,10 +1162,8 @@ void TLuaEngine::StateThreadData::operator()() {
// TODO: Use TheQueuedFunction.EventName for errors, warnings, etc
Result->StateId = mStateId;
sol::state_view StateView(mState);
auto Res = GetLuaHandler(StateView, FnName, TheQueuedFunction.EventName);
if (Res.has_value()) {
sol::function Fn = Res.value();
auto RawFn = StateView[FnName];
if (RawFn.valid() && RawFn.get_type() == sol::type::function) {
std::vector<sol::object> LuaArgs;
for (const auto& Arg : Args) {
if (Arg.valueless_by_exception()) {
@ -1215,7 +1198,7 @@ void TLuaEngine::StateThreadData::operator()() {
break;
}
}
Fn = AddTraceback(StateView, Fn);
auto Fn = AddTraceback(StateView, RawFn);
auto Res = Fn(sol::as_args(LuaArgs));
if (Res.valid()) {
Result->Error = false;