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support for nested lua handlers

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This commit is contained in:
20dka 2024-08-28 03:21:12 +02:00
parent 45bb6ca6f3
commit f775678e2e
1 changed files with 23 additions and 8 deletions
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29
src/TLuaEngine.cpp
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@ -40,6 +40,16 @@ TLuaEngine* LuaAPI::MP::Engine;
static sol::protected_function AddTraceback(sol::state_view StateView, sol::protected_function RawFn);
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);
@ -494,9 +504,11 @@ sol::table TLuaEngine::StateThreadData::Lua_TriggerGlobalEvent(const std::string
sol::variadic_results LocalArgs = JsonStringToArray(Str);
for (const auto& Handler : MyHandlers) {
auto Fn = mStateView[Handler];
auto Res = GetLuaHandler(mStateView, Handler, EventName);
if (Res.has_value()) {
sol::function Fn = Res.value();
Fn = AddTraceback(mStateView, Fn);
if (Fn.valid()) {
auto LuaResult = Fn(LocalArgs);
auto Result = std::make_shared<TLuaResult>();
if (LuaResult.valid()) {
@ -548,8 +560,9 @@ 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 Fn = mStateView[Handler];
if (Fn.valid() && Fn.get_type() == sol::type::function) {
auto Res = GetLuaHandler(mStateView, Handler, EventName);
if (Res.has_value()) {
sol::function Fn = Res.value();
auto FnRet = Fn(EventArgs);
if (FnRet.valid()) {
Result.set(i, FnRet);
@ -1135,8 +1148,10 @@ void TLuaEngine::StateThreadData::operator()() {
// TODO: Use TheQueuedFunction.EventName for errors, warnings, etc
Result->StateId = mStateId;
sol::state_view StateView(mState);
auto RawFn = StateView[FnName];
if (RawFn.valid() && RawFn.get_type() == sol::type::function) {
auto Res = GetLuaHandler(StateView, FnName, TheQueuedFunction.EventName);
if (Res.has_value()) {
sol::function Fn = Res.value();
std::vector<sol::object> LuaArgs;
for (const auto& Arg : Args) {
if (Arg.valueless_by_exception()) {
@ -1171,7 +1186,7 @@ void TLuaEngine::StateThreadData::operator()() {
break;
}
}
auto Fn = AddTraceback(StateView, RawFn);
Fn = AddTraceback(StateView, Fn);
auto Res = Fn(sol::as_args(LuaArgs));
if (Res.valid()) {
Result->Error = false;