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path: root/indra/llcommon/lua_function.cpp
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2024-02-08Add required helptext parameter to lua_function() macro.Nat Goodspeed
Extend the LuaFunction::Registry map to store helptext as well as the function pointer. Add help text to every existing lua_function() invocation.
2024-02-07Fix lluau::dostring() for return values.Nat Goodspeed
We were calling lua_pcall() in such a way as to discard any values returned by the Lua chunk. Work around Luau's broken lua_tointegerx(), which unlike vanilla Lua's does not report whether the value at the specified index is or is not an integer.
2024-02-07Add machinery to capture result of running a Lua script or snippet.Nat Goodspeed
Add LuaState::expr() that evaluates a Lua snippet and reports back any result (or error) left on the stack. Add LLLUAmanager::runScriptFile() and runScriptLine() overloads that accept a callback with an (int count, LLSD result) signature. The count disambiguates (error, no result, one result, array of results). Also add overloads that accept an existing LuaState instance. Also add waitScriptFile() and waitScriptLine() methods that pause the calling coroutine until the Lua script completes, and return its results. Instead of giving LuaState a description to use for all subsequent checkLua() calls, remove description from its constructor and data members. Move to expr() and checkLua() parameters: we want a description specific to each operation, rather than for the LuaState as a whole. This prepares for persistent LuaState instances. For now, the existing script_finished_fn semantics remain: the callback will be called only when the LuaState is destroyed. This may need to change as we migrate towards longer-lasting LuaState instances. Make lua_function(name) macro append suffixes to the name for both the LuaFunction subclass declaration and the instance declaration. This allows publishing a lua_function() name such as sleep(), which already has a different C++ declaration. Move the Lua sleep() entry point to a standalone lua_function(sleep), instead of a lambda in the body of runScriptFile().
2024-02-06Break out lua_function.h,.cpp and lualistener.h,.cpp.Nat Goodspeed
The intention is to decentralize Luau entry points into our C++ code, permitting a given entry point to be added to the .cpp file that already deals with that class or functional area. Continuing to add every such entry point to llluamanager.cpp doesn't scale well. Extract LuaListener class from llluamanager.cpp to its own header and .cpp file. Extract from llluamanager into lua_function.h (and .cpp) declarations useful for adding a lua_function Luau entry point, e.g.: lua_register() lua_rawlen() lua_tostdstring() lua_pushstdstring() lua_tollsd() lua_pushllsd() LuaPopper lua_function() and LuaFunction class LuaState lua_what lua_stack DebugExit