diff options
Diffstat (limited to 'src/Bindings')
| -rw-r--r-- | src/Bindings/.gitignore | 1 | ||||
| -rw-r--r-- | src/Bindings/LuaState.h | 629 | ||||
| -rw-r--r-- | src/Bindings/gen_LuaState_Call.lua | 196 | ||||
| -rw-r--r-- | src/Bindings/virtual_method_hooks.lua | 14 |
4 files changed, 218 insertions, 622 deletions
diff --git a/src/Bindings/.gitignore b/src/Bindings/.gitignore index af8aa76fa..0d00dd578 100644 --- a/src/Bindings/.gitignore +++ b/src/Bindings/.gitignore @@ -1 +1,2 @@ lua51.dll +LuaState_Call.inc diff --git a/src/Bindings/LuaState.h b/src/Bindings/LuaState.h index 723193ae7..b1ac3578a 100644 --- a/src/Bindings/LuaState.h +++ b/src/Bindings/LuaState.h @@ -9,10 +9,11 @@ Owned lua_State is created by calling Create() and the cLuaState automatically c Or, lua_State can be attached by calling Attach(), the cLuaState doesn't close such a state Attaching a state will automatically close an owned state. -Calling a Lua function is done by pushing the function, either by PushFunction() or PushFunctionFromRegistry(), -then pushing the arguments (PushString(), PushNumber(), PushUserData() etc.) and finally -executing CallFunction(). cLuaState automatically keeps track of the number of arguments and the name of the -function (for logging purposes), which makes the call less error-prone. +Calling a Lua function is done internally by pushing the function using PushFunction(), then pushing the +arguments and finally executing CallFunction(). cLuaState automatically keeps track of the number of +arguments and the name of the function (for logging purposes). After the call the return values are read from +the stack using GetStackValue(). All of this is wrapped in a templated function overloads cLuaState::Call(), +which is generated automatically by gen_LuaState_Call.lua script file into the LuaState_Call.inc file. Reference management is provided by the cLuaState::cRef class. This is used when you need to hold a reference to any Lua object across several function calls; usually this is used for callbacks. The class is RAII-like, with @@ -228,624 +229,8 @@ public: void GetStackValue(int a_StackPos, eWeather & a_Value); - /** Call any 0-param 0-return Lua function in a single line: */ - template <typename FnT> - bool Call(FnT a_FnName) - { - if (!PushFunction(a_FnName)) - { - return false; - } - return CallFunction(0); - } - - /** Call any 1-param 0-return Lua function in a single line: */ - template< - typename FnT, - typename ArgT1 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1) - { - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - return CallFunction(0); - } - - /** Call any 2-param 0-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2) - { - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - return CallFunction(0); - } - - /** Call any 3-param 0-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3) - { - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - return CallFunction(0); - } - - /** Call any 0-param 1-return Lua function in a single line: */ - template< - typename FnT, typename RetT1 - > - bool Call(FnT a_FnName, const cRet & a_Mark, RetT1 & a_Ret1) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - if (!CallFunction(1)) - { - return false; - } - GetStackValue(-1, a_Ret1); - lua_pop(m_LuaState, 1); - return true; - } - - /** Call any 1-param 1-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename RetT1 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, const cRet & a_Mark, RetT1 & a_Ret1) - { - int InitialTop = lua_gettop(m_LuaState); - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - if (!CallFunction(1)) - { - return false; - } - GetStackValue(-1, a_Ret1); - lua_pop(m_LuaState, 1); - ASSERT(InitialTop == lua_gettop(m_LuaState)); - return true; - } - - /** Call any 2-param 1-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename RetT1 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, const cRet & a_Mark, RetT1 & a_Ret1) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - if (!CallFunction(1)) - { - return false; - } - GetStackValue(-1, a_Ret1); - lua_pop(m_LuaState, 1); - return true; - } - - /** Call any 3-param 1-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, typename RetT1 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, const cRet & a_Mark, RetT1 & a_Ret1) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - if (!CallFunction(1)) - { - return false; - } - GetStackValue(-1, a_Ret1); - lua_pop(m_LuaState, 1); - return true; - } - - /** Call any 4-param 1-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, typename ArgT4, typename RetT1 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, ArgT4 a_Arg4, const cRet & a_Mark, RetT1 & a_Ret1) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - Push(a_Arg4); - if (!CallFunction(1)) - { - return false; - } - GetStackValue(-1, a_Ret1); - lua_pop(m_LuaState, 1); - return true; - } - - /** Call any 5-param 1-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, typename ArgT4, typename ArgT5, typename RetT1 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, ArgT4 a_Arg4, ArgT5 a_Arg5, const cRet & a_Mark, RetT1 & a_Ret1) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - Push(a_Arg4); - Push(a_Arg5); - if (!CallFunction(1)) - { - return false; - } - GetStackValue(-1, a_Ret1); - lua_pop(m_LuaState, 1); - return true; - } - - /** Call any 6-param 1-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, typename ArgT4, typename ArgT5, typename ArgT6, - typename RetT1 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, ArgT4 a_Arg4, ArgT5 a_Arg5, ArgT6 a_Arg6, const cRet & a_Mark, RetT1 & a_Ret1) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - Push(a_Arg4); - Push(a_Arg5); - Push(a_Arg6); - if (!CallFunction(1)) - { - return false; - } - GetStackValue(-1, a_Ret1); - lua_pop(m_LuaState, 1); - return true; - } - - /** Call any 7-param 1-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, typename ArgT4, typename ArgT5, typename ArgT6, - typename ArgT7, typename RetT1 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, ArgT4 a_Arg4, ArgT5 a_Arg5, ArgT6 a_Arg6, ArgT7 a_Arg7, const cRet & a_Mark, RetT1 & a_Ret1) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - Push(a_Arg4); - Push(a_Arg5); - Push(a_Arg6); - Push(a_Arg7); - if (!CallFunction(1)) - { - return false; - } - GetStackValue(-1, a_Ret1); - lua_pop(m_LuaState, 1); - return true; - } - - /** Call any 8-param 1-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, typename ArgT4, typename ArgT5, typename ArgT6, - typename ArgT7, typename ArgT8, typename RetT1 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, ArgT4 a_Arg4, ArgT5 a_Arg5, ArgT6 a_Arg6, ArgT7 a_Arg7, ArgT8 a_Arg8, const cRet & a_Mark, RetT1 & a_Ret1) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - Push(a_Arg4); - Push(a_Arg5); - Push(a_Arg6); - Push(a_Arg7); - Push(a_Arg8); - if (!CallFunction(1)) - { - return false; - } - GetStackValue(-1, a_Ret1); - lua_pop(m_LuaState, 1); - return true; - } - - /** Call any 9-param 1-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, typename ArgT4, typename ArgT5, typename ArgT6, - typename ArgT7, typename ArgT8, typename ArgT9, typename RetT1 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, ArgT4 a_Arg4, ArgT5 a_Arg5, ArgT6 a_Arg6, ArgT7 a_Arg7, ArgT8 a_Arg8, ArgT9 a_Arg9, const cRet & a_Mark, RetT1 & a_Ret1) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - Push(a_Arg4); - Push(a_Arg5); - Push(a_Arg6); - Push(a_Arg7); - Push(a_Arg8); - Push(a_Arg9); - if (!CallFunction(1)) - { - return false; - } - GetStackValue(-1, a_Ret1); - lua_pop(m_LuaState, 1); - return true; - } - - /** Call any 10-param 1-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, typename ArgT4, typename ArgT5, typename ArgT6, - typename ArgT7, typename ArgT8, typename ArgT9, typename ArgT10, typename RetT1 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, ArgT4 a_Arg4, ArgT5 a_Arg5, ArgT6 a_Arg6, ArgT7 a_Arg7, ArgT8 a_Arg8, ArgT9 a_Arg9, ArgT10 a_Arg10, const cRet & a_Mark, RetT1 & a_Ret1) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - Push(a_Arg4); - Push(a_Arg5); - Push(a_Arg6); - Push(a_Arg7); - Push(a_Arg8); - Push(a_Arg9); - Push(a_Arg10); - if (!CallFunction(1)) - { - return false; - } - GetStackValue(-1, a_Ret1); - lua_pop(m_LuaState, 1); - return true; - } - - /** Call any 1-param 2-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename RetT1, typename RetT2 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, const cRet & a_Mark, RetT1 & a_Ret1, RetT2 & a_Ret2) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - if (!CallFunction(2)) - { - return false; - } - GetStackValue(-2, a_Ret1); - GetStackValue(-1, a_Ret2); - lua_pop(m_LuaState, 2); - return true; - } - - /** Call any 2-param 2-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename RetT1, typename RetT2 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, const cRet & a_Mark, RetT1 & a_Ret1, RetT2 & a_Ret2) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - if (!CallFunction(2)) - { - return false; - } - GetStackValue(-2, a_Ret1); - GetStackValue(-1, a_Ret2); - lua_pop(m_LuaState, 2); - return true; - } - - /** Call any 3-param 2-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, - typename RetT1, typename RetT2 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, const cRet & a_Mark, RetT1 & a_Ret1, RetT2 & a_Ret2) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - if (!CallFunction(2)) - { - return false; - } - GetStackValue(-2, a_Ret1); - GetStackValue(-1, a_Ret2); - lua_pop(m_LuaState, 2); - return true; - } - - /** Call any 4-param 2-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, typename ArgT4, - typename RetT1, typename RetT2 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, ArgT4 a_Arg4, const cRet & a_Mark, RetT1 & a_Ret1, RetT2 & a_Ret2) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - Push(a_Arg4); - if (!CallFunction(2)) - { - return false; - } - GetStackValue(-2, a_Ret1); - GetStackValue(-1, a_Ret2); - lua_pop(m_LuaState, 2); - return true; - } - - /** Call any 5-param 2-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, typename ArgT4, typename ArgT5, - typename RetT1, typename RetT2 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, ArgT4 a_Arg4, ArgT5 a_Arg5, const cRet & a_Mark, RetT1 & a_Ret1, RetT2 & a_Ret2) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - Push(a_Arg4); - Push(a_Arg5); - if (!CallFunction(2)) - { - return false; - } - GetStackValue(-2, a_Ret1); - GetStackValue(-1, a_Ret2); - lua_pop(m_LuaState, 2); - return true; - } - - /** Call any 6-param 2-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, typename ArgT4, typename ArgT5, - typename ArgT6, - typename RetT1, typename RetT2 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, ArgT4 a_Arg4, ArgT5 a_Arg5, ArgT6 a_Arg6, const cRet & a_Mark, RetT1 & a_Ret1, RetT2 & a_Ret2) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - Push(a_Arg4); - Push(a_Arg5); - Push(a_Arg6); - if (!CallFunction(2)) - { - return false; - } - GetStackValue(-2, a_Ret1); - GetStackValue(-1, a_Ret2); - lua_pop(m_LuaState, 2); - return true; - } - - /** Call any 7-param 2-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, typename ArgT4, typename ArgT5, - typename ArgT6, typename ArgT7, - typename RetT1, typename RetT2 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, ArgT4 a_Arg4, ArgT5 a_Arg5, ArgT6 a_Arg6, ArgT7 a_Arg7, const cRet & a_Mark, RetT1 & a_Ret1, RetT2 & a_Ret2) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - Push(a_Arg4); - Push(a_Arg5); - Push(a_Arg6); - Push(a_Arg7); - if (!CallFunction(2)) - { - return false; - } - GetStackValue(-2, a_Ret1); - GetStackValue(-1, a_Ret2); - lua_pop(m_LuaState, 2); - return true; - } - - /** Call any 7-param 3-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, typename ArgT4, typename ArgT5, - typename ArgT6, typename ArgT7, - typename RetT1, typename RetT2, typename RetT3 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, ArgT4 a_Arg4, ArgT5 a_Arg5, ArgT6 a_Arg6, ArgT7 a_Arg7, const cRet & a_Mark, RetT1 & a_Ret1, RetT2 & a_Ret2, RetT3 & a_Ret3) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - Push(a_Arg4); - Push(a_Arg5); - Push(a_Arg6); - Push(a_Arg7); - if (!CallFunction(3)) - { - return false; - } - GetStackValue(-3, a_Ret1); - GetStackValue(-2, a_Ret2); - GetStackValue(-1, a_Ret3); - lua_pop(m_LuaState, 3); - return true; - } - - /** Call any 8-param 3-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, typename ArgT4, typename ArgT5, - typename ArgT6, typename ArgT7, typename ArgT8, - typename RetT1, typename RetT2, typename RetT3 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, ArgT4 a_Arg4, ArgT5 a_Arg5, ArgT6 a_Arg6, ArgT7 a_Arg7, ArgT8 a_Arg8, const cRet & a_Mark, RetT1 & a_Ret1, RetT2 & a_Ret2, RetT3 & a_Ret3) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - Push(a_Arg4); - Push(a_Arg5); - Push(a_Arg6); - Push(a_Arg7); - Push(a_Arg8); - if (!CallFunction(3)) - { - return false; - } - GetStackValue(-3, a_Ret1); - GetStackValue(-2, a_Ret2); - GetStackValue(-1, a_Ret3); - lua_pop(m_LuaState, 3); - return true; - } - - /** Call any 9-param 5-return Lua function in a single line: */ - template< - typename FnT, typename ArgT1, typename ArgT2, typename ArgT3, typename ArgT4, typename ArgT5, - typename ArgT6, typename ArgT7, typename ArgT8, typename ArgT9, - typename RetT1, typename RetT2, typename RetT3, typename RetT4, typename RetT5 - > - bool Call(FnT a_FnName, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3, ArgT4 a_Arg4, ArgT5 a_Arg5, ArgT6 a_Arg6, ArgT7 a_Arg7, ArgT8 a_Arg8, ArgT9 a_Arg9, const cRet & a_Mark, RetT1 & a_Ret1, RetT2 & a_Ret2, RetT3 & a_Ret3, RetT4 & a_Ret4, RetT5 & a_Ret5) - { - UNUSED(a_Mark); - if (!PushFunction(a_FnName)) - { - return false; - } - Push(a_Arg1); - Push(a_Arg2); - Push(a_Arg3); - Push(a_Arg4); - Push(a_Arg5); - Push(a_Arg6); - Push(a_Arg7); - Push(a_Arg8); - Push(a_Arg9); - if (!CallFunction(5)) - { - return false; - } - GetStackValue(-5, a_Ret1); - GetStackValue(-4, a_Ret2); - GetStackValue(-3, a_Ret3); - GetStackValue(-2, a_Ret4); - GetStackValue(-1, a_Ret5); - lua_pop(m_LuaState, 5); - return true; - } + // Include the cLuaState::Call() overload implementation that is generated by the gen_LuaState_Call.lua script: + #include "LuaState_Call.inc" /** Returns true if the specified parameters on the stack are of the specified usertable type; also logs warning if not. Used for static functions */ diff --git a/src/Bindings/gen_LuaState_Call.lua b/src/Bindings/gen_LuaState_Call.lua new file mode 100644 index 000000000..fb1797dc0 --- /dev/null +++ b/src/Bindings/gen_LuaState_Call.lua @@ -0,0 +1,196 @@ + +-- gen_LuaState_Call.lua + +-- Generates the cLuaState::Call() function templates that are included from LuaState.h + +--[[ +The cLuaState::Call() family of functions provides a template-based system for calling any Lua function +either by name or by reference with almost any number of parameters and return values. This is done by +providing a number of overloads of the same name with variable number of template-type parameters. To +separate the arguments from the return values, a special type of cLuaState::cRet is used. +--]] + + + + +print("Generating LuaState_Call.inc...") + + + + +-- List of combinations (# params, # returns) to generate: +local Combinations = +{ + -- no return values: + {0, 0}, + {1, 0}, + {2, 0}, + {3, 0}, + {4, 0}, + + -- 1 return value: + {0, 1}, + {1, 1}, + {2, 1}, + {3, 1}, + {4, 1}, + {5, 1}, + {6, 1}, + {7, 1}, + {8, 1}, + {9, 1}, + {10, 1}, + + -- 2 return values: + {0, 2}, + {1, 2}, + {2, 2}, + {3, 2}, + {4, 2}, + {5, 2}, + {6, 2}, + {7, 2}, + {8, 2}, + {9, 2}, + + -- Special combinations: + {7, 3}, + {8, 3}, + {9, 5}, +} + + + + +--- Writes a single overloaded function definition for the specified number of params and returns into f +--[[ +The format for the generated function is this: +/** Call the specified 3-param 2-return Lua function: +Returns true if call succeeded, false if there was an error. */ +template <typename FnT, typename ParamT1, typename ParamT2, typename ParamT3, typename RetT1, typename RetT2> +bool Call(FnT a_Function, ParamT1 a_Param1, ParamT2 a_Param2, ParamT3 a_Param3, const cLuaState::cRet & a_RetMark, RetT1 & a_Ret1, RetT2 & a_Ret2) +{ + UNUSED(a_RetMark); + if (!PushFunction(a_Function)) + { + return false; + } + Push(a_Param1); + Push(a_Param2); + Push(a_Param3); + if (!CallFunction(2)) + { + return false; + } + GetStackValue(-2, a_Ret1); + GetStackValue(-1, a_Ret2); + lua_pop(m_LuaState, 2); + return true; +} +Note especially the negative numbers in GetStackValue() calls. +--]] +local function WriteOverload(f, a_NumParams, a_NumReturns) + -- Write the function doxy-comments: + f:write("/** Call the specified ", a_NumParams, "-param ", a_NumReturns, "-return Lua function:\n") + f:write("Returns true if call succeeded, false if there was an error. */\n") + + -- Write the template <...> line: + f:write("template <typename FnT") + for i = 1, a_NumParams do + f:write(", typename ParamT", i) + end + if (a_NumReturns > 0) then + for i = 1, a_NumReturns do + f:write(", typename RetT", i) + end + end + f:write(">\n") + + -- Write the function signature: + f:write("bool Call(") + f:write("FnT a_Function") + for i = 1, a_NumParams do + f:write(", ParamT", i, " a_Param", i) + end + if (a_NumReturns > 0) then + f:write(", const cLuaState::cRet & a_RetMark") + for i = 1, a_NumReturns do + f:write(", RetT", i, " & a_Ret", i) + end + end + f:write(")\n") + + -- Common code: + f:write("{\n") + if (a_NumReturns > 0) then + f:write("\tUNUSED(a_RetMark);\n") + end + f:write("\tif (!PushFunction(a_Function))\n") + f:write("\t{\n") + f:write("\t\treturn false;\n") + f:write("\t}\n") + + -- Push the params: + for i = 1, a_NumParams do + f:write("\tPush(a_Param", i, ");\n") + end + + -- Call the function: + f:write("\tif (!CallFunction(", a_NumReturns, "))\n") + f:write("\t{\n") + f:write("\t\treturn false;\n") + f:write("\t}\n") + + -- Get the return values: + for i = 1, a_NumReturns do + f:write("\tGetStackValue(", -1 - a_NumReturns + i, ", a_Ret", i, ");\n") + end + + -- Pop the returns off the stack, if needed: + if (a_NumReturns > 0) then + f:write("\tlua_pop(m_LuaState, ", a_NumReturns, ");\n") + end + + -- Everything ok: + f:write("\treturn true;\n") + f:write("}\n") + + -- Separate from the next function: + f:write("\n\n\n\n\n") +end + + + + + +local f = assert(io.open("LuaState_Call.inc", "w")) + +-- Write file header: +f:write([[ +// LuaState_Call.inc + +// This file is auto-generated by gen_LuaState_Call.lua +// Make changes to the generator instead of to this file! + +// This file contains the various overloads for the cLuaState::Call() function +// Each overload handles a different number of parameters / return values +]]) +f:write("\n\n\n\n\n") + +-- Write out a template function for each overload: +for _, combination in ipairs(Combinations) do + WriteOverload(f, combination[1], combination[2]) +end + +-- Close the generated file +f:close() + + + + + +print("LuaState_Call.inc generated") + + + + diff --git a/src/Bindings/virtual_method_hooks.lua b/src/Bindings/virtual_method_hooks.lua index c610d424f..8ad30bf78 100644 --- a/src/Bindings/virtual_method_hooks.lua +++ b/src/Bindings/virtual_method_hooks.lua @@ -3,6 +3,20 @@ local disable_virtual_hooks = true local enable_pure_virtual = true local default_private_access = false + + + + +-- Code generators used by the build +-- Note that these are not exactly needed for the bindings, but rather we +-- misuse tolua's Lua engine to process files for us +dofile("gen_LuaState_Call.lua") + + + + + + local access = {public = 0, protected = 1, private = 2} function preparse_hook(p) |