To make a little personal note here: lua amazes me with every hour spent working with it. Up until now I was just scratching the surface. I was using it only to provide a config file by simply reading a table. Now, after putting it to good use (as scripting engine), my brain is sparking with ideas and ideas :)
Of course, I'm 100% I will re-invent the wheel many times before mastering it. But that's just an ongoing process of learning
On Apr 8, 2011, at 1:16 PM, Sean Conner wrote: It was thus said that the Great C++ RTMP Server once stated:
On Apr 8, 2011, at 12:11 PM, Sean Conner wrote:
Nope. All you can really do is see if the function exists. It's up to
the function itself to check the paramters it gets.
My scenario is the other way around. I let the user define a lua callback
function. I know the if he defines myHandlerForMyCustomEvent function, I
should call it from the C++ when MyCustomEvent is triggered. Now, before
calling it from C/C++, what I would like is to see if, at least, has the
proper number of arguments (if determining the type is not possible).
Otherwise, the user is bound to make mistakes. If C/C++ expects
myHandlerForMyCustomEvent function to have 3 params and the user defines
that function with only 1 parameter, I would like to warn him/her before
continuing:
"Hey, myHandlerForMyCustomEvent function is not defined properly for C/C++
needs! It will definitely not do the job because you missed 2 params"
Unless you parse the submitted Lua script you can't obtain that information. Short of that, all you can do is trust the user to write a function that accepts the proper number of arguments. -spc
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