Re: Lua C API can't be used from other languages without C wrappers

["Soni \"They/Them\" L." <fakedme@...>]

On 2018-02-18 12:39 PM, Dirk Laurie wrote:
> 2018-02-18 17:23 GMT+02:00 Soni "They/Them" L. <fakedme@gmail.com>:
>
> > It was recently brought to my attention that the Lua C API is strictly a C
> > API, and not as universal as some ppl claim it to be.[1]
> It works perfectly with Free Pascal too.
>
> http://lua-users.org/wiki/LuaInFreePascal
>
> > More specifically, it's unsafe to directly call this API from any sort of FFI!
> > This includes LuaJIT FFI, Python CFFI, any of the many FFI wrappers for Java, and so on!
> Would not that be more a defect of the FFI than of the Lua API?

What happens if you "pcall(C.lua_error(some_L))" from within LuaJIT? 
does the pcall catch the lua_error? are the results the same between 
windows and linux? etc.

I seriously doubt it's a defect of the FFI. There's only so much an FFI 
can (or should) do, and handling all forms of unwinding, including 
setjmp/longjmp *and* C++ exceptions *and* the OS's exception propagation 
mechanism, is not one of them.

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