Show HN: Another C++ Lua Wrapper

#1

Post by vapourismo » Sat, Jul 04, 2015, 8:22 PM UTC

Show HN: Another C++ Lua Wrapper
github.com

Re: Show HN: Another C++ Lua Wrapper

#2

Post by Doctor_Fegg » Sat, Jul 04, 2015, 9:54 PM UTC

Looks interesting. I've recently released a C++ project that embeds Lua (https://github.com/systemed/tilemaker, a utility to make 'vector tiles' directly from OpenStreetMap data dumps) but installation of Luabind is pretty much the pain point for everyone who's tried it. (bjam? I mean, why?) A header-only library is really tempting.

Re: Show HN: Another C++ Lua Wrapper

#3

Post by vapourismo » Sat, Jul 04, 2015, 10:07 PM UTC

Doctor_Fegg wrote: post #2

Looks interesting. I've recently released a C++ project that embeds Lua ( https://github.com/systemed/tilemaker , a utility to make 'vector tiles' directly from OpenStreetMap data dumps) but installation of Luabind is pretty much the pain point for everyone who's tried it. (bjam? I mean, why?) A header-only library is really tempting.

Hope it works for you - love to hear some additional feedback.

Re: Show HN: Another C++ Lua Wrapper

#4

Post by luizpv9 » Sun, Jul 05, 2015, 1:28 AM UTC

vapourismo wrote: post #3

Doctor_Fegg wrote: post #2

Looks interesting. I've recently released a C++ project that embeds Lua ( https://github.com/systemed/tilemaker , a utility to make 'vector tiles' directly from OpenStreetMap data dumps) but installation of Luabind is pretty much the pain point for everyone who's tried it. (bjam? I mean, why?) A header-only library is really tempting.

Hope it works for you - love to hear some additional feedback.

Seems really well done and well documented. Sorry to ask this without exploring the code myself (!), but there is a check in common.hpp for C++14 compliant compiler. What features of C++14 are you using in this project?

Re: Show HN: Another C++ Lua Wrapper

#5

Post by arkadiyt » Sun, Jul 05, 2015, 2:00 AM UTC

luizpv9 wrote: post #4

vapourismo wrote: post #3

Earlier quoted context omitted.

Hope it works for you - love to hear some additional feedback.

Seems really well done and well documented. Sorry to ask this without exploring the code myself (!), but there is a check in common.hpp for C++14 compliant compiler. What features of C++14 are you using in this project?

Yes, there is a check - it's the very first thing: https://github.com/vapourismo/luwra/blob/master/lib/luwra/co.... Can't speak as to what features of C++14 are being used.

Re: Show HN: Another C++ Lua Wrapper

#6

Post by TillE » Sun, Jul 05, 2015, 2:33 AM UTC

If you've written this, presumably you've found something lacking in the other eight billion Lua/C++ bindings (I agree, they all have major deficiencies, such that Luabind remains my "least bad" choice).

Could you explain exactly what yours does differently?

Re: Show HN: Another C++ Lua Wrapper

#7

Post by moonchrome » Sun, Jul 05, 2015, 3:53 AM UTC

luizpv9 wrote: post #4

vapourismo wrote: post #3

Earlier quoted context omitted.

Hope it works for you - love to hear some additional feedback.

Seems really well done and well documented. Sorry to ask this without exploring the code myself (!), but there is a check in common.hpp for C++14 compliant compiler. What features of C++14 are you using in this project?

From what I can see (quick glance) he uses integer_sequence https://github.com/vapourismo/luwra/blob/56a566dd9e20fc7e3c9...

Re: Show HN: Another C++ Lua Wrapper

#8

Post by dman » Sun, Jul 05, 2015, 4:21 AM UTC

TillE wrote: post #6

If you've written this, presumably you've found something lacking in the other eight billion Lua/C++ bindings (I agree, they all have major deficiencies, such that Luabind remains my "least bad" choice). Could you explain exactly what yours does differently?

Could you elaborate on common deficiencies? What does Luabind get right? What are its shortcomings?

Re: Show HN: Another C++ Lua Wrapper

#9

Post by platform » Sun, Jul 05, 2015, 4:53 AM UTC

TillE wrote: post #6

If you've written this, presumably you've found something lacking in the other eight billion Lua/C++ bindings (I agree, they all have major deficiencies, such that Luabind remains my "least bad" choice). Could you explain exactly what yours does differently?

this wrapper seems to be leveraging the new C++ features to provide type-safe attribute maps, while avoiding dependencies on boost (for example, the other popular wrapper, luabind wrapper depends on boost). This is just from my initial reading.

Re: Show HN: Another C++ Lua Wrapper

#10

Post by pikachu_is_cool » Sun, Jul 05, 2015, 6:44 AM UTC

I'm generally not a fan of these Lua C API wrappers because they tend to add a lot of useless syntactic sugar that makes things more complicated... but yours is pretty good, I like the usertypes feature.