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Haxe Lua Bindings (Embed Lua runtime in your Haxe app)

Haxe 100.00%

hxvm-lua's Introduction

Haxe Lua Bindings

Embed the Lua scripting engine into your Haxe application

Supported targets

c++ (tested on macOS and windows)
js (tested on Chrome)
nodejs

Example Usage

// create an instance
var lua = new vm.lua.Lua();

// set global variables
lua.setGlobalVar('square', function(v) return v * v);
lua.setGlobalVar('foo', 2);

// run a script
lua.run('return square(foo)'); // gives you 4

// supply an object as second paramter to run() to set global vars
lua.run('return bar', {bar: 2}); // gives you 2

// run function
lua.run('function add(a, b) \n return a + b \n end'); // first we create a lua function
lua.call('add', [1, 2]); // gives you 3

// destroy when done with the instance
lua.destroy();

Install

Target C++

When targeting C++ we compile the Lua runtime from its C source code.

Install haxelib: linc_lua
Add -lib linc_lua to your haxe build

Target JS

When targeting JS we utilize Fengari, which is the Lua VM written in pure JavaScript.

You can choose to either build a standalone js file for Fengari or require it in your project.

For browser without bundlers

Install haxelib: hxjs-fengari
Git clone https://github.com/fengari-lua/fengari
Run yarn && yarn run build
Add the output file (dist/fengari.js) to your project using a <script> tag in html
Add -lib hxjs-fengari -D fengari_global to your haxe build

For Node.js or browser js with bundlers

Install haxelib: hxjs-fengari
yarn add https://github.com/fengari-lua/fengari
Add -lib hxjs-fengari to your haxe build

TODO

Implement/test coroutines

hxvm-lua's People

Contributors

Stargazers

Watchers

Forkers

sondro bradparks darmie ukyohpq nebulazorua yoshman29-funkinarchive sangohan skuqre shadowmario kiss-lang

hxvm-lua's Issues

[Question] Comparision to linc_luajit

I'm considering switching my project from linc_luajit to hxvm-lua. Are there caveats/known issues with hxvm-lua? It seems it's high level and this is like the JIT... and it also supports javascript.

In short what are the benefits and drawbacks of making the switch?

how do you install it?

idk how to install it because im on mac and idk how to do it please help me

You cannot access the lua package while targeting cpp

I'm getting that error while trying to compile to C++:

src/Client.hx:10: characters 15-22 : You cannot access the lua package while targeting cpp (for lua.Lua)

import vm.lua.Lua;
// src/Client.hx:10
var lua = new lua.Lua();

build file:

-cp src
-lib linc_lua
-lib tink_core
-lib hxvm-lua
-main Client
-cpp build/moos

Getting build errors.

Getting build errors on minimal example following README.md.

Error: Lua.cpp
./src/vm/lua/Lua.cpp(185): error C2679: binary '=': no operator found which takes a right-hand operand of type 'overloaded-function' (or there is no acceptable conversion)
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(443): note: could be 'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(null &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(438): note: or       'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(Dynamic &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(437): note: or       'cpp::Function<int (cpp::Pointer<lua_State>)> cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(const cpp::Function<int (cpp::Pointer<lua_State>)> &)'
./src/vm/lua/Lua.cpp(185): note: while trying to match the argument list '(cpp::Function<int (cpp::Pointer<lua_State>)>, overloaded-function)'
./src/vm/lua/Lua.cpp(189): error C2679: binary '=': no operator found which takes a right-hand operand of type 'overloaded-function' (or there is no acceptable conversion)
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(443): note: could be 'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(null &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(438): note: or       'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(Dynamic &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(437): note: or       'cpp::Function<int (cpp::Pointer<lua_State>)> cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(const cpp::Function<int (cpp::Pointer<lua_State>)> &)'
./src/vm/lua/Lua.cpp(189): note: while trying to match the argument list '(cpp::Function<int (cpp::Pointer<lua_State>)>, overloaded-function)'
./src/vm/lua/Lua.cpp(193): error C2679: binary '=': no operator found which takes a right-hand operand of type 'overloaded-function' (or there is no acceptable conversion)
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(443): note: could be 'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(null &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(438): note: or       'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(Dynamic &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(437): note: or       'cpp::Function<int (cpp::Pointer<lua_State>)> cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(const cpp::Function<int (cpp::Pointer<lua_State>)> &)'
./src/vm/lua/Lua.cpp(193): note: while trying to match the argument list '(cpp::Function<int (cpp::Pointer<lua_State>)>, overloaded-function)'
./src/vm/lua/Lua.cpp(197): error C2679: binary '=': no operator found which takes a right-hand operand of type 'overloaded-function' (or there is no acceptable conversion)
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(443): note: could be 'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(null &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(438): note: or       'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(Dynamic &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(437): note: or       'cpp::Function<int (cpp::Pointer<lua_State>)> cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(const cpp::Function<int (cpp::Pointer<lua_State>)> &)'
./src/vm/lua/Lua.cpp(197): note: while trying to match the argument list '(cpp::Function<int (cpp::Pointer<lua_State>)>, overloaded-function)'
./src/vm/lua/Lua.cpp(201): error C2679: binary '=': no operator found which takes a right-hand operand of type 'overloaded-function' (or there is no acceptable conversion)
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(443): note: could be 'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(null &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(438): note: or       'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(Dynamic &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(437): note: or       'cpp::Function<int (cpp::Pointer<lua_State>)> cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(const cpp::Function<int (cpp::Pointer<lua_State>)> &)'
./src/vm/lua/Lua.cpp(201): note: while trying to match the argument list '(cpp::Function<int (cpp::Pointer<lua_State>)>, overloaded-function)'
./src/vm/lua/Lua.cpp(205): error C2679: binary '=': no operator found which takes a right-hand operand of type 'overloaded-function' (or there is no acceptable conversion)
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(443): note: could be 'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(null &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(438): note: or       'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(Dynamic &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(437): note: or       'cpp::Function<int (cpp::Pointer<lua_State>)> cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(const cpp::Function<int (cpp::Pointer<lua_State>)> &)'
./src/vm/lua/Lua.cpp(205): note: while trying to match the argument list '(cpp::Function<int (cpp::Pointer<lua_State>)>, overloaded-function)'
./src/vm/lua/Lua.cpp(209): error C2679: binary '=': no operator found which takes a right-hand operand of type 'overloaded-function' (or there is no acceptable conversion)
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(443): note: could be 'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(null &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(438): note: or       'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(Dynamic &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(437): note: or       'cpp::Function<int (cpp::Pointer<lua_State>)> cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(const cpp::Function<int (cpp::Pointer<lua_State>)> &)'
./src/vm/lua/Lua.cpp(209): note: while trying to match the argument list '(cpp::Function<int (cpp::Pointer<lua_State>)>, overloaded-function)'
./src/vm/lua/Lua.cpp(213): error C2679: binary '=': no operator found which takes a right-hand operand of type 'overloaded-function' (or there is no acceptable conversion)
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(443): note: could be 'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(null &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(438): note: or       'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(Dynamic &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(437): note: or       'cpp::Function<int (cpp::Pointer<lua_State>)> cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(const cpp::Function<int (cpp::Pointer<lua_State>)> &)'
./src/vm/lua/Lua.cpp(213): note: while trying to match the argument list '(cpp::Function<int (cpp::Pointer<lua_State>)>, overloaded-function)'
./src/vm/lua/Lua.cpp(217): error C2679: binary '=': no operator found which takes a right-hand operand of type 'overloaded-function' (or there is no acceptable conversion)
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(443): note: could be 'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(null &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(438): note: or       'Dynamic cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(Dynamic &)'
C:/HaxeToolkit/haxe/lib/hxcpp/3,4,188/include\cpp/Pointer.h(437): note: or       'cpp::Function<int (cpp::Pointer<lua_State>)> cpp::Function<int (cpp::Pointer<lua_State>)>::operator =(const cpp::Function<int (cpp::Pointer<lua_State>)> &)'
./src/vm/lua/Lua.cpp(217): note: while trying to match the argument list '(cpp::Function<int (cpp::Pointer<lua_State>)>, overloaded-function)'
./src/vm/lua/Lua.cpp(226): error C2664: 'void linc::luaL::requiref(lua_State *,const char *,cpp::Function<int (lua_State *)>,bool)': cannot convert argument 3 from 'cpp::Function<int (cpp::Pointer<lua_State>)>' to 'cpp::Function<int (lua_State *)>'
./src/vm/lua/Lua.cpp(226): note: No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called

 - src/tink/core/NamedWith.cpp
 - src/tink/core/FutureTrigger.cpp
 - src/tink/core/_Future/NestedFuture.cpp
 - src/tink/core/_Lazy/LazyFunc.cpp
 - src/tink/core/_Future/LazyTrigger.cpp
 - src/tink/core/_Lazy/Lazy_Impl_.cpp

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