0000duck / csharp.lua

The C# to Lua compiler

CSharp.lua

The C# to Lua compiler.

Introduction

CSharp.lua is a C# to Lua compiler. Write C# then run on lua VM.

• Build on Microsoft Roslyn. Support for C# 9.0.

• Highly readable code generation. C# AST ---> Lua AST ---> Lua Code.

• Allowing almost all of the C# language features.

• Provides CoreSystem.lua library, can run away of CLR.

• Self-Compiling, run "./test/self-compiling/self.bat".

• Self-Compiling (linux), run "./make" (if no errors, will prompt for fibbonacci 'N' value and generate fib sequence in lua)

• Used by .NET Core, Ability to across platforms.

Sample

C# code

using System;

namespace HelloLua {
  public static class Program {
    public static void Main() {
      Console.WriteLine("hello lua!");
    }
  }
}

To Lua

-- Generated by CSharp.lua Compiler
local System = System
System.namespace("HelloLua", function (namespace) 
  namespace.class("Program", function (namespace) 
    local Main
    Main = function () 
      System.Console.WriteLine("hello lua!")
    end
    return {
      Main = Main
    }
  end)
end)

Try Live

https://yanghuan.github.io/CSharpLuaWeb/index.html

How to Use

Command Line Parameters

D:\>dotnet CSharp.Lua.Launcher.dll -h
Usage: CSharp.lua [-s srcfolder] [-d dstfolder]
Arguments
-s              : can be a directory where all cs files will be compiled, or a list of files, using ';' or ',' to separate
-d              : destination directory, will put the out lua files

Options
-h              : show the help message and exit
-l              : libraries referenced, use ';' to separate
                  if the librarie is a module, whitch is compield by CSharp.lua with -module arguemnt, the last character needs to be '!' in order to mark  

-m              : meta files, like System.xml, use ';' to separate
-csc            : csc.exe command argumnets, use ' ' or '\t' to separate

-c              : support classic lua version(5.1), default support 5.3
-a              : attributes need to export, use ';' to separate, if ""-a"" only, all attributes whill be exported
-e              : enums need to export, use ';' to separate, if ""-e"" only, all enums will be exported
-ei             : enums is represented by a variable reference rather than a constant value, need to be used with -e
-p              : do not use debug.setmetatable, in some Addon/Plugin environment debug object cannot be used
-metadata       : export all metadata, use @CSharpLua.Metadata annotations for precise control
-module         : the currently compiled assembly needs to be referenced, it's useful for multiple module compiled
-inline-property: inline some single-line properties
-include        : the root directory of the CoreSystem library, adds all the dependencies to a single file named out.lua
-noconcurrent   : close concurrent compile

Make sure that .NET 6.0 is installed. https://dotnet.microsoft.com/download/dotnet/6.0

Download

https://github.com/yanghuan/CSharp.lua/releases

CoreSystem.lua

CoreSystem.lua library that implements most of the .NET Framework core classes, including support for basic type, delegate, generic collection classes & linq. The Converted lua code, need to reference it

Example

• fibonacci, a console program code, print Fibonacci number.

Documentation

https://github.com/yanghuan/CSharp.lua/wiki

License

Apache 2.0 license.

Acknowledgements

• Bridge.NET
• WootzJs
• .NET referencesource
• Resharper

Communication

• Issues
• Mail：[email protected]
• QQ Group: 715350749 (Chinese Only)