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minoki / LunarML Public

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The Standard ML compiler that produces Lua/JavaScript

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MIT license
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minoki/LunarML

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  * README
  * MIT license

LunarML

 

The Standard ML compiler that produces Lua/JavaScript.

The documentation is available at https://lunarml.readthedocs.io/en/
latest/.

Trying pre-built binaries

 

Docker image is available.

$ docker pull ghcr.io/minoki/lunarml:latest
$ docker run --rm --platform linux/amd64 -v "$(pwd)":/work -w /work ghcr.io/minoki/lunarml:latest lunarml compile example/hello.sml
$ lua example/hello.lua
Hello world!

In case you do not want to use Docker, there are precompiled scripts
available in the tarball. You can use install-precompiled-lua target
to install lunarml.lua which can be run with Lua 5.3/5.4 and
LuaFileSystem.

$ make install-precompiled-lua PREFIX=/opt/lunarml
$ export PATH=/opt/lunarml/bin:$PATH
$ lunarml compile example/hello.sml

You can use install-precompiled-node target to install lunarml.mjs to
be run with Node.js.

$ make install-precompiled-node PREFIX=/opt/lunarml
$ export PATH=/opt/lunarml/bin:$PATH
$ lunarml compile example/hello.sml

Warning: Script-compiled LunarML is slow. Use native binary for
serious use.

Building and Installing

 

You need a recent version of MLton to build the executable, and Lua
5.3+ or recent Node.js to run the compiled script.

$ make
$ make test-lua
$ make test-lua-continuations
$ make test-luajit
$ make test-nodejs
$ make test-nodejs-cps
$ bin/lunarml compile example/hello.sml
$ lua example/hello.lua
Hello world!

You can install the built binary with make install:

$ make install PREFIX=/opt/lunarml
$ export PATH="/opt/lunarml/bin:$PATH"
$ lunarml compile example/hello.sml

Alternatively, you can use Docker to build and run LunarML.

$ docker build --platform linux/amd64 -f package/docker/Dockerfile -t lunarml:0.1.0 .
$ docker run --rm -v "$(pwd)":/work -w /work --platform linux/amd64 lunarml:0.1.0 lunarml compile example/hello.sml
$ lua example/hello.lua
Hello world!

Usage

 

lunarml compile [options] input.(sml|mlb)

Subcommands:

  * compile: Compile a program.
  * help: Show help.
  * version: Show version information.

Targets:

  * Lua
      + --lua (default): Targets Lua 5.3+.
      + --lua-continuations: Targets Lua 5.3+. Supports one-shot
        delimited continuations. Also, supports deeply nested handle.
      + --luajit: Targets LuaJIT.
  * JavaScript (ES2020+)
      + --nodejs: Produces a JavaScript program for Node.js. The
        default extension is .mjs.
      + --nodejs-cps: Produces a JavaScript program for Node.js (CPS
        mode; supports delimited continuations). The default
        extension is .mjs.

Output type:

  * --exe (default): Produces Lua/JavaScript program.
  * --lib: Produces a Lua/JavaScript module.

Features

 

  * Full SML '97 language, including signatures and functors
      + Note that some features conform to Successor ML rather than
        SML '97.
  * Successor ML features
  * Other language extensions
  * A subset of SML Basis Library
  * ML Basis system for multi-file project
  * Interface to Lua
  * Interface to JavaScript
  * Delimited continuations
  * Other libraries

About

The Standard ML compiler that produces Lua/JavaScript

Topics

lua transpiler standard-ml

Resources

Readme

License

MIT license
Activity

Stars

328 stars

Watchers

9 watching

Forks

10 forks
Report repository

Releases 1

 
LunarML v0.1.0 Latest
Dec 17, 2023

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Packages 1

 

Contributors 3

  * @minoki minoki arata, mizuki
  * @FrankRuben FrankRuben Frank Ruben
  * @toastal toastal

Languages

  * Standard ML 96.5%
  * Lua 2.0%
  * JavaScript 0.6%
  * Haskell 0.5%
  * Makefile 0.4%
  * Shell 0.0%

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