@grain/binaryen.ml
OCaml bindings for Binaryen.
Last updated 2 days ago by ospencer .
Apache-2.0 · Original npm · Tarball · package.json
$ cnpm install @grain/binaryen.ml 
SYNC missed versions from official npm registry.

Binaryen.ml

Binaryen.ml CI Workflow

OCaml bindings for Binaryen.

Binaryen is a compiler and toolchain infrastructure for WebAssembly. It makes compilation to WebAssembly pretty darn easy.

Here's Binaryen's hello world test in OCaml form:

open Binaryen

let wasm_mod = Module.create ()

(* Create function type for i32 (i32, i32) *)
let params = Type.create [| Type.int32; Type.int32 |]
let results = Type.int32

(* Get arguments 0 and 1, add them *)
let x = Expression.local_get wasm_mod 0 Type.int32
let y = Expression.local_get wasm_mod 1 Type.int32
let add = Expression.binary wasm_mod Op.add_int32 x y

(* Create the add function *)
(* Note: no additional local variables *)
let adder = Function.add_function wasm_mod "adder" params results [||] add

let _ = Module.print wasm_mod
let _ = Module.dispose wasm_mod

Feature Parity

This project aims to provide full feature parity with the Binaryen C API. It's fairly complete, but a few things still need bindings:

  • SIMD instructions
  • Events
  • Atomics
  • Query operations on expressions
  • Query operations on functions

None of these are particularly challenging to create bindings for—they just haven't been written yet. If you need anything that's missing, feel free to open a PR.

Static Linking

If you are planning to create portable binaries for Windows, it will try to find Cygwin/MinGW locations in your PATH. To avoid this, you probably want to add this to your (executable) stanzas:

 (executable
  (name example)
  (public_name example)
  (package example)
+ (flags (:standard -ccopt -- -ccopt -static))
  (modules example)
  (libraries binaryen))

These flags might not work on other operating systems (like MacOS), so you'll probably need to use dune-configurator to vary the flags per platform.

Contributing

After cloning the repository, be sure to initialize the Binaryen submodule:

git submodule update --init

You'll need Node.js and esy to build this project, as well as cmake to build Binaryen.

dune will take care of building Binaryen and compiling the C stubs, so to build the project you'll only need to run:

esy

This will take a while. Once it's done, you can run the tests:

esy test

Current Tags

  • 0.5.0                                ...           latest (2 days ago)

4 Versions

  • 0.5.0                                ...           2 days ago
  • 0.4.0                                ...           2 months ago
  • 0.3.1                                ...           3 months ago
  • 0.3.0                                ...           3 months ago
Maintainers (2)
Downloads
Today 0
This Week 3
This Month 6
Last Day 3
Last Week 3
Last Month 0
Dependencies (4)
Dev Dependencies (3)
Dependents (0)
None

Copyright 2014 - 2016 © taobao.org |