binaryen-rb

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A small gem which vendors binaryen releases for easy use from Ruby. It includes the following executables:

Here's a version of the table with the descriptions shortened to a single sentence:

exe	description
wasm-split	Splits a module into a primary and a secondary module, or instruments a module to gather a profile for future splitting.
wasm-ctor-eval	Executes code at compile time.
wasm-merge	Merges multiple wasm files into one.
wasm-reduce	Reduces a wasm file to a smaller one with the same behavior on a given command.
wasm-metadce	Performs dead code elimination (DCE) on a larger space that the wasm module is just a part of.
wasm-shell	Executes .wast files.
wasm-fuzz-types	Fuzzes type construction, canonicalization, and operations.
wasm-fuzz-lattices	Fuzzes lattices for reflexivity, transitivity, and anti-symmetry, and transfer functions for monotonicity.
wasm-emscripten-finalize	Performs Emscripten-specific transforms on .wasm files.
wasm-as	Assembles a .wat (WebAssembly text format) into a .wasm (WebAssembly binary format).
wasm-opt	Reads, writes, and optimizes files.
wasm-dis	Un-assembles a .wasm (WebAssembly binary format) into a .wat (WebAssembly text format).
wasm2js	Transforms .wasm/.wat files to asm.js.

Please note that these are simplified descriptions and may not fully capture the functionality of each command. For a complete understanding, refer to the original descriptions or the respective command's documentation. It also include libinaryen and it's corresponding header files, if you need them.

Installation

Add the following to your Gemfile:

gem "binaryen"

Then run bundle install.

Usage

This library only contains vendored executables, and minimal Ruby code to invoke them. You can see some examples of how to use this gem in the ./examples directory.

• ./examples/wasm_opt.rb - Optimize a WebAssembly module
• ./examples/wasm_split.rb - Strip a WebAssembly module

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/Shopify/binaryen-rb. Signing Shopify's CLA is a mandatory when opening, you will be prompted to do so by a Github action.

Read and follow the guidelines in CONTRIBUTING.md.

Releases

This gem is published to Rubygems.

The procedure to publish a new release version is as follows:

• Update lib/binaryen/version.rb to a valid binaryen release version
• Run bundle install to bump the version of the gem in Gemfile.lock
• Open a pull request, review, and merge
• Review commits since the last release to identify user-facing changes that should be included in the release notes
• Create a relase on GitHub with a version number that matches lib/binaryen/version.rb. Pick the Create new tag option. More on creating releases
• Deploy via Shipit and see your latest version on Rubygems