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Interface Types Tools

This repository serves as a collection of tools useful for prototyping code related to the WebAssembly Interface Types proposal.

None of these tools are Production-ready, or have any stability guarantees whatsoever. The intention for these tools is to serve as a proof of concept, rather than a complete solution.

Things to read

  • List of Tools - Summary of each tool in this repo
  • Example 05 - Walks through the code and output of each step of a specific sample
  • Article: Replacing Embind - A motivating use-case. How we might use these tools (and Interface Types in general) to improve a specific element of the Emscripten toolchain. Something to aim for.
  • Article: LLVM - Some thoughts on how we might generate IT bindings from LLVM directly, at some point in the future.

Other interesting repos

  • em-import - Branch in Emscripten, test of implementing EM_IMPORT, a means of using a custom clang tool to facilitate IT generation that integrates with emcc
  • interface-embind - Examples of the EM_IMPORT mechanism using canvas, with direct comparison to embind
    • js_canvas.js : JS version, 20 ms frame time
    • canvas.cpp : embind version, 200 ms frame time (10x slowdown)
    • import_canvas.cpp: EM_IMPORT version, 22 ms frame time (10% slowdown)
  • web-sys - An EM_IMPORT equivalent to wasm-bindgen's web-sys crate. Tool to generate a bunch of C++ headers with annotations that would generate IT bindings.
  • Dynamic IT Polyfill - An early prototype, mostly a historical footnote. Included for posterity.