Mojo Typescript/JavaScript Bindings

Generated Mojo Typescript bindings are compiled to plain JavaScript bindings for plain JavaScript clients and to Closure-annotated JavaScript for Closure clients.

These bindings are work in progress and are not ready for general use.

Getting started

To use the Typescript bindings to generate JS bindings, set use_typescript_sources to true in your mojom target:

mojom("interfaces") {
  sources = [
    "echo.mojom",
  ]
  use_typescript_sources = true
}

and add enable_typescript_bindings = true to your args.gn.

Tests

There are two sets of tests: compilation and runtime.

• Compilation tests are done by including the //mojo/public/js/ts/bindings/tests gn target, which triggers the Typescript bindings generation and their compilation. This target is included as part of mojo_unittests.

• Runtime tests are done as part of Blink's Web Tests. They are in //third_party/blink/web_tests/mojo/bindings-lite-*.html.