The Flow Parser

The Flow Parser is a JavaScript parser written in OCaml. It produces an AST that conforms to SpiderMonkey's Parser API and that mostly matches what esprima produces. The Flow Parser can be compiled to native code or can be compiled to JavaScript using js_of_ocaml.

Building the Flow Parser

Building the Flow Parser requires OCaml. Compiling to JavaScript requires js_of_ocaml >= 2.8.

Initial set up

• Install opam
• opam install js_of_ocaml

Building the OCaml Flow Parser library

make

Compiling the Flow Parser to JavaScript

make js

Tests

The Flow Parser's test suite tests the JavaScript version of the parser, so you will need js_of_ocaml installed. The tests and tools also have some node module dependencies, so you will need to run

Initial set up

• Follow the steps in Building the Flow Parser
• npm install

Running the Tests

make test