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import Table from 'tty-table';
import json2csv from 'json-2-csv';
import fs from 'fs';

const MC = "/home/zbraniecki/projects/mozilla-unified";

function readFirefoxLocales() {
  let source = fs.readFileSync(`${MC}/browser/locales/all-locales`, "utf8");
  return source.split("\n").map(loc => {
    if (loc === "") {

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As Gecko is moving toward more Rust code, the cases where Rust and C code interoperate will become more common.

This document is an attempt to ease the learning curve for engineers facing it for the first time. It assumes no prior experience with cross-language C interfaces (called FFI).

It also assumes that Rust code is already built into Gecko. If you need help with that, read Introducing Rust code in Firefox.

What can you transfer across the fence

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Since we are caching resources after first run, to test performance, we need to restart the browser between each try.

Steps:

Parsing, old impl:
1) Apply the patchset from https://bugzilla.mozilla.org/show_bug.cgi?id=1560038 until `fluent-bindgen-rs`. Do not apply `fluent-swap-impls` or you'll lose ability to test JS impl.
2) Copy to memory the test.js
3) Start browser
4) Open browser console (ctrl+shift+j)
5) Paste the snippet and launch it

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[package]
name = "parser"
version = "0.1.0"
authors = ["Jason Orendorff <jason.orendorff@gmail.com>"]
edition = "2018"

[dependencies]
generated_parser = { path = "../generated_parser" }
ast = { path = "../ast" }
bumpalo = "2.6.0"

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rg "&([a-zA-Z][^;]+);" -g '*.xhtml' -g '*.xul' -g '*.inc' -l -c ./browser/ ./toolkit/ ./security/ ./layout/tools/ ./dom/base/ ./widget/ ./docshell/

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import subprocess
import os
import re

exclude_formats = [
    "*.dtd",
    "*.properties",
]

include_formats = [

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use annotate_snippets::display_list::DisplayList;
use annotate_snippets::formatter::DisplayListFormatter;
use annotate_snippets::snippet::{Annotation, AnnotationType, Slice, Snippet, SourceAnnotation};

fn main() {
    let source = r##"
(define test 123)
(+ test "")
()
"##;

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from arewefluentyet import data
import os
import subprocess
import json
from datetime import date, datetime, timedelta

# adjust this path to your local check-out of the gh-pages branch
REPO = "/Users/zbraniecki/projects/fluent/arewefluentyet.com/gh-pages"
MC = "/Users/zbraniecki/projects/mozilla-unified"

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#include <stdio.h>
#include <chrono>
#include <vector>
#include <cstring>

#include "unicode/uloc.h"

    std::vector<std::string> ids;
    ids.push_back("en-US");
    ids.push_back("en-GB");

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{
const {DOMLocalization} = ChromeUtils.import("resource://gre/modules/DOMLocalization.jsm");
let count = 10000;
let l10n = {
  value: `Click on <img data-l10n-name="picture"/> to go to <a data-l10n-name="link"/>the website</a>.`
};
let elems = [];
for(let i = 0; i < count; i++) {
  let elem = document.createElement("description");
  let frag = MozXULElement.parseXULToFragment(`<img src="logo.png" data-l10n-name="picture"/><a href="www.mozilla.org" data-l10n-name="link"></a>`);