| 9 | module.exports = rustify |
| 10 | |
| 11 | function rustify (filename, code, outdir, done) { |
| 12 | mkdirp(outdir, function (err) { |
| 13 | if (err) return done(err) |
| 14 | var base = path.basename(filename).replace(path.extname(filename), '') |
| 15 | |
| 16 | var stdout = '' |
| 17 | var stderr = '' |
| 18 | |
| 19 | var rustc = spawn('rustc', [ |
| 20 | '+nightly', |
| 21 | '-O', |
| 22 | '--target', 'wasm32-unknown-unknown', filename, |
| 23 | '--crate-type=cdylib', |
| 24 | '--out-dir', cachedir |
| 25 | ]) |
| 26 | |
| 27 | rustc.stdout.on('data', (data) => (stdout += data)) |
| 28 | rustc.stderr.on('data', (data) => (stdout += data)) |
| 29 | rustc.on('error', (err) => done(err)) |
| 30 | rustc.on('close', function (code) { |
| 31 | if (code !== 0) return done(new Error(`process rustc exited with with code ${code}, stdout: ${stdout}, stderr: ${stderr}`)) |
| 32 | var src = path.join(cachedir, base + '.wasm') |
| 33 | var dest = path.join(cachedir, base + '.min.wasm') |
| 34 | |
| 35 | var wasmGc = spawn('wasm-gc', [ src, dest ]) |
| 36 | wasmGc.stdout.on('data', (data) => (stdout += data)) |
| 37 | wasmGc.stderr.on('data', (data) => (stdout += data)) |
| 38 | wasmGc.on('error', (err) => done(err)) |
| 39 | wasmGc.on('close', function (code) { |
| 40 | if (code !== 0) return done(new Error(`process wasm-gc exited with with code ${code}, stdout: ${stdout}, stderr: ${stderr}`)) |
| 41 | fs.readFile(dest, function (err, buf) { |
| 42 | if (err) return done(err) |
| 43 | done(null, buf) |
| 44 | }) |
| 45 | }) |
| 46 | }) |
| 47 | }) |
| 48 | } |