babylon.js
356 Bytes
#!/usr/bin/env node
/* eslint no-var: 0 */
var babylon = require("..");
var fs = require("fs");
var filename = process.argv[2];
if (!filename) {
console.error("no filename specified");
process.exit(0);
}
var file = fs.readFileSync(filename, "utf8");
var ast = babylon.parse(file);
console.log(JSON.stringify(ast, null, " "));