parse: function (code, opts) {

		let options = {
			parse: {},
			compress: false,
			mangle: false,
			output: {
				ast: true,
				code: false
			}
		};
		let result = UglifyJS.minify(code, options);
		if (result.error) {
			let error = result.error;
			error.filename = opts.filename;
			error.toString = function () {
				let str = error.message;
				str += '\n' + opts.filename;
				str += '\n' + code.split(/\r?\n/g)[result.error.line - 1];
				let i = error.col, pad = '';
				while (--i > -1) pad += ' ';
				str += `\n` + pad + '^';
				return str;
			};
			throw error;
		}
		return result.ast;
	},

 function collect_entries(name: string, bundle: Bundle): void {
   for (const mod of bundle.modules) {
     const minified = uglify_es.minify(mod.source, minify_opts)
     if (minified.error != null) {
       const {error: {message, line, col}} = minified
       throw new Error(`${mod.canonical}:${line-1}:${col}: ${message}`)
     } else
       entries.push([name, mod.canonical, mod.is_external, minified.code.length])
   }
 }

/// <reference types="node" />

import { OutputQuoteStyle, minify } from 'uglify-es';

let code: any;

code = {
    "file1.js": "function add(first, second) { return first + second; }",
    "file2.js": "console.log(add(1 + 2, 3 + 4));"
};

minify(code);

code = "function add(first, second) { return first + second; }";
minify(code);

minify(code, {
    output: {
        quote_style: OutputQuoteStyle.AlwaysDouble
    }
});

const output = minify(code, {
    warnings: 'verbose',
    mangle: {
        properties: {
            regex: /reg/
        }
    },
    sourceMap: {
        filename: 'foo.map'