import VM from 'isolated-vm';

async function main() {
  const isolate = new VM.Isolate({
    // 其他配置项\
    memoryLimit: 4 * 1024 * 1024 * 1024
  });
  const context = isolate.createContextSync();
  const jail = context.global;
  jail.setSync("global", jail.derefInto());
  jail.setSync("log", function(...args) {
    console.log(...args);
  });
  context.evalSync('log("hello world")');
  const hostile = isolate.compileScriptSync(`
	const storage = [];
	const twoMegabytes = 1024 * 1024 * 2;
	while (true) {
		const array = new Uint8Array(twoMegabytes);
		for (let ii = 0; ii < twoMegabytes; ii += 4096) {
			array[ii] = 1; // we have to put something in the array to flush to real memory
		}
		storage.push(array);
		log('I\\'ve wasted '+ (storage.length * 2)+ 'MB');
	}
`);
  hostile.run(context).catch((err) => console.error(err));
}
main().catch(console.error);