Function concat

packager/src/ModuleGraph/ModuleGraph.js:91–95

(...iterables: Array<Iterable<T>>)

const getModules = (x, cb) => cb(null, x.modules);

function* concat<T>(...iterables: Array<Iterable<T>>): Iterable<T> {
  for (const it of iterables) {
    yield* it;
  }
}

function prelude(optimize) {
  return virtualModule(