iter-tools-es/impls/$fork/async-fork.js

The iterable toolbox

const {
  asyncIterableCurry
} = require('../../internal/async-iterable.js');

const {
  AsyncExchange
} = require('../../internal/async-fork.js');

function* __asyncFork(source) {
  const exchange = new AsyncExchange(source[Symbol.asyncIterator]());
  const dummyFork = exchange.fork();

  try {
    while (true) yield exchange.fork();
  } finally {
    dummyFork.return();
  }
}

exports.__asyncFork = __asyncFork;
const asyncFork = /*#__PURE__*/asyncIterableCurry(__asyncFork, {
  forceSync: true
});
exports.asyncFork = asyncFork;