iterama/web/concat-async.js

Composable functional (async) iterable helpers

import _defineProperty from "@babel/runtime/helpers/esm/defineProperty";
import _wrapAsyncGenerator from "@babel/runtime/helpers/esm/wrapAsyncGenerator";
import _awaitAsyncGenerator from "@babel/runtime/helpers/esm/awaitAsyncGenerator";
import _asyncGeneratorDelegate from "@babel/runtime/helpers/esm/asyncGeneratorDelegate";
import _asyncIterator from "@babel/runtime/helpers/esm/asyncIterator";
import { iterateAsync } from './iterate-async';
export var concatAsync = function concatAsync(iterables) {
  return _defineProperty({}, Symbol.asyncIterator, function () {
    return _wrapAsyncGenerator(function* () {
      var _iteratorNormalCompletion = true;
      var _didIteratorError = false;

      var _iteratorError;

      try {
        for (var _iterator = _asyncIterator(iterables), _step, _value; _step = yield _awaitAsyncGenerator(_iterator.next()), _iteratorNormalCompletion = _step.done, _value = yield _awaitAsyncGenerator(_step.value), !_iteratorNormalCompletion; _iteratorNormalCompletion = true) {
          var it = _value;
          yield* _asyncGeneratorDelegate(_asyncIterator(iterateAsync(it)), _awaitAsyncGenerator);
        }
      } catch (err) {
        _didIteratorError = true;
        _iteratorError = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion && _iterator.return != null) {
            yield _awaitAsyncGenerator(_iterator.return());
          }
        } finally {
          if (_didIteratorError) {
            throw _iteratorError;
          }
        }
      }
    })();
  });
};
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