typed-utilities/build/Iterator.js

Strongly typed general purpose utilities

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.withRunToCompletion = exports.runToCompletion = exports.nextify = exports.next = void 0;

const next = iter => {
  const {
    value,
    done
  } = iter.next();

  if (done) {
    throw new Error(`Iterable is done`);
  }

  return value;
};

exports.next = next;

const nextify = iter => () => next(iter);

exports.nextify = nextify;

const runToCompletion = iter => new Promise((resolve, reject) => {
  while (true) {
    try {
      const next = iter.next();

      if (next.done) {
        resolve(next.value);
        return;
      }
    } catch (error) {
      reject(error);
    }
  }
});

exports.runToCompletion = runToCompletion;

const withRunToCompletion = fn => async () => await runToCompletion(fn());

exports.withRunToCompletion = withRunToCompletion;
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