apr-engine-run/dist/apr-engine-run.umd.js

(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('apr-engine-iterator')) :
	typeof define === 'function' && define.amd ? define('apr-engine-run', ['apr-engine-iterator'], factory) :
	(global['apr-engine-run'] = factory(global.aprEngineIterator));
}(this, (function (aprEngineIterator) { 'use strict';

aprEngineIterator = aprEngineIterator && aprEngineIterator.hasOwnProperty('default') ? aprEngineIterator['default'] : aprEngineIterator;

var engineRun = function (input, fn, opts) {
  var ittr = aprEngineIterator(input);

  var done = false;
  var brk = false;
  var i = 0;

  var after = function after(items, end) {
    return function (v) {
      brk = brk || items.some(function (item, y) {
        return opts.after && opts.after(v[y], item, i++);
      });

      done = done || brk;

      return done ? end() : next(end);
    };
  };

  var next = function next(end) {
    var items = ittr.next(opts.limit).filter(function (item) {
      done = done || item.done;
      return !item.done;
    });

    var call = opts.call || function (item) {
      return fn(item.value, item.key, input);
    };

    Promise.all(items.map(call)).then(after(items, end), end);
  };

  return new Promise(function (resolve, reject) {
    return next(function (err, res) {
      return err ? reject(err) : resolve(res);
    });
  });
};

return engineRun;

})));

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