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- 'use strict';
- Object.defineProperty(exports, "__esModule", {
- value: true
- });
- exports.default = doWhilst;
- var _noop = require('lodash/noop');
- var _noop2 = _interopRequireDefault(_noop);
- var _slice = require('./internal/slice');
- var _slice2 = _interopRequireDefault(_slice);
- var _onlyOnce = require('./internal/onlyOnce');
- var _onlyOnce2 = _interopRequireDefault(_onlyOnce);
- var _wrapAsync = require('./internal/wrapAsync');
- var _wrapAsync2 = _interopRequireDefault(_wrapAsync);
- function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
- /**
- * The post-check version of [`whilst`]{@link module:ControlFlow.whilst}. To reflect the difference in
- * the order of operations, the arguments `test` and `iteratee` are switched.
- *
- * `doWhilst` is to `whilst` as `do while` is to `while` in plain JavaScript.
- *
- * @name doWhilst
- * @static
- * @memberOf module:ControlFlow
- * @method
- * @see [async.whilst]{@link module:ControlFlow.whilst}
- * @category Control Flow
- * @param {AsyncFunction} iteratee - A function which is called each time `test`
- * passes. Invoked with (callback).
- * @param {Function} test - synchronous truth test to perform after each
- * execution of `iteratee`. Invoked with any non-error callback results of
- * `iteratee`.
- * @param {Function} [callback] - A callback which is called after the test
- * function has failed and repeated execution of `iteratee` has stopped.
- * `callback` will be passed an error and any arguments passed to the final
- * `iteratee`'s callback. Invoked with (err, [results]);
- */
- function doWhilst(iteratee, test, callback) {
- callback = (0, _onlyOnce2.default)(callback || _noop2.default);
- var _iteratee = (0, _wrapAsync2.default)(iteratee);
- var next = function (err /*, ...args*/) {
- if (err) return callback(err);
- var args = (0, _slice2.default)(arguments, 1);
- if (test.apply(this, args)) return _iteratee(next);
- callback.apply(null, [null].concat(args));
- };
- _iteratee(next);
- }
- module.exports = exports['default'];
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