You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
2.0 KiB
59 lines
2.0 KiB
4 years ago
|
'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'];
|