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app_vue/node_modules/async/doWhilst.js

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+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+
+var _onlyOnce = require('./internal/onlyOnce.js');
+
+var _onlyOnce2 = _interopRequireDefault(_onlyOnce);
+
+var _wrapAsync = require('./internal/wrapAsync.js');
+
+var _wrapAsync2 = _interopRequireDefault(_wrapAsync);
+
+var _awaitify = require('./internal/awaitify.js');
+
+var _awaitify2 = _interopRequireDefault(_awaitify);
+
+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 {AsyncFunction} test - asynchronous truth test to perform after each
+ * execution of `iteratee`. Invoked with (...args, callback), where `...args` are the
+ * non-error args from the previous callback 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]);
+ * @returns {Promise} a promise, if no callback is passed
+ */
+function doWhilst(iteratee, test, callback) {
+    callback = (0, _onlyOnce2.default)(callback);
+    var _fn = (0, _wrapAsync2.default)(iteratee);
+    var _test = (0, _wrapAsync2.default)(test);
+    var results;
+
+    function next(err, ...args) {
+        if (err) return callback(err);
+        if (err === false) return;
+        results = args;
+        _test(...args, check);
+    }
+
+    function check(err, truth) {
+        if (err) return callback(err);
+        if (err === false) return;
+        if (!truth) return callback(null, ...results);
+        _fn(next);
+    }
+
+    return check(null, true);
+}
+
+exports.default = (0, _awaitify2.default)(doWhilst, 3);
+module.exports = exports.default;