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backend/node_modules/async/internal/wrapAsync.js

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+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+exports.isAsync = exports.supportsAsync = undefined;
+
+var _identity = require('lodash/identity');
+
+var _identity2 = _interopRequireDefault(_identity);
+
+var _asyncify = require('../asyncify');
+
+var _asyncify2 = _interopRequireDefault(_asyncify);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var supportsSymbol = typeof Symbol === 'function';
+
+function supportsAsync() {
+    var supported;
+    try {
+        /* eslint no-eval: 0 */
+        supported = isAsync(eval('(async function () {})'));
+    } catch (e) {
+        supported = false;
+    }
+    return supported;
+}
+
+function isAsync(fn) {
+    return supportsSymbol && fn[Symbol.toStringTag] === 'AsyncFunction';
+}
+
+function wrapAsync(asyncFn) {
+    return isAsync(asyncFn) ? (0, _asyncify2.default)(asyncFn) : asyncFn;
+}
+
+exports.default = supportsAsync() ? wrapAsync : _identity2.default;
+exports.supportsAsync = supportsAsync;
+exports.isAsync = isAsync;