save code

frontend/node_modules/is-weakset/.editorconfig

@@ -0,0 +1,15 @@
+root = true
+
+[*]
+indent_style = tab
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[package.json]
+indent_style = space
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false

frontend/node_modules/is-weakset/.eslintrc

@@ -0,0 +1,13 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"new-cap": ["error", {
+			"capIsNewExceptions": [
+				"GetIntrinsic",
+			],
+		}],
+	},
+}

frontend/node_modules/is-weakset/.gitattributes

@@ -0,0 +1 @@
+* text=auto

frontend/node_modules/is-weakset/.nycrc

@@ -0,0 +1,9 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}

frontend/node_modules/is-weakset/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 Inspect JS
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

frontend/node_modules/is-weakset/index.js

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+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+var callBound = require('call-bound');
+
+var $WeakSet = GetIntrinsic('%WeakSet%', true);
+
+/** @type {undefined | (<V>(thisArg: Set<V>, value: V) => boolean)} */
+var $setHas = callBound('WeakSet.prototype.has', true);
+
+if ($setHas) {
+	/** @type {undefined | (<K extends object, V>(thisArg: WeakMap<K, V>, key: K) => boolean)} */
+	var $mapHas = callBound('WeakMap.prototype.has', true);
+
+	/** @type {import('.')} */
+	module.exports = function isWeakSet(x) {
+		if (!x || typeof x !== 'object') {
+			return false;
+		}
+		try {
+			// @ts-expect-error TS can't figure out that $setHas is always truthy here
+			$setHas(x, $setHas);
+			if ($mapHas) {
+				try {
+					// @ts-expect-error this indeed might not be a weak collection
+					$mapHas(x, $mapHas);
+				} catch (e) {
+					return true;
+				}
+			}
+			// @ts-expect-error TS can't figure out that $WeakSet is always truthy here
+			return x instanceof $WeakSet; // core-js workaround, pre-v3
+		} catch (e) {}
+		return false;
+	};
+} else {
+	/** @type {import('.')} */
+	// @ts-expect-error
+	module.exports = function isWeakSet(x) { // eslint-disable-line no-unused-vars
+		// `WeakSet` does not exist, or does not have a `has` method
+		return false;
+	};
+}