FM / side-channel-list

/home/techb158/balavpn.abdallabala.com/node_modules/side-channel-list/

/home/techb158/balavpn.abdallabala.com/node_modules/side-channel-list

Name	Size	Mode	Actions
.github/	-	0777	rm
test/	-	0777	rm
.editorconfig	145	0666	edit dl rm
.eslintrc	185	0666	edit dl rm
.nycrc	216	0666	edit dl rm
CHANGELOG.md	1634	0666	edit dl rm
index.d.ts	335	0666	edit dl rm
index.js	3289	0666	edit dl rm
LICENSE	1071	0666	edit dl rm
list.d.ts	721	0666	edit dl rm
package.json	2258	0666	edit dl rm
README.md	2285	0666	edit dl rm
tsconfig.json	116	0666	edit dl rm

Edit: /home/techb158/balavpn.abdallabala.com/node_modules/side-channel-list/index.js (3289B)

'use strict';

var inspect = require('object-inspect');

var $TypeError = require('es-errors/type');

/*
* This function traverses the list returning the node corresponding to the given key.
*
* That node is also moved to the head of the list, so that if it's accessed again we don't need to traverse the whole list.
* By doing so, all the recently used nodes can be accessed relatively quickly.
*/
/** @type {import('./list.d.ts').listGetNode} */
// eslint-disable-next-line consistent-return
var listGetNode = function (list, key, isDelete) {
	/** @type {typeof list | NonNullable<(typeof list)['next']>} */
	var prev = list;
	/** @type {(typeof list)['next']} */
	var curr;
	// eslint-disable-next-line eqeqeq
	for (; (curr = prev.next) != null; prev = curr) {
		if (curr.key === key) {
			prev.next = curr.next;
			if (!isDelete) {
				// eslint-disable-next-line no-extra-parens
				curr.next = /** @type {NonNullable<typeof list.next>} */ (list.next);
				list.next = curr; // eslint-disable-line no-param-reassign
			}
			return curr;
		}
	}
};

/** @type {import('./list.d.ts').listGet} */
var listGet = function (objects, key) {
	if (!objects) {
		return void undefined;
	}
	var node = listGetNode(objects, key);
	return node && node.value;
};
/** @type {import('./list.d.ts').listSet} */
var listSet = function (objects, key, value) {
	var node = listGetNode(objects, key);
	if (node) {
		node.value = value;
	} else {
		// Prepend the new node to the beginning of the list
		objects.next = /** @type {import('./list.d.ts').ListNode<typeof value, typeof key>} */ ({ // eslint-disable-line no-param-reassign, no-extra-parens
			key: key,
			next: objects.next,
			value: value
		});
	}
};
/** @type {import('./list.d.ts').listHas} */
var listHas = function (objects, key) {
	if (!objects) {
		return false;
	}
	return !!listGetNode(objects, key);
};
/** @type {import('./list.d.ts').listDelete} */
// eslint-disable-next-line consistent-return
var listDelete = function (objects, key) {
	if (objects) {
		return listGetNode(objects, key, true);
	}
};

/** @type {import('.')} */
module.exports = function getSideChannelList() {
	/** @typedef {ReturnType<typeof getSideChannelList>} Channel */
	/** @typedef {Parameters<Channel['get']>[0]} K */
	/** @typedef {Parameters<Channel['set']>[1]} V */

/** @type {import('./list.d.ts').RootNode<V, K> | undefined} */ var $o;

/** @type {Channel} */
	var channel = {
		assert: function (key) {
			if (!channel.has(key)) {
				throw new $TypeError('Side channel does not contain ' + inspect(key));
			}
		},
		'delete': function (key) {
			var deletedNode = listDelete($o, key);
			if (deletedNode && $o && !$o.next) {
				$o = void undefined;
			}
			return !!deletedNode;
		},
		get: function (key) {
			return listGet($o, key);
		},
		has: function (key) {
			return listHas($o, key);
		},
		set: function (key, value) {
			if (!$o) {
				// Initialize the linked list as an empty node, so that we don't have to special-case handling of the first node: we can always refer to it as (previous node).next, instead of something like (list).head
				$o = {
					next: void undefined
				};
			}
			// eslint-disable-next-line no-extra-parens
			listSet(/** @type {NonNullable<typeof $o>} */ ($o), key, value);
		}
	};
	return channel;
};

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