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Name	Size	Permission	Action
.github	[ DIR ]	dr-xr-xr-x
test	[ DIR ]	dr-xr-xr-x
.editorconfig	286 B	-rw-rw-rw-
.eslintrc	171 B	-rw-rw-rw-
.nycrc	139 B	-rw-rw-rw-
CHANGELOG.md	9.4 KB	-rw-rw-rw-
LICENSE	1.05 KB	-rw-rw-rw-
README.md	2.29 KB	-rw-rw-rw-
index.js	1.53 KB	-rw-rw-rw-
package.json	1.71 KB	-rw-rw-rw-

Code Editor : index.js

'use strict';

var hasOwn = require('hasown');
var channel = require('side-channel')();

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

var SLOT = {
	assert: function (O, slot) {
		if (!O || (typeof O !== 'object' && typeof O !== 'function')) {
			throw new $TypeError('`O` is not an object');
		}
		if (typeof slot !== 'string') {
			throw new $TypeError('`slot` must be a string');
		}
		channel.assert(O);
		if (!SLOT.has(O, slot)) {
			throw new $TypeError('`' + slot + '` is not present on `O`');
		}
	},
	get: function (O, slot) {
		if (!O || (typeof O !== 'object' && typeof O !== 'function')) {
			throw new $TypeError('`O` is not an object');
		}
		if (typeof slot !== 'string') {
			throw new $TypeError('`slot` must be a string');
		}
		var slots = channel.get(O);
		return slots && slots['$' + slot];
	},
	has: function (O, slot) {
		if (!O || (typeof O !== 'object' && typeof O !== 'function')) {
			throw new $TypeError('`O` is not an object');
		}
		if (typeof slot !== 'string') {
			throw new $TypeError('`slot` must be a string');
		}
		var slots = channel.get(O);
		return !!slots && hasOwn(slots, '$' + slot);
	},
	set: function (O, slot, V) {
		if (!O || (typeof O !== 'object' && typeof O !== 'function')) {
			throw new $TypeError('`O` is not an object');
		}
		if (typeof slot !== 'string') {
			throw new $TypeError('`slot` must be a string');
		}
		var slots = channel.get(O);
		if (!slots) {
			slots = {};
			channel.set(O, slots);
		}
		slots['$' + slot] = V;
	}
};

if (Object.freeze) {
	Object.freeze(SLOT);
}

module.exports = SLOT;