Constnium/node_modules/internal-slot/index.js

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2022-06-23 02:27:43 +02:00
'use strict';
var GetIntrinsic = require('get-intrinsic');
var has = require('has');
var channel = require('side-channel')();
var $TypeError = GetIntrinsic('%TypeError%');
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);
},
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 $TypeError('`slot` must be a string');
}
var slots = channel.get(O);
return !!slots && has(slots, '$' + 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;