lix-website/themes/lix/assets/bootstrap/node_modules/es-abstract/2018/Set.js
2024-04-26 22:49:34 -06:00

46 lines
1.2 KiB
JavaScript

'use strict';
var $TypeError = require('es-errors/type');
var IsPropertyKey = require('./IsPropertyKey');
var SameValue = require('./SameValue');
var Type = require('./Type');
// IE 9 does not throw in strict mode when writability/configurability/extensibility is violated
var noThrowOnStrictViolation = (function () {
try {
delete [].length;
return true;
} catch (e) {
return false;
}
}());
// https://262.ecma-international.org/6.0/#sec-set-o-p-v-throw
module.exports = function Set(O, P, V, Throw) {
if (Type(O) !== 'Object') {
throw new $TypeError('Assertion failed: `O` must be an Object');
}
if (!IsPropertyKey(P)) {
throw new $TypeError('Assertion failed: `P` must be a Property Key');
}
if (typeof Throw !== 'boolean') {
throw new $TypeError('Assertion failed: `Throw` must be a Boolean');
}
if (Throw) {
O[P] = V; // eslint-disable-line no-param-reassign
if (noThrowOnStrictViolation && !SameValue(O[P], V)) {
throw new $TypeError('Attempted to assign to readonly property.');
}
return true;
}
try {
O[P] = V; // eslint-disable-line no-param-reassign
return noThrowOnStrictViolation ? SameValue(O[P], V) : true;
} catch (e) {
return false;
}
};