You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
45 lines
1.9 KiB
45 lines
1.9 KiB
3 years ago
|
var global = require('../internals/global');
|
||
|
|
var DESCRIPTORS = require('../internals/descriptors');
|
||
|
|
var IE8_DOM_DEFINE = require('../internals/ie8-dom-define');
|
||
|
|
var V8_PROTOTYPE_DEFINE_BUG = require('../internals/v8-prototype-define-bug');
|
||
|
|
var anObject = require('../internals/an-object');
|
||
|
|
var toPropertyKey = require('../internals/to-property-key');
|
||
|
|
|
||
|
|
var TypeError = global.TypeError;
|
||
|
|
// eslint-disable-next-line es/no-object-defineproperty -- safe
|
||
|
|
var $defineProperty = Object.defineProperty;
|
||
|
|
// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
|
||
|
|
var $getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
|
||
|
|
var ENUMERABLE = 'enumerable';
|
||
|
|
var CONFIGURABLE = 'configurable';
|
||
|
|
var WRITABLE = 'writable';
|
||
|
|
|
||
|
|
// `Object.defineProperty` method
|
||
|
|
// https://tc39.es/ecma262/#sec-object.defineproperty
|
||
|
|
exports.f = DESCRIPTORS ? V8_PROTOTYPE_DEFINE_BUG ? function defineProperty(O, P, Attributes) {
|
||
|
|
anObject(O);
|
||
|
|
P = toPropertyKey(P);
|
||
|
|
anObject(Attributes);
|
||
|
|
if (typeof O === 'function' && P === 'prototype' && 'value' in Attributes && WRITABLE in Attributes && !Attributes[WRITABLE]) {
|
||
|
|
var current = $getOwnPropertyDescriptor(O, P);
|
||
|
|
if (current && current[WRITABLE]) {
|
||
|
|
O[P] = Attributes.value;
|
||
|
|
Attributes = {
|
||
|
|
configurable: CONFIGURABLE in Attributes ? Attributes[CONFIGURABLE] : current[CONFIGURABLE],
|
||
|
|
enumerable: ENUMERABLE in Attributes ? Attributes[ENUMERABLE] : current[ENUMERABLE],
|
||
|
|
writable: false
|
||
|
|
};
|
||
|
|
}
|
||
|
|
} return $defineProperty(O, P, Attributes);
|
||
|
|
} : $defineProperty : function defineProperty(O, P, Attributes) {
|
||
|
|
anObject(O);
|
||
|
|
P = toPropertyKey(P);
|
||
|
|
anObject(Attributes);
|
||
|
|
if (IE8_DOM_DEFINE) try {
|
||
|
|
return $defineProperty(O, P, Attributes);
|
||
|
|
} catch (error) { /* empty */ }
|
||
|
|
if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported');
|
||
|
|
if ('value' in Attributes) O[P] = Attributes.value;
|
||
|
|
return O;
|
||
|
|
};
|