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.
26 lines
906 B
26 lines
906 B
// Works with __proto__ only. Old v8 can't work with null proto objects.
|
|
/* eslint-disable no-proto */
|
|
var isObject = require('./_is-object');
|
|
var anObject = require('./_an-object');
|
|
var check = function (O, proto) {
|
|
anObject(O);
|
|
if (!isObject(proto) && proto !== null) throw TypeError(proto + ": can't set as prototype!");
|
|
};
|
|
module.exports = {
|
|
set: Object.setPrototypeOf || ('__proto__' in {} ? // eslint-disable-line
|
|
function (test, buggy, set) {
|
|
try {
|
|
set = require('./_ctx')(Function.call, require('./_object-gopd').f(Object.prototype, '__proto__').set, 2);
|
|
set(test, []);
|
|
buggy = !(test instanceof Array);
|
|
} catch (e) { buggy = true; }
|
|
return function setPrototypeOf(O, proto) {
|
|
check(O, proto);
|
|
if (buggy) O.__proto__ = proto;
|
|
else set(O, proto);
|
|
return O;
|
|
};
|
|
}({}, false) : undefined),
|
|
check: check
|
|
};
|