1 // 26.1.13 Reflect.set(target, propertyKey, V [, receiver])
2 var dP = require('./_object-dp')
3 , gOPD = require('./_object-gopd')
4 , getPrototypeOf = require('./_object-gpo')
5 , has = require('./_has')
6 , $export = require('./_export')
7 , createDesc = require('./_property-desc')
8 , anObject = require('./_an-object')
9 , isObject = require('./_is-object');
11 function set(target, propertyKey, V/*, receiver*/){
12 var receiver = arguments.length < 4 ? target : arguments[3]
13 , ownDesc = gOPD.f(anObject(target), propertyKey)
14 , existingDescriptor, proto;
16 if(isObject(proto = getPrototypeOf(target))){
17 return set(proto, propertyKey, V, receiver);
19 ownDesc = createDesc(0);
21 if(has(ownDesc, 'value')){
22 if(ownDesc.writable === false || !isObject(receiver))return false;
23 existingDescriptor = gOPD.f(receiver, propertyKey) || createDesc(0);
24 existingDescriptor.value = V;
25 dP.f(receiver, propertyKey, existingDescriptor);
28 return ownDesc.set === undefined ? false : (ownDesc.set.call(receiver, V), true);
31 $export($export.S, 'Reflect', {set: set});