| // 26.1.13 Reflect.set(target, propertyKey, V [, receiver]) |
| var dP = require('./_object-dp') |
| , gOPD = require('./_object-gopd') |
| , getPrototypeOf = require('./_object-gpo') |
| , has = require('./_has') |
| , $export = require('./_export') |
| , createDesc = require('./_property-desc') |
| , anObject = require('./_an-object') |
| , isObject = require('./_is-object'); |
| |
| function set(target, propertyKey, V/*, receiver*/){ |
| var receiver = arguments.length < 4 ? target : arguments[3] |
| , ownDesc = gOPD.f(anObject(target), propertyKey) |
| , existingDescriptor, proto; |
| if(!ownDesc){ |
| if(isObject(proto = getPrototypeOf(target))){ |
| return set(proto, propertyKey, V, receiver); |
| } |
| ownDesc = createDesc(0); |
| } |
| if(has(ownDesc, 'value')){ |
| if(ownDesc.writable === false || !isObject(receiver))return false; |
| existingDescriptor = gOPD.f(receiver, propertyKey) || createDesc(0); |
| existingDescriptor.value = V; |
| dP.f(receiver, propertyKey, existingDescriptor); |
| return true; |
| } |
| return ownDesc.set === undefined ? false : (ownDesc.set.call(receiver, V), true); |
| } |
| |
| $export($export.S, 'Reflect', {set: set}); |