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