es6.reflect.get.js 811 B

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  1. // 26.1.6 Reflect.get(target, propertyKey [, receiver])
  2. var gOPD = require('./_object-gopd')
  3. , getPrototypeOf = require('./_object-gpo')
  4. , has = require('./_has')
  5. , $export = require('./_export')
  6. , isObject = require('./_is-object')
  7. , anObject = require('./_an-object');
  8. function get(target, propertyKey/*, receiver*/){
  9. var receiver = arguments.length < 3 ? target : arguments[2]
  10. , desc, proto;
  11. if(anObject(target) === receiver)return target[propertyKey];
  12. if(desc = gOPD.f(target, propertyKey))return has(desc, 'value')
  13. ? desc.value
  14. : desc.get !== undefined
  15. ? desc.get.call(receiver)
  16. : undefined;
  17. if(isObject(proto = getPrototypeOf(target)))return get(proto, propertyKey, receiver);
  18. }
  19. $export($export.S, 'Reflect', {get: get});