1var metadata = require('./_metadata'); 2var anObject = require('./_an-object'); 3var getPrototypeOf = require('./_object-gpo'); 4var ordinaryHasOwnMetadata = metadata.has; 5var toMetaKey = metadata.key; 6 7var ordinaryHasMetadata = function (MetadataKey, O, P) { 8 var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P); 9 if (hasOwn) return true; 10 var parent = getPrototypeOf(O); 11 return parent !== null ? ordinaryHasMetadata(MetadataKey, parent, P) : false; 12}; 13 14metadata.exp({ hasMetadata: function hasMetadata(metadataKey, target /* , targetKey */) { 15 return ordinaryHasMetadata(metadataKey, anObject(target), arguments.length < 3 ? undefined : toMetaKey(arguments[2])); 16} }); 17