--- /dev/null
+var metadata = require('./_metadata')
+ , anObject = require('./_an-object')
+ , getPrototypeOf = require('./_object-gpo')
+ , ordinaryHasOwnMetadata = metadata.has
+ , toMetaKey = metadata.key;
+
+var ordinaryHasMetadata = function(MetadataKey, O, P){
+ var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P);
+ if(hasOwn)return true;
+ var parent = getPrototypeOf(O);
+ return parent !== null ? ordinaryHasMetadata(MetadataKey, parent, P) : false;
+};
+
+metadata.exp({hasMetadata: function hasMetadata(metadataKey, target /*, targetKey */){
+ return ordinaryHasMetadata(metadataKey, anObject(target), arguments.length < 3 ? undefined : toMetaKey(arguments[2]));
+}});
\ No newline at end of file