fix: supporte moving default lists for xml parser

.changes/next-release/bugfix-parser-5e14f8ef.json

@@ -0,0 +1,5 @@
+{
+  "type": "bugfix",
+  "category": "parser",
+  "description": "Now we can disable inserting empty array in xml parser if the member doesn't exist in response."
+}

apis/metadata.json

@@ -360,7 +360,8 @@
   },
   "s3control": {
     "name": "S3Control",
-    "dualstackAvailable": true
+    "dualstackAvailable": true,
+    "xmlNoDefaultLists": true
   },
   "servicecatalog": {
     "name": "ServiceCatalog",

lib/model/api.js

@@ -3,6 +3,7 @@ var Operation = require('./operation');
 var Shape = require('./shape');
 var Paginator = require('./paginator');
 var ResourceWaiter = require('./resource_waiter');
+var metadata = require('../../apis/metadata.json');
 
 var util = require('../util');
 var property = util.property;
@@ -16,6 +17,9 @@ function Api(api, options) {
 
   api.metadata = api.metadata || {};
 
+  var serviceIdentifier = options.serviceIdentifier;
+  delete options.serviceIdentifier;
+
   property(this, 'isApi', true, false);
   property(this, 'apiVersion', api.metadata.apiVersion);
   property(this, 'endpointPrefix', api.metadata.endpointPrefix);
@@ -30,6 +34,9 @@ function Api(api, options) {
   property(this, 'abbreviation', api.metadata.serviceAbbreviation);
   property(this, 'fullName', api.metadata.serviceFullName);
   property(this, 'serviceId', api.metadata.serviceId);
+  if (serviceIdentifier) {
+      property(this, 'xmlNoDefaultLists', metadata[serviceIdentifier].xmlNoDefaultLists, false);
+  }
 
   memoizedProperty(this, 'className', function() {
     var name = api.metadata.serviceAbbreviation || api.metadata.serviceFullName;

lib/service.js

@@ -751,7 +751,9 @@ AWS.util.update(AWS.Service, {
       if (api.isApi) {
         svc.prototype.api = api;
       } else {
-        svc.prototype.api = new Api(api);
+        svc.prototype.api = new Api(api, {
+          serviceIdentifier: superclass.serviceIdentifier
+        });
       }
     }
 

lib/xml/browser_parser.js

@@ -108,7 +108,10 @@ function parseStructure(xml, shape) {
         getElementByTagName(xml, memberShape.name);
       if (xmlChild) {
         data[memberName] = parseXml(xmlChild, memberShape);
-      } else if (!memberShape.flattened && memberShape.type === 'list') {
+      } else if (
+        !memberShape.flattened &&
+        memberShape.type === 'list' &&
+        !shape.api.xmlNoDefaultLists) {
         data[memberName] = memberShape.defaultValue;
       }
     }

lib/xml/node_parser.js

@@ -70,7 +70,7 @@ function parseStructure(xml, shape) {
     } else if (memberShape.isXmlAttribute &&
                xml.$ && Object.prototype.hasOwnProperty.call(xml.$, xmlName)) {
       data[memberName] = parseScalar(xml.$[xmlName], memberShape);
-    } else if (memberShape.type === 'list') {
+    } else if (memberShape.type === 'list' && !shape.api.xmlNoDefaultLists) {
       data[memberName] = memberShape.defaultValue;
     }
   });