Merge pull request #60 from Azure/small-fixing

small bug fixing

README.md

@@ -142,6 +142,9 @@ cli:
                 rp: RP
                 db: DB
                 adls: Adls
+                dw: DW
+                ti: TI
+                MCAS: MCAS
                 # workaround for modelerfour issue
                 # https://github.com/Azure/autorest.modelerfour/issues/195
                 SubscriptionId: SubscriptionId
@@ -161,6 +164,9 @@ cli:
                 rp: RP
                 db: DB
                 adls: Adls
+                dw: DW
+                ti: TI
+                MCAS: MCAS
                 # workaround for modelerfour issue
                 SubscriptionId: SubscriptionId
             parameter: 'camel'

src/nodeHelper.ts

@@ -285,7 +285,7 @@ export class NodeHelper {
             if (isNullOrUndefined(defaultWhenNotExist))
                 return undefined;
             else
-                defaultWhenNotExist();
+                return defaultWhenNotExist();
         }
         if (isNullOrUndefined(node.extensions[propertyName])) {
             if (isNullOrUndefined(defaultWhenNotExist))