Place isSet members at the bottom of model classes to reduce class sizes.

Moves generated m_isSet members all to the end of generated models, reducing the amount of space lost to padding bytes. This can reduce the size of classes by 20% depending on their size and member types.

Author: apache-hb

tools/code-generation/generator/src/main/resources/com/amazonaws/util/awsclientgenerator/velocity/cpp/ModelClassMembersAndInlines.vm

@@ -155,3 +155,14 @@
 
 #end
 #end##if($shape.members.size() > 0)
+#foreach($member in $shape.members.entrySet())
+#if(!($CppViewHelper.isStreamingPayloadMember($shape, $member.key) && $shape.request))
+#set($isStreamingMember = ($shape.payload && ($shape.payload == $entry.key && !$entry.value.shape.structure)))
+#set($isRequired = $useRequiredField && $member.value.required)
+#if(($isRequired || $member.value.idempotencyToken) && !$isStreamingMember && !$member.value.shape.isEventStream())
+    bool ${CppViewHelper.computeVariableHasBeenSetName($member.key)} = true;
+#else
+    bool ${CppViewHelper.computeVariableHasBeenSetName($member.key)} = false;
+#end
+#end
+#end##if($shape.members.size() > 0)

tools/code-generation/generator/src/main/resources/com/amazonaws/util/awsclientgenerator/velocity/cpp/common/model/ServiceClientModelHeaderMemberDeclaration.vm

@@ -30,11 +30,4 @@
 #set($initializer = "{${member.value.shape.name}::NOT_SET}")
 #end
     $cppType $memberVariableName$initializer;
-#end
-#set($isStreamingMember = ($shape.payload && ($shape.payload == $entry.key && !$entry.value.shape.structure)))
-#set($isRequired = $useRequiredField && $member.value.required)
-#if(($isRequired || $isIdempontencyToken) && !$isStreamingMember && !$member.value.shape.isEventStream())
-    bool ${CppViewHelper.computeVariableHasBeenSetName($member.key)} = true;
-#else
-    bool ${CppViewHelper.computeVariableHasBeenSetName($member.key)} = false;
 #end