add post processors for leafs, memberleafs, unions and usages

src/ZoneCodeGeneratorLib/Parsing/PostProcessing/UnionsPostProcessor.cpp

@@ -0,0 +1,50 @@
+#include "UnionsPostProcessor.h"
+
+#include <algorithm>
+#include <iostream>
+
+bool UnionsPostProcessor::ProcessUnion(StructureInformation* info)
+{
+    auto index = 0u;
+    auto lastEntryWithoutCondition = 0u;
+    auto entriesWithoutConditionCount = 0u;
+
+    for(const auto& member : info->m_ordered_members)
+    {
+        if(!member->m_condition && !member->m_is_leaf)
+        {
+            entriesWithoutConditionCount++;
+            lastEntryWithoutCondition = index;
+        }
+        index++;
+    }
+
+    if (entriesWithoutConditionCount > 1 && !info->m_usages.empty() && !info->m_is_leaf)
+    {
+        std::cout << "Union '" << info->m_definition->GetFullName() << "' has more than one entry without a condition!" << std::endl;
+        return false;
+    }
+
+    if (entriesWithoutConditionCount == 1)
+    {
+        // If there is only one entry without condition make it the last of the ordered members
+        auto entryWithoutCondition = std::move(info->m_ordered_members.at(lastEntryWithoutCondition));
+        info->m_ordered_members.erase(info->m_ordered_members.begin() + lastEntryWithoutCondition);
+        info->m_ordered_members.emplace_back(std::move(entryWithoutCondition));
+    }
+
+    return true;
+}
+
+bool UnionsPostProcessor::PostProcess(IDataRepository* repository)
+{
+    const auto& allInfos = repository->GetAllStructureInformation();
+
+    return std::all_of(allInfos.begin(), allInfos.end(), [](StructureInformation* info)
+    {
+        if (info->m_definition->GetType() != DataDefinitionType::UNION)
+            return true;
+
+        return ProcessUnion(info);
+    });
+}