micro optimizations

arangod/Aql/BasicBlocks.h

@@ -35,7 +35,7 @@ class AqlItemBlock;
 
 class ExecutionEngine;
 
-class SingletonBlock : public ExecutionBlock {
+class SingletonBlock final : public ExecutionBlock {
  public:
   SingletonBlock(ExecutionEngine* engine, SingletonNode const* ep)
       : ExecutionBlock(engine, ep), _inputRegisterValues(nullptr), _whitelistBuilt(false) {}
@@ -75,7 +75,7 @@ class SingletonBlock : public ExecutionBlock {
   bool _whitelistBuilt;
 };
 
-class FilterBlock : public ExecutionBlock {
+class FilterBlock final : public ExecutionBlock {
  public:
   FilterBlock(ExecutionEngine*, FilterNode const*);
 
@@ -112,7 +112,7 @@ class FilterBlock : public ExecutionBlock {
   BlockCollector _collector;
 };
 
-class LimitBlock : public ExecutionBlock {
+class LimitBlock final : public ExecutionBlock {
  public:
   LimitBlock(ExecutionEngine* engine, LimitNode const* ep)
       : ExecutionBlock(engine, ep),
@@ -145,7 +145,7 @@ class LimitBlock : public ExecutionBlock {
   bool const _fullCount;
 };
 
-class ReturnBlock : public ExecutionBlock {
+class ReturnBlock final : public ExecutionBlock {
  public:
   ReturnBlock(ExecutionEngine* engine, ReturnNode const* ep)
       : ExecutionBlock(engine, ep), _returnInheritedResults(false) {}
@@ -168,7 +168,7 @@ class ReturnBlock : public ExecutionBlock {
   bool _returnInheritedResults;
 };
 
-class NoResultsBlock : public ExecutionBlock {
+class NoResultsBlock final : public ExecutionBlock {
  public:
   NoResultsBlock(ExecutionEngine* engine, NoResultsNode const* ep)
       : ExecutionBlock(engine, ep) {}

arangod/Aql/CalculationBlock.h

@@ -34,7 +34,7 @@ class AqlItemBlock;
 
 class ExecutionEngine;
 
-class CalculationBlock : public ExecutionBlock {
+class CalculationBlock final : public ExecutionBlock {
  public:
   CalculationBlock(ExecutionEngine*, CalculationNode const*);
 

arangod/Aql/CollectBlock.h

@@ -43,7 +43,7 @@ class ExecutionEngine;
 
 typedef std::vector<Aggregator*> AggregateValuesType;
 
-class SortedCollectBlock : public ExecutionBlock {
+class SortedCollectBlock final : public ExecutionBlock {
  private:
   typedef std::vector<Aggregator*> AggregateValuesType;
 

arangod/Aql/EnumerateCollectionBlock.h

@@ -41,7 +41,7 @@ struct Collection;
 class CollectionScanner;
 class ExecutionEngine;
 
-class EnumerateCollectionBlock : public ExecutionBlock {
+class EnumerateCollectionBlock final : public ExecutionBlock {
  public:
   EnumerateCollectionBlock(ExecutionEngine* engine,
                            EnumerateCollectionNode const* ep);

arangod/Aql/ExecutionNode.cpp

@@ -1139,7 +1139,7 @@ void ExecutionNode::RegisterPlan::after(ExecutionNode* en) {
         regsToClear.emplace(r);
       }
     }
-    en->setRegsToClear(regsToClear);
+    en->setRegsToClear(std::move(regsToClear));
   }
 }
 

arangod/Aql/ExecutionNode.h

@@ -586,8 +586,8 @@ class ExecutionNode {
   void toVelocyPackHelperGeneric(arangodb::velocypack::Builder&, bool) const;
 
   /// @brief set regs to be deleted
-  void setRegsToClear(std::unordered_set<RegisterId> const& toClear) {
+  void setRegsToClear(std::unordered_set<RegisterId>&& toClear) {
-    _regsToClear = toClear;
+    _regsToClear = std::move(toClear);
   }
 
  protected:

arangod/Aql/IndexBlock.h

@@ -59,7 +59,7 @@ struct NonConstExpression {
   ~NonConstExpression() { delete expression; }
 };
 
-class IndexBlock : public ExecutionBlock {
+class IndexBlock final : public ExecutionBlock {
  public:
   IndexBlock(ExecutionEngine* engine, IndexNode const* ep);
 

arangod/Aql/SortBlock.h

@@ -37,7 +37,7 @@ class AqlItemBlock;
 
 class ExecutionEngine;
 
-class SortBlock : public ExecutionBlock {
+class SortBlock final : public ExecutionBlock {
  public:
   SortBlock(ExecutionEngine*, SortNode const*);
 

arangod/Aql/TraversalBlock.h

@@ -37,7 +37,7 @@ class ManagedDocumentResult;
 
 namespace aql {
 
-class TraversalBlock : public ExecutionBlock {
+class TraversalBlock final : public ExecutionBlock {
  public:
   TraversalBlock(ExecutionEngine* engine, TraversalNode const* ep);