From 806f65e339e0b5705c24bd4d9b363a721eff82c3 Mon Sep 17 00:00:00 2001
From: jsteemann <jan@arangodb.com>
Date: Sat, 14 May 2016 00:10:06 +0200
Subject: [PATCH] remove unused objects

---
 arangod/Aql/Expression.cpp         | 3 +--
 arangod/Aql/Expression.h           | 3 ---
 arangod/Aql/ModificationBlocks.cpp | 3 +--
 arangod/Aql/ModificationBlocks.h   | 3 ---
 4 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/arangod/Aql/Expression.cpp b/arangod/Aql/Expression.cpp
index 98534f326e..3d3b40f2ed 100644
--- a/arangod/Aql/Expression.cpp
+++ b/arangod/Aql/Expression.cpp
@@ -74,8 +74,7 @@ Expression::Expression(Ast* ast, AstNode* node)
       _isDeterministic(false),
       _hasDeterminedAttributes(false),
       _built(false),
-      _attributes(),
-      _buffer(TRI_UNKNOWN_MEM_ZONE) {
+      _attributes() {
   TRI_ASSERT(_ast != nullptr);
   TRI_ASSERT(_executor != nullptr);
   TRI_ASSERT(_node != nullptr);
diff --git a/arangod/Aql/Expression.h b/arangod/Aql/Expression.h
index ca5b1e1d39..e76996eddb 100644
--- a/arangod/Aql/Expression.h
+++ b/arangod/Aql/Expression.h
@@ -388,9 +388,6 @@ class Expression {
   std::unordered_map<Variable const*, std::unordered_set<std::string>>
       _attributes;
 
-  /// @brief buffer for temporary strings
-  arangodb::basics::StringBuffer _buffer;
-
   /// @brief variables only temporarily valid during execution
   std::unordered_map<Variable const*, arangodb::velocypack::Slice> _variables;
 
diff --git a/arangod/Aql/ModificationBlocks.cpp b/arangod/Aql/ModificationBlocks.cpp
index fbf93e45bb..c1e972a9c1 100644
--- a/arangod/Aql/ModificationBlocks.cpp
+++ b/arangod/Aql/ModificationBlocks.cpp
@@ -43,8 +43,7 @@ ModificationBlock::ModificationBlock(ExecutionEngine* engine,
       _outRegNew(ExecutionNode::MaxRegisterId),
       _collection(ep->_collection),
       _isDBServer(false),
-      _usesDefaultSharding(true),
-      _buffer(TRI_UNKNOWN_MEM_ZONE) {
+      _usesDefaultSharding(true) {
 
   _trx->orderDitch(_collection->cid());
 
diff --git a/arangod/Aql/ModificationBlocks.h b/arangod/Aql/ModificationBlocks.h
index ceb6fb719f..fe3f528018 100644
--- a/arangod/Aql/ModificationBlocks.h
+++ b/arangod/Aql/ModificationBlocks.h
@@ -73,9 +73,6 @@ class ModificationBlock : public ExecutionBlock {
 
   /// @brief whether or not the collection uses the default sharding attributes
   bool _usesDefaultSharding;
-
-  /// @brief temporary string buffer for extracting system attributes
-  arangodb::basics::StringBuffer _buffer;
 };
 
 class RemoveBlock : public ModificationBlock {