From f8c070c5e4d5de9b45ffa30840ec4a0894f78e5e Mon Sep 17 00:00:00 2001
From: Victor Berchet <victor@suumit.com>
Date: Wed, 3 Dec 2014 11:03:52 +0100
Subject: [PATCH] perf(ProtoRecord): remove the unused prev field

---
 modules/change_detection/src/record.js       | 6 ++----
 modules/change_detection/src/record_range.js | 2 --
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/modules/change_detection/src/record.js b/modules/change_detection/src/record.js
index 464ca3e7c9..b05e1277ac 100644
--- a/modules/change_detection/src/record.js
+++ b/modules/change_detection/src/record.js
@@ -33,10 +33,9 @@ export class ProtoRecord {
   funcOrValue:any;
   arity:int;
   name:string;
-  dest;
-
+  dest:any;
   next:ProtoRecord;
-  prev:ProtoRecord;
+
   recordInConstruction:Record;
   constructor(recordRange:ProtoRecordRange,
               mode:int,
@@ -53,7 +52,6 @@ export class ProtoRecord {
     this.dest = dest;
 
     this.next = null;
-    this.prev = null;
     // The concrete Record instantiated from this ProtoRecord
     this.recordInConstruction = null;
   }
diff --git a/modules/change_detection/src/record_range.js b/modules/change_detection/src/record_range.js
index e97dd702d3..e01eb32ff9 100644
--- a/modules/change_detection/src/record_range.js
+++ b/modules/change_detection/src/record_range.js
@@ -70,7 +70,6 @@ export class ProtoRecordRange {
       this.headRecord = head;
     } else {
       this.tailRecord.next = head;
-      head.prev = this.tailRecord;
     }
     this.tailRecord = tail;
   }
@@ -514,7 +513,6 @@ class ProtoRecordCreator {
       this.headRecord = this.tailRecord = protoRecord;
     } else {
       this.tailRecord.next = protoRecord;
-      protoRecord.prev = this.tailRecord;
       this.tailRecord = protoRecord;
     }
   }