From 0a1ff68c11706f60355b392cb16a681630260ac3 Mon Sep 17 00:00:00 2001
From: Jeffrey Wilcke <geffobscura@gmail.com>
Date: Wed, 1 Jul 2015 15:38:32 +0200
Subject: trie: dirty tracking

---
 trie/valuenode.go | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

(limited to 'trie/valuenode.go')

diff --git a/trie/valuenode.go b/trie/valuenode.go
index 7bf8ff06e..6adb59652 100644
--- a/trie/valuenode.go
+++ b/trie/valuenode.go
@@ -3,13 +3,24 @@ package trie
 import "github.com/ethereum/go-ethereum/common"
 
 type ValueNode struct {
-	trie *Trie
-	data []byte
+	trie  *Trie
+	data  []byte
+	dirty bool
 }
 
-func (self *ValueNode) Value() Node          { return self } // Best not to call :-)
-func (self *ValueNode) Val() []byte          { return self.data }
-func (self *ValueNode) Dirty() bool          { return true }
-func (self *ValueNode) Copy(t *Trie) Node    { return &ValueNode{t, common.CopyBytes(self.data)} }
+func NewValueNode(trie *Trie, data []byte) *ValueNode {
+	return &ValueNode{trie, data, false}
+}
+
+func (self *ValueNode) Value() Node { return self } // Best not to call :-)
+func (self *ValueNode) Val() []byte { return self.data }
+func (self *ValueNode) Dirty() bool { return self.dirty }
+func (self *ValueNode) Copy(t *Trie) Node {
+	return &ValueNode{t, common.CopyBytes(self.data), self.dirty}
+}
 func (self *ValueNode) RlpData() interface{} { return self.data }
 func (self *ValueNode) Hash() interface{}    { return self.data }
+
+func (self *ValueNode) setDirty(dirty bool) {
+	self.dirty = dirty
+}
-- 
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