fix: add description

trie/committer.go

@@ -175,7 +175,7 @@ func (c *committer) store(path []byte, n node) node {
 		// deleted only if the node was existent in database before.
 		prev, ok := c.tracer.accessList[string(path)]
 		if ok {
-			c.nodes.addNode([]byte(path), &nodeWithPrev{&memoryNode{}, prev})
+			c.nodes.addNode(path, &nodeWithPrev{&memoryNode{}, prev})
 		}
 		return n
 	}

trie/tracer_test.go

@@ -326,6 +326,7 @@ func forHashedNodes(tr *Trie) map[string][]byte {
 	return nodes
 }
 
+// diffTries return the diff and shared nodes between 2 tries
 func diffTries(trieA, trieB *Trie) (map[string][]byte, map[string][]byte, map[string][]byte) {
 	var (
 		nodesA = forHashedNodes(trieA)

trie/trie_test.go

@@ -420,6 +420,7 @@ func (randTest) Generate(r *rand.Rand, size int) reflect.Value {
 	return reflect.ValueOf(steps)
 }
 
+// verifyAccessList verifies the access list of the new trie against the old trie.
 func verifyAccessList(old *Trie, new *Trie, set *NodeSet) error {
 	deletes, inserts, updates := diffTries(old, new)