trie: avoid unnecessary slicing on shortnode decoding (#16917)

optimization code
2018-06-07 11:48:36 +03:00
parent feb6620c34
commit ea06da0892
1 changed files with 3 additions and 4 deletions
@@ -53,10 +53,9 @@ func hexToCompact(hex []byte) []byte {

 func compactToHex(compact []byte) []byte {
 	base := keybytesToHex(compact)
-	base = base[:len(base)-1]
-	// apply terminator flag
-	if base[0] >= 2 {
-		base = append(base, 16)
+	// delete terminator flag
+	if base[0] < 2 {
+		base = base[:len(base)-1]
 	}
 	// apply odd flag
 	chop := 2 - base[0]&1