From 33a0dec8a157b9687ca6038f4deb011f3f1f7bdc Mon Sep 17 00:00:00 2001
From: obscuren <geffobscura@gmail.com>
Date: Mon, 15 Sep 2014 15:42:12 +0200
Subject: Improved catching up and refactored

---
 ethutil/bytes.go | 16 ++++++++++++++++
 ethutil/rlp.go   |  2 ++
 ethutil/set.go   | 16 ++++++++++------
 3 files changed, 28 insertions(+), 6 deletions(-)

(limited to 'ethutil')

diff --git a/ethutil/bytes.go b/ethutil/bytes.go
index e38f89454..f151d16ee 100644
--- a/ethutil/bytes.go
+++ b/ethutil/bytes.go
@@ -9,6 +9,22 @@ import (
 	"strings"
 )
 
+type Bytes []byte
+
+func (self Bytes) String() string {
+	return string(self)
+}
+
+func DeleteFromByteSlice(s [][]byte, hash []byte) [][]byte {
+	for i, h := range s {
+		if bytes.Compare(h, hash) == 0 {
+			return append(s[:i], s[i+1:]...)
+		}
+	}
+
+	return s
+}
+
 // Number to bytes
 //
 // Returns the number in bytes with the specified base
diff --git a/ethutil/rlp.go b/ethutil/rlp.go
index 17ff627eb..febfb78e1 100644
--- a/ethutil/rlp.go
+++ b/ethutil/rlp.go
@@ -124,6 +124,8 @@ func Encode(object interface{}) []byte {
 			} else {
 				buff.Write(Encode(t.Bytes()))
 			}
+		case Bytes:
+			buff.Write(Encode([]byte(t)))
 		case []byte:
 			if len(t) == 1 && t[0] <= 0x7f {
 				buff.Write(t)
diff --git a/ethutil/set.go b/ethutil/set.go
index 80e2edde2..7955edac0 100644
--- a/ethutil/set.go
+++ b/ethutil/set.go
@@ -4,9 +4,13 @@ type Settable interface {
 	AsSet() UniqueSet
 }
 
-type UniqueSet map[interface{}]struct{}
+type Stringable interface {
+	String() string
+}
+
+type UniqueSet map[string]struct{}
 
-func NewSet(v ...interface{}) UniqueSet {
+func NewSet(v ...Stringable) UniqueSet {
 	set := make(UniqueSet)
 	for _, val := range v {
 		set.Insert(val)
@@ -15,14 +19,14 @@ func NewSet(v ...interface{}) UniqueSet {
 	return set
 }
 
-func (self UniqueSet) Insert(k interface{}) UniqueSet {
-	self[k] = struct{}{}
+func (self UniqueSet) Insert(k Stringable) UniqueSet {
+	self[k.String()] = struct{}{}
 
 	return self
 }
 
-func (self UniqueSet) Include(k interface{}) bool {
-	_, ok := self[k]
+func (self UniqueSet) Include(k Stringable) bool {
+	_, ok := self[k.String()]
 
 	return ok
 }
-- 
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