Moved ethutil => common

1 files changed, 0 insertions, 276 deletions

diff --git a/ethutil/rlp.go b/ethutil/rlp.go
deleted file mode 100644
index 0cb0d611c..000000000
--- a/ethutil/rlp.go
+++ /dev/null
@@ -1,276 +0,0 @@
-package ethutil
-
-import (
-	"bytes"
-	"fmt"
-	"math/big"
-	"reflect"
-)
-
-type RlpEncode interface {
-	RlpEncode() []byte
-}
-
-type RlpEncodeDecode interface {
-	RlpEncode
-	RlpValue() []interface{}
-}
-
-type RlpEncodable interface {
-	RlpData() interface{}
-}
-
-func Rlp(encoder RlpEncode) []byte {
-	return encoder.RlpEncode()
-}
-
-type RlpEncoder struct {
-	rlpData []byte
-}
-
-func NewRlpEncoder() *RlpEncoder {
-	encoder := &RlpEncoder{}
-
-	return encoder
-}
-func (coder *RlpEncoder) EncodeData(rlpData interface{}) []byte {
-	return Encode(rlpData)
-}
-
-const (
-	RlpEmptyList = 0x80
-	RlpEmptyStr  = 0x40
-)
-
-const rlpEof = -1
-
-func Char(c []byte) int {
-	if len(c) > 0 {
-		return int(c[0])
-	}
-
-	return rlpEof
-}
-
-func DecodeWithReader(reader *bytes.Buffer) interface{} {
-	var slice []interface{}
-
-	// Read the next byte
-	char := Char(reader.Next(1))
-	switch {
-	case char <= 0x7f:
-		return char
-
-	case char <= 0xb7:
-		return reader.Next(int(char - 0x80))
-
-	case char <= 0xbf:
-		length := ReadVarInt(reader.Next(int(char - 0xb7)))
-
-		return reader.Next(int(length))
-
-	case char <= 0xf7:
-		length := int(char - 0xc0)
-		for i := 0; i < length; i++ {
-			obj := DecodeWithReader(reader)
-			slice = append(slice, obj)
-		}
-
-		return slice
-	case char <= 0xff:
-		length := ReadVarInt(reader.Next(int(char - 0xf7)))
-		for i := uint64(0); i < length; i++ {
-			obj := DecodeWithReader(reader)
-			slice = append(slice, obj)
-		}
-
-		return slice
-	default:
-		panic(fmt.Sprintf("byte not supported: %q", char))
-	}
-
-	return slice
-}
-
-var (
-	directRlp = big.NewInt(0x7f)
-	numberRlp = big.NewInt(0xb7)
-	zeroRlp   = big.NewInt(0x0)
-)
-
-func intlen(i int64) (length int) {
-	for i > 0 {
-		i = i >> 8
-		length++
-	}
-	return
-}
-
-func Encode(object interface{}) []byte {
-	var buff bytes.Buffer
-
-	if object != nil {
-		switch t := object.(type) {
-		case *Value:
-			buff.Write(Encode(t.Raw()))
-		case RlpEncodable:
-			buff.Write(Encode(t.RlpData()))
-		// Code dup :-/
-		case int:
-			buff.Write(Encode(big.NewInt(int64(t))))
-		case uint:
-			buff.Write(Encode(big.NewInt(int64(t))))
-		case int8:
-			buff.Write(Encode(big.NewInt(int64(t))))
-		case int16:
-			buff.Write(Encode(big.NewInt(int64(t))))
-		case int32:
-			buff.Write(Encode(big.NewInt(int64(t))))
-		case int64:
-			buff.Write(Encode(big.NewInt(t)))
-		case uint16:
-			buff.Write(Encode(big.NewInt(int64(t))))
-		case uint32:
-			buff.Write(Encode(big.NewInt(int64(t))))
-		case uint64:
-			buff.Write(Encode(big.NewInt(int64(t))))
-		case byte:
-			buff.Write(Encode(big.NewInt(int64(t))))
-		case *big.Int:
-			// Not sure how this is possible while we check for nil
-			if t == nil {
-				buff.WriteByte(0xc0)
-			} 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)
-			} else if len(t) < 56 {
-				buff.WriteByte(byte(len(t) + 0x80))
-				buff.Write(t)
-			} else {
-				b := big.NewInt(int64(len(t)))
-				buff.WriteByte(byte(len(b.Bytes()) + 0xb7))
-				buff.Write(b.Bytes())
-				buff.Write(t)
-			}
-		case string:
-			buff.Write(Encode([]byte(t)))
-		case []interface{}:
-			// Inline function for writing the slice header
-			WriteSliceHeader := func(length int) {
-				if length < 56 {
-					buff.WriteByte(byte(length + 0xc0))
-				} else {
-					b := big.NewInt(int64(length))
-					buff.WriteByte(byte(len(b.Bytes()) + 0xf7))
-					buff.Write(b.Bytes())
-				}
-			}
-
-			var b bytes.Buffer
-			for _, val := range t {
-				b.Write(Encode(val))
-			}
-			WriteSliceHeader(len(b.Bytes()))
-			buff.Write(b.Bytes())
-		default:
-			// This is how it should have been from the start
-			// needs refactoring (@fjl)
-			v := reflect.ValueOf(t)
-			switch v.Kind() {
-			case reflect.Slice:
-				var b bytes.Buffer
-				for i := 0; i < v.Len(); i++ {
-					b.Write(Encode(v.Index(i).Interface()))
-				}
-
-				blen := b.Len()
-				if blen < 56 {
-					buff.WriteByte(byte(blen) + 0xc0)
-				} else {
-					ilen := byte(intlen(int64(blen)))
-					buff.WriteByte(ilen + 0xf7)
-					t := make([]byte, ilen)
-					for i := byte(0); i < ilen; i++ {
-						t[ilen-i-1] = byte(blen >> (i * 8))
-					}
-					buff.Write(t)
-				}
-				buff.ReadFrom(&b)
-			}
-		}
-	} else {
-		// Empty list for nil
-		buff.WriteByte(0xc0)
-	}
-
-	return buff.Bytes()
-}
-
-// TODO Use a bytes.Buffer instead of a raw byte slice.
-// Cleaner code, and use draining instead of seeking the next bytes to read
-func Decode(data []byte, pos uint64) (interface{}, uint64) {
-	var slice []interface{}
-	char := int(data[pos])
-	switch {
-	case char <= 0x7f:
-		return data[pos], pos + 1
-
-	case char <= 0xb7:
-		b := uint64(data[pos]) - 0x80
-
-		return data[pos+1 : pos+1+b], pos + 1 + b
-
-	case char <= 0xbf:
-		b := uint64(data[pos]) - 0xb7
-
-		b2 := ReadVarInt(data[pos+1 : pos+1+b])
-
-		return data[pos+1+b : pos+1+b+b2], pos + 1 + b + b2
-
-	case char <= 0xf7:
-		b := uint64(data[pos]) - 0xc0
-		prevPos := pos
-		pos++
-		for i := uint64(0); i < b; {
-			var obj interface{}
-
-			// Get the next item in the data list and append it
-			obj, prevPos = Decode(data, pos)
-			slice = append(slice, obj)
-
-			// Increment i by the amount bytes read in the previous
-			// read
-			i += (prevPos - pos)
-			pos = prevPos
-		}
-		return slice, pos
-
-	case char <= 0xff:
-		l := uint64(data[pos]) - 0xf7
-		b := ReadVarInt(data[pos+1 : pos+1+l])
-
-		pos = pos + l + 1
-
-		prevPos := b
-		for i := uint64(0); i < uint64(b); {
-			var obj interface{}
-
-			obj, prevPos = Decode(data, pos)
-			slice = append(slice, obj)
-
-			i += (prevPos - pos)
-			pos = prevPos
-		}
-		return slice, pos
-
-	default:
-		panic(fmt.Sprintf("byte not supported: %q", char))
-	}
-
-	return slice, 0
-}