plugeth-utils/restricted/rlp/unsafe.go
2021-09-13 14:46:29 -05:00

36 lines
1.1 KiB
Go

// Copyright 2021 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
// +build !nacl,!js,cgo
package rlp
import (
"reflect"
"unsafe"
)
// byteArrayBytes returns a slice of the byte array v.
func byteArrayBytes(v reflect.Value) []byte {
len := v.Len()
var s []byte
hdr := (*reflect.SliceHeader)(unsafe.Pointer(&s))
hdr.Data = v.UnsafeAddr()
hdr.Cap = len
hdr.Len = len
return s
}