47 lines
1.3 KiB
Go
47 lines
1.3 KiB
Go
// Copyright 2014 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/>.
|
|
|
|
package rlp
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
)
|
|
|
|
type MyCoolType struct {
|
|
Name string
|
|
a, b uint
|
|
}
|
|
|
|
// EncodeRLP writes x as RLP list [a, b] that omits the Name field.
|
|
func (x *MyCoolType) EncodeRLP(w io.Writer) (err error) {
|
|
return Encode(w, []uint{x.a, x.b})
|
|
}
|
|
|
|
func ExampleEncoder() {
|
|
var t *MyCoolType // t is nil pointer to MyCoolType
|
|
bytes, _ := EncodeToBytes(t)
|
|
fmt.Printf("%v → %X\n", t, bytes)
|
|
|
|
t = &MyCoolType{Name: "foobar", a: 5, b: 6}
|
|
bytes, _ = EncodeToBytes(t)
|
|
fmt.Printf("%v → %X\n", t, bytes)
|
|
|
|
// Output:
|
|
// <nil> → C0
|
|
// &{foobar 5 6} → C20506
|
|
}
|