// Copyright (C) 2014 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package binary

import "io"

// Data is an codable byte buffer.
type Data []byte

func (data Data) Encode(e *Encoder) error {
	if err := e.Uint32(uint32(len(data))); err != nil {
		return err
	}
	return e.WriteFull(data)
}

func (data *Data) Decode(d *Decoder) error {
	c, err := d.Uint32()
	if err != nil {
		return err
	}
	*data = make([]byte, c)
	_, err = io.ReadFull(d.reader, *data)
	return err
}