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clone.go
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clone.go
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// Copyright 2022 TiKV Project Authors.
//
// 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 typeutil
import (
"reflect"
)
// Codec is the interface representing objects that can marshal and unmarshal themselves.
type Codec interface {
Marshal() (data []byte, err error)
Unmarshal(data []byte) error
}
// DeepClone returns the deep copy of the source
func DeepClone[T Codec](src T, factory func() T) T {
if reflect.ValueOf(src).IsNil() {
var dst T
return dst
}
b, err := src.Marshal()
if err != nil {
var dst T
return dst
}
dst := factory()
dst.Unmarshal(b)
return dst
}