44 lines
1.2 KiB
Go
44 lines
1.2 KiB
Go
/*
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Copyright 2015 Google Inc. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package conversion
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import (
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"bytes"
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"encoding/gob"
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"reflect"
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)
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// DeepCopy makes a deep copy of source. Won't work for any private fields!
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// For nil slices, will return 0-length slices. These are equivilent in
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// basically every way except for the way that reflect.DeepEqual checks.
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func DeepCopy(source interface{}) (interface{}, error) {
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v := reflect.New(reflect.TypeOf(source))
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buff := &bytes.Buffer{}
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enc := gob.NewEncoder(buff)
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dec := gob.NewDecoder(buff)
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err := enc.Encode(source)
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if err != nil {
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return nil, err
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}
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err = dec.Decode(v.Interface())
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if err != nil {
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return nil, err
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}
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return v.Elem().Interface(), nil
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}
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