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// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package protocol
import (
"encoding/json"
"fmt"
)
// DocumentChanges is a union of a file edit and directory rename operations
// for package renaming feature. At most one field of this struct is non-nil.
type DocumentChanges struct {
TextDocumentEdit *TextDocumentEdit
RenameFile *RenameFile
}
func (d *DocumentChanges) UnmarshalJSON(data []byte) error {
var m map[string]interface{}
if err := json.Unmarshal(data, &m); err != nil {
return err
}
if _, ok := m["textDocument"]; ok {
d.TextDocumentEdit = new(TextDocumentEdit)
return json.Unmarshal(data, d.TextDocumentEdit)
}
d.RenameFile = new(RenameFile)
return json.Unmarshal(data, d.RenameFile)
}
func (d *DocumentChanges) MarshalJSON() ([]byte, error) {
if d.TextDocumentEdit != nil {
return json.Marshal(d.TextDocumentEdit)
} else if d.RenameFile != nil {
return json.Marshal(d.RenameFile)
}
return nil, fmt.Errorf("Empty DocumentChanges union value")
}
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