LSP-server-example

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