mirror of https://github.com/golang/go.git
77 lines
2.0 KiB
Go
77 lines
2.0 KiB
Go
// Copyright 2019 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 lsp
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import (
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"context"
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"golang.org/x/tools/internal/lsp/protocol"
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"golang.org/x/tools/internal/lsp/source"
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"golang.org/x/tools/internal/span"
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)
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func (s *Server) rename(ctx context.Context, params *protocol.RenameParams) (*protocol.WorkspaceEdit, error) {
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uri := span.NewURI(params.TextDocument.URI)
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view, err := s.session.ViewOf(uri)
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if err != nil {
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return nil, err
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}
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snapshot := view.Snapshot()
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fh, err := snapshot.GetFile(uri)
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if err != nil {
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return nil, err
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}
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if fh.Identity().Kind != source.Go {
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return nil, nil
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}
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ident, err := source.Identifier(ctx, snapshot, fh, params.Position, source.WidestPackageHandle)
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if err != nil {
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return nil, nil
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}
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edits, err := ident.Rename(ctx, params.NewName)
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if err != nil {
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return nil, err
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}
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var docChanges []protocol.TextDocumentEdit
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for uri, e := range edits {
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fh, err := snapshot.GetFile(uri)
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if err != nil {
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return nil, err
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}
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docChanges = append(docChanges, documentChanges(fh, e)...)
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}
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return &protocol.WorkspaceEdit{
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DocumentChanges: docChanges,
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}, nil
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}
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func (s *Server) prepareRename(ctx context.Context, params *protocol.PrepareRenameParams) (*protocol.Range, error) {
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uri := span.NewURI(params.TextDocument.URI)
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view, err := s.session.ViewOf(uri)
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if err != nil {
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return nil, err
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}
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snapshot := view.Snapshot()
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fh, err := snapshot.GetFile(uri)
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if err != nil {
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return nil, err
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}
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if fh.Identity().Kind != source.Go {
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return nil, nil
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}
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ident, err := source.Identifier(ctx, snapshot, fh, params.Position, source.WidestPackageHandle)
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if err != nil {
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return nil, nil // ignore errors
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}
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// Do not return errors here, as it adds clutter.
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// Returning a nil result means there is not a valid rename.
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item, err := ident.PrepareRename(ctx)
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if err != nil {
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return nil, nil // ignore errors
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}
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// TODO(suzmue): return ident.Name as the placeholder text.
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return &item.Range, nil
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}
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