blob: 96f3f4f25ab09a77bcade384237a6865f29f429c [file] [log] [blame]
// Copyright 2019 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 lsp
import (
"context"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/span"
)
func (s *Server) rename(ctx context.Context, params *protocol.RenameParams) (*protocol.WorkspaceEdit, error) {
uri := span.NewURI(params.TextDocument.URI)
view, err := s.session.ViewOf(uri)
if err != nil {
return nil, err
}
snapshot := view.Snapshot()
f, err := view.GetFile(ctx, uri)
if err != nil {
return nil, err
}
if f.Kind() != source.Go {
return nil, nil
}
ident, err := source.Identifier(ctx, snapshot, f, params.Position, source.WidestCheckPackageHandle)
if err != nil {
return nil, nil
}
edits, err := ident.Rename(ctx, params.NewName)
if err != nil {
return nil, err
}
var docChanges []protocol.TextDocumentEdit
for uri, e := range edits {
f, err := view.GetFile(ctx, uri)
if err != nil {
return nil, err
}
fh := ident.Snapshot.Handle(ctx, f)
docChanges = append(docChanges, documentChanges(fh, e)...)
}
return &protocol.WorkspaceEdit{
DocumentChanges: docChanges,
}, nil
}
func (s *Server) prepareRename(ctx context.Context, params *protocol.PrepareRenameParams) (*protocol.Range, error) {
uri := span.NewURI(params.TextDocument.URI)
view, err := s.session.ViewOf(uri)
if err != nil {
return nil, err
}
snapshot := view.Snapshot()
f, err := view.GetFile(ctx, uri)
if err != nil {
return nil, err
}
if f.Kind() != source.Go {
return nil, nil
}
ident, err := source.Identifier(ctx, snapshot, f, params.Position, source.WidestCheckPackageHandle)
if err != nil {
return nil, nil // ignore errors
}
// Do not return errors here, as it adds clutter.
// Returning a nil result means there is not a valid rename.
item, err := ident.PrepareRename(ctx)
if err != nil {
return nil, nil // ignore errors
}
// TODO(suzmue): return ident.Name as the placeholder text.
return &item.Range, nil
}