+++ /dev/null
-// 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 cmd
-
-import (
- "context"
- "flag"
- "fmt"
-
- "golang.org/x/tools/internal/lsp/protocol"
- "golang.org/x/tools/internal/span"
- "golang.org/x/tools/internal/tool"
- errors "golang.org/x/xerrors"
-)
-
-// prepareRename implements the prepare_rename verb for gopls.
-type prepareRename struct {
- app *Application
-}
-
-func (r *prepareRename) Name() string { return "prepare_rename" }
-func (r *prepareRename) Usage() string { return "<position>" }
-func (r *prepareRename) ShortHelp() string { return "test validity of a rename operation at location" }
-func (r *prepareRename) DetailedHelp(f *flag.FlagSet) {
- fmt.Fprint(f.Output(), `
-Example:
-
- $ # 1-indexed location (:line:column or :#offset) of the target identifier
- $ gopls prepare_rename helper/helper.go:8:6
- $ gopls prepare_rename helper/helper.go:#53
-
- gopls prepare_rename flags are:
-`)
- f.PrintDefaults()
-}
-
-// ErrInvalidRenamePosition is returned when prepareRename is run at a position that
-// is not a candidate for renaming.
-var ErrInvalidRenamePosition = errors.New("request is not valid at the given position")
-
-func (r *prepareRename) Run(ctx context.Context, args ...string) error {
- if len(args) != 1 {
- return tool.CommandLineErrorf("prepare_rename expects 1 argument (file)")
- }
-
- conn, err := r.app.connect(ctx)
- if err != nil {
- return err
- }
- defer conn.terminate(ctx)
-
- from := span.Parse(args[0])
- file := conn.AddFile(ctx, from.URI())
- if file.err != nil {
- return file.err
- }
- loc, err := file.mapper.Location(from)
- if err != nil {
- return err
- }
- p := protocol.PrepareRenameParams{
- TextDocumentPositionParams: protocol.TextDocumentPositionParams{
- TextDocument: protocol.TextDocumentIdentifier{URI: loc.URI},
- Position: loc.Range.Start,
- },
- }
- result, err := conn.PrepareRename(ctx, &p)
- if err != nil {
- return errors.Errorf("prepare_rename failed: %w", err)
- }
- if result == nil {
- return ErrInvalidRenamePosition
- }
-
- l := protocol.Location{Range: *result}
- s, err := file.mapper.Span(l)
- if err != nil {
- return err
- }
-
- fmt.Println(s)
- return nil
-}