+++ /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"
- "sort"
-
- "golang.org/x/tools/internal/lsp/protocol"
- "golang.org/x/tools/internal/span"
- "golang.org/x/tools/internal/tool"
-)
-
-// references implements the references verb for gopls
-type references struct {
- IncludeDeclaration bool `flag:"d" help:"include the declaration of the specified identifier in the results"`
-
- app *Application
-}
-
-func (r *references) Name() string { return "references" }
-func (r *references) Usage() string { return "<position>" }
-func (r *references) ShortHelp() string { return "display selected identifier's references" }
-func (r *references) DetailedHelp(f *flag.FlagSet) {
- fmt.Fprint(f.Output(), `
-Example:
-
- $ # 1-indexed location (:line:column or :#offset) of the target identifier
- $ gopls references helper/helper.go:8:6
- $ gopls references helper/helper.go:#53
-
- gopls references flags are:
-`)
- f.PrintDefaults()
-}
-
-func (r *references) Run(ctx context.Context, args ...string) error {
- if len(args) != 1 {
- return tool.CommandLineErrorf("references expects 1 argument (position)")
- }
-
- 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.ReferenceParams{
- Context: protocol.ReferenceContext{
- IncludeDeclaration: r.IncludeDeclaration,
- },
- TextDocumentPositionParams: protocol.TextDocumentPositionParams{
- TextDocument: protocol.TextDocumentIdentifier{URI: loc.URI},
- Position: loc.Range.Start,
- },
- }
- locations, err := conn.References(ctx, &p)
- if err != nil {
- return err
- }
- var spans []string
- for _, l := range locations {
- f := conn.AddFile(ctx, fileURI(l.URI))
- // convert location to span for user-friendly 1-indexed line
- // and column numbers
- span, err := f.mapper.Span(l)
- if err != nil {
- return err
- }
- spans = append(spans, fmt.Sprint(span))
- }
-
- sort.Strings(spans)
- for _, s := range spans {
- fmt.Println(s)
- }
- return nil
-}