mirror of
https://github.com/golang/go
synced 2024-11-18 14:54:40 -07:00
e56429333a
The definition command-line interface doesn't match the rest of the commands, because I think we originally wanted to make them all subcommands of "gopls query". Remove this, since it's no longer in use. Change-Id: Iee923db6328774f787d539931001e438d1a2ae6e Reviewed-on: https://go-review.googlesource.com/c/tools/+/230299 Run-TryBot: Rebecca Stambler <rstambler@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Heschi Kreinick <heschi@google.com>
91 lines
2.1 KiB
Go
91 lines
2.1 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 cmd
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import (
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"context"
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"flag"
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"fmt"
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"sort"
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"golang.org/x/tools/internal/lsp/protocol"
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"golang.org/x/tools/internal/span"
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"golang.org/x/tools/internal/tool"
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)
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// highlight implements the highlight verb for gopls.
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type highlight struct {
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app *Application
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}
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func (r *highlight) Name() string { return "highlight" }
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func (r *highlight) Usage() string { return "<position>" }
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func (r *highlight) ShortHelp() string { return "display selected identifier's highlights" }
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func (r *highlight) DetailedHelp(f *flag.FlagSet) {
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fmt.Fprint(f.Output(), `
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Example:
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$ # 1-indexed location (:line:column or :#offset) of the target identifier
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$ gopls highlight helper/helper.go:8:6
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$ gopls highlight helper/helper.go:#53
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gopls highlight flags are:
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`)
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f.PrintDefaults()
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}
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func (r *highlight) Run(ctx context.Context, args ...string) error {
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if len(args) != 1 {
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return tool.CommandLineErrorf("highlight expects 1 argument (position)")
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}
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conn, err := r.app.connect(ctx)
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if err != nil {
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return err
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}
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defer conn.terminate(ctx)
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from := span.Parse(args[0])
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file := conn.AddFile(ctx, from.URI())
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if file.err != nil {
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return file.err
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}
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loc, err := file.mapper.Location(from)
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if err != nil {
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return err
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}
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p := protocol.DocumentHighlightParams{
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TextDocumentPositionParams: protocol.TextDocumentPositionParams{
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TextDocument: protocol.TextDocumentIdentifier{URI: loc.URI},
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Position: loc.Range.Start,
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},
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}
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highlights, err := conn.DocumentHighlight(ctx, &p)
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if err != nil {
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return err
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}
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var results []span.Span
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for _, h := range highlights {
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l := protocol.Location{Range: h.Range}
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s, err := file.mapper.Span(l)
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if err != nil {
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return err
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}
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results = append(results, s)
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}
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// Sort results to make tests deterministic since DocumentHighlight uses a map.
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sort.SliceStable(results, func(i, j int) bool {
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return span.Compare(results[i], results[j]) == -1
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})
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for _, s := range results {
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fmt.Println(s)
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}
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return nil
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}
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