mirror of
https://github.com/golang/go
synced 2024-10-01 09:28:37 -06:00
4e8ec5a316
Fixes https://github.com/golang/go/issues/32967 Change-Id: I41245582f95f8a31e0d1990eac7aeb2a9c29cf05 GitHub-Last-Rev: 5d257b66138be4b9ea502af89ff48f0574c91718 GitHub-Pull-Request: golang/tools#140 Reviewed-on: https://go-review.googlesource.com/c/tools/+/186997 Run-TryBot: Rebecca Stambler <rstambler@golang.org> Reviewed-by: Rebecca Stambler <rstambler@golang.org>
53 lines
1.2 KiB
Go
53 lines
1.2 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) hover(ctx context.Context, params *protocol.TextDocumentPositionParams) (*protocol.Hover, error) {
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uri := span.NewURI(params.TextDocument.URI)
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view := s.session.ViewOf(uri)
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f, m, err := getGoFile(ctx, view, uri)
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if err != nil {
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return nil, err
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}
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spn, err := m.PointSpan(params.Position)
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if err != nil {
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return nil, err
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}
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identRange, err := spn.Range(m.Converter)
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if err != nil {
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return nil, err
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}
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ident, err := source.Identifier(ctx, view, f, identRange.Start)
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if err != nil {
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return nil, nil
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}
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hover, err := ident.Hover(ctx, s.preferredContentFormat == protocol.Markdown, s.hoverKind)
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if err != nil {
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return nil, err
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}
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identSpan, err := ident.Range.Span()
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if err != nil {
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return nil, err
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}
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rng, err := m.Range(identSpan)
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if err != nil {
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return nil, err
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}
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return &protocol.Hover{
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Contents: protocol.MarkupContent{
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Kind: s.preferredContentFormat,
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Value: hover,
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},
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Range: &rng,
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}, nil
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}
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