mirror of
https://github.com/golang/go.git
synced 2025-05-05 15:43:04 +00:00
4796d4bd3d
This change associates an ast.Node for some object declarations. In this case, we only handle type declarations, but future changes will support other objects as well. This is the first step in adding documentation on hover. Updates golang/go#29151 Change-Id: I39ddccf4130ee3b106725286375cd74bc51bcd38 Reviewed-on: https://go-review.googlesource.com/c/tools/+/172661 Run-TryBot: Rebecca Stambler <rstambler@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Cottrell <iancottrell@google.com>
68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
// 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"
|
|
"fmt"
|
|
|
|
"golang.org/x/tools/internal/lsp/protocol"
|
|
"golang.org/x/tools/internal/lsp/source"
|
|
"golang.org/x/tools/internal/span"
|
|
)
|
|
|
|
func (s *Server) hover(ctx context.Context, params *protocol.TextDocumentPositionParams) (*protocol.Hover, error) {
|
|
uri := span.NewURI(params.TextDocument.URI)
|
|
view := s.findView(ctx, uri)
|
|
f, m, err := newColumnMap(ctx, view, uri)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
spn, err := m.PointSpan(params.Position)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
identRange, err := spn.Range(m.Converter)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
ident, err := source.Identifier(ctx, view, f, identRange.Start)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
decl, doc, err := ident.Hover(ctx, nil, s.enhancedHover)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
identSpan, err := ident.Range.Span()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
rng, err := m.Range(identSpan)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &protocol.Hover{
|
|
Contents: markupContent(decl, doc, s.preferredContentFormat),
|
|
Range: &rng,
|
|
}, nil
|
|
}
|
|
|
|
func markupContent(decl, doc string, kind protocol.MarkupKind) protocol.MarkupContent {
|
|
result := protocol.MarkupContent{
|
|
Kind: kind,
|
|
}
|
|
switch kind {
|
|
case protocol.PlainText:
|
|
result.Value = decl
|
|
case protocol.Markdown:
|
|
result.Value = "```go\n" + decl + "\n```"
|
|
}
|
|
if doc != "" {
|
|
result.Value = fmt.Sprintf("%s\n%s", doc, result.Value)
|
|
}
|
|
return result
|
|
}
|