mirror of https://github.com/golang/go.git
43 lines
1003 B
Go
43 lines
1003 B
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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)
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func (s *Server) hover(ctx context.Context, params *protocol.HoverParams) (*protocol.Hover, error) {
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snapshot, fh, ok, err := s.beginFileRequest(params.TextDocument.URI, source.Go)
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if !ok {
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return nil, err
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}
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ident, err := source.Identifier(ctx, snapshot, fh, params.Position)
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if err != nil {
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return nil, nil
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}
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h, err := ident.Hover(ctx)
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if err != nil {
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return nil, err
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}
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rng, err := ident.Range()
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if err != nil {
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return nil, err
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}
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hover, err := source.FormatHover(h, snapshot.View().Options())
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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: snapshot.View().Options().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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