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go/internal/lsp/highlight.go
Rebecca Stambler 4a54ec1d38 internal/lsp: remove view.FindPosInPackage and view.FindMapperInPackage
There is no reason for these functions to live on the view. They make
more sense as unexported functions in internal/lsp/source.

Initially, I had to propagate contexts through a lot of functions in
internal/lsp/source, but instead I removed the unused contexts forom
snapshot.GetFile.

Change-Id: I8323419d0356feb2010091fe8d3ed35e511f801a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214384
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-13 18:51:11 +00:00

53 lines
1.3 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"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/lsp/telemetry"
"golang.org/x/tools/internal/span"
"golang.org/x/tools/internal/telemetry/log"
)
func (s *Server) documentHighlight(ctx context.Context, params *protocol.DocumentHighlightParams) ([]protocol.DocumentHighlight, error) {
uri := span.NewURI(params.TextDocument.URI)
view, err := s.session.ViewOf(uri)
if err != nil {
return nil, err
}
snapshot := view.Snapshot()
fh, err := snapshot.GetFile(uri)
if err != nil {
return nil, err
}
var rngs []protocol.Range
switch fh.Identity().Kind {
case source.Go:
rngs, err = source.Highlight(ctx, snapshot, fh, params.Position)
case source.Mod:
return nil, nil
}
if err != nil {
log.Error(ctx, "no highlight", err, telemetry.URI.Of(uri))
}
return toProtocolHighlight(rngs), nil
}
func toProtocolHighlight(rngs []protocol.Range) []protocol.DocumentHighlight {
result := make([]protocol.DocumentHighlight, 0, len(rngs))
kind := protocol.Text
for _, rng := range rngs {
result = append(result, protocol.DocumentHighlight{
Kind: kind,
Range: rng,
})
}
return result
}