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go/internal/lsp/link.go
Ian Cottrell 7927dbab1b internal/lsp: build the packages config on demand from proper configuration
This moves the fileset down to the base cache, the overlays down to the session
and stores the environment on the view.
packages.Config is no longer part of any public API, and the config is build on
demand by combining all the layers of cache.
Also added some documentation to the main source pacakge interfaces.

Change-Id: I058092ad2275d433864d1f58576fc55e194607a6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/178017
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-05-21 17:12:43 +00:00

50 lines
1.2 KiB
Go

// Copyright 2018 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"
"strconv"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/span"
)
func (s *Server) documentLink(ctx context.Context, params *protocol.DocumentLinkParams) ([]protocol.DocumentLink, error) {
uri := span.NewURI(params.TextDocument.URI)
view := s.session.ViewOf(uri)
f, m, err := getGoFile(ctx, view, uri)
if err != nil {
return nil, err
}
file := f.GetAST(ctx)
if file == nil {
return nil, fmt.Errorf("no AST for %v", uri)
}
// Add a Godoc link for each imported package.
var result []protocol.DocumentLink
for _, imp := range file.Imports {
spn, err := span.NewRange(f.FileSet(), imp.Pos(), imp.End()).Span()
if err != nil {
return nil, err
}
rng, err := m.Range(spn)
if err != nil {
return nil, err
}
target, err := strconv.Unquote(imp.Path.Value)
if err != nil {
continue
}
target = "https://godoc.org/" + target
result = append(result, protocol.DocumentLink{
Range: rng,
Target: target,
})
}
return result, nil
}