mirror of
https://github.com/golang/go
synced 2024-10-01 08:18:32 -06:00
a82abb5396
Now key types can be implemented outside the package that holds labels or events, they should be. This prevents the large list of types from poluting the public interface of the core packages. Change-Id: I927f31cb5e4e1d0c29619681015962f890623e5c Reviewed-on: https://go-review.googlesource.com/c/tools/+/229240 Run-TryBot: Ian Cottrell <iancottrell@google.com> Reviewed-by: Robert Findley <rfindley@google.com>
31 lines
954 B
Go
31 lines
954 B
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"
|
|
|
|
"golang.org/x/tools/internal/event"
|
|
"golang.org/x/tools/internal/lsp/debug/tag"
|
|
"golang.org/x/tools/internal/lsp/protocol"
|
|
"golang.org/x/tools/internal/lsp/source"
|
|
)
|
|
|
|
func (s *Server) signatureHelp(ctx context.Context, params *protocol.SignatureHelpParams) (*protocol.SignatureHelp, error) {
|
|
snapshot, fh, ok, err := s.beginFileRequest(params.TextDocument.URI, source.Go)
|
|
if !ok {
|
|
return nil, err
|
|
}
|
|
info, activeParameter, err := source.SignatureHelp(ctx, snapshot, fh, params.Position)
|
|
if err != nil {
|
|
event.Error(ctx, "no signature help", err, tag.Position.Of(params.Position))
|
|
return nil, nil
|
|
}
|
|
return &protocol.SignatureHelp{
|
|
Signatures: []protocol.SignatureInformation{*info},
|
|
ActiveParameter: float64(activeParameter),
|
|
}, nil
|
|
}
|