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https://github.com/golang/go
synced 2024-10-01 07:28:35 -06:00
fef9eaa9e4
The latest version of the LSP protocol introduces a number of changes. It is now possible to indicate partial results and progress. request.ts had to construct some new types (at the end of tsclient.go and tsserver,go) to avoid using a struct for a formal parameter type. Also, instead of using the same type for many RPCs, most RPCs now have their own types. Change-Id: I095a3e872f42a9f851c01ca4e3c6ac6e32446042 Reviewed-on: https://go-review.googlesource.com/c/tools/+/194177 Run-TryBot: Peter Weinberger <pjw@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Cottrell <iancottrell@google.com>
79 lines
2.0 KiB
Go
79 lines
2.0 KiB
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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"encoding/json"
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"fmt"
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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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"golang.org/x/tools/internal/span"
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"golang.org/x/tools/internal/telemetry/log"
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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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uri := span.NewURI(params.TextDocument.URI)
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view := s.session.ViewOf(uri)
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f, err := getGoFile(ctx, view, uri)
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if err != nil {
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return nil, err
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}
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ident, err := source.Identifier(ctx, view, f, params.Position)
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if err != nil {
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return nil, nil
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}
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hover, 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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contents := s.toProtocolHoverContents(ctx, hover)
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return &protocol.Hover{
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Contents: contents,
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Range: &rng,
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}, nil
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}
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func (s *Server) toProtocolHoverContents(ctx context.Context, h *source.HoverInformation) protocol.MarkupContent {
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options := s.session.Options()
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content := protocol.MarkupContent{
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Kind: options.PreferredContentFormat,
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}
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signature := h.Signature
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if content.Kind == protocol.Markdown {
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signature = fmt.Sprintf("```go\n%s\n```", h.Signature)
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}
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switch options.HoverKind {
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case source.SingleLine:
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content.Value = h.SingleLine
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case source.NoDocumentation:
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content.Value = signature
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case source.SynopsisDocumentation:
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if h.Synopsis != "" {
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content.Value = fmt.Sprintf("%s\n%s", h.Synopsis, signature)
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} else {
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content.Value = signature
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}
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case source.FullDocumentation:
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if h.FullDocumentation != "" {
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content.Value = fmt.Sprintf("%s\n%s", signature, h.FullDocumentation)
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} else {
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content.Value = signature
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}
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case source.Structured:
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b, err := json.Marshal(h)
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if err != nil {
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log.Error(ctx, "failed to marshal structured hover", err)
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}
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content.Value = string(b)
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}
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return content
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}
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