1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
// 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 implements LSP for gopls.
package lsp
import (
"context"
"fmt"
"sync"
"golang.org/x/tools/internal/jsonrpc2"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/span"
errors "golang.org/x/xerrors"
)
const concurrentAnalyses = 1
// NewServer creates an LSP server and binds it to handle incoming client
// messages on on the supplied stream.
func NewServer(session source.Session, client protocol.Client) *Server {
return &Server{
diagnostics: map[span.URI]*fileReports{},
gcOptimizationDetails: make(map[span.URI]struct{}),
watchedGlobPatterns: make(map[string]struct{}),
changedFiles: make(map[span.URI]struct{}),
session: session,
client: client,
diagnosticsSema: make(chan struct{}, concurrentAnalyses),
progress: newProgressTracker(client),
debouncer: newDebouncer(),
}
}
type serverState int
const (
serverCreated = serverState(iota)
serverInitializing // set once the server has received "initialize" request
serverInitialized // set once the server has received "initialized" request
serverShutDown
)
func (s serverState) String() string {
switch s {
case serverCreated:
return "created"
case serverInitializing:
return "initializing"
case serverInitialized:
return "initialized"
case serverShutDown:
return "shutDown"
}
return fmt.Sprintf("(unknown state: %d)", int(s))
}
// Server implements the protocol.Server interface.
type Server struct {
client protocol.Client
stateMu sync.Mutex
state serverState
session source.Session
clientPID int
// notifications generated before serverInitialized
notifications []*protocol.ShowMessageParams
// changedFiles tracks files for which there has been a textDocument/didChange.
changedFilesMu sync.Mutex
changedFiles map[span.URI]struct{}
// folders is only valid between initialize and initialized, and holds the
// set of folders to build views for when we are ready
pendingFolders []protocol.WorkspaceFolder
// watchedGlobPatterns is the set of glob patterns that we have requested
// the client watch on disk. It will be updated as the set of directories
// that the server should watch changes.
watchedGlobPatternsMu sync.Mutex
watchedGlobPatterns map[string]struct{}
watchRegistrationCount int
diagnosticsMu sync.Mutex
diagnostics map[span.URI]*fileReports
// gcOptimizationDetails describes the packages for which we want
// optimization details to be included in the diagnostics. The key is the
// directory of the package.
gcOptimizationDetailsMu sync.Mutex
gcOptimizationDetails map[span.URI]struct{}
// diagnosticsSema limits the concurrency of diagnostics runs, which can be
// expensive.
diagnosticsSema chan struct{}
progress *progressTracker
// debouncer is used for debouncing diagnostics.
debouncer *debouncer
// When the workspace fails to load, we show its status through a progress
// report with an error message.
criticalErrorStatusMu sync.Mutex
criticalErrorStatus *workDone
}
func (s *Server) workDoneProgressCancel(ctx context.Context, params *protocol.WorkDoneProgressCancelParams) error {
return s.progress.cancel(ctx, params.Token)
}
func (s *Server) nonstandardRequest(ctx context.Context, method string, params interface{}) (interface{}, error) {
switch method {
case "gopls/diagnoseFiles":
paramMap := params.(map[string]interface{})
for _, file := range paramMap["files"].([]interface{}) {
snapshot, fh, ok, release, err := s.beginFileRequest(ctx, protocol.DocumentURI(file.(string)), source.UnknownKind)
defer release()
if !ok {
return nil, err
}
fileID, diagnostics, err := source.FileDiagnostics(ctx, snapshot, fh.URI())
if err != nil {
return nil, err
}
if err := s.client.PublishDiagnostics(ctx, &protocol.PublishDiagnosticsParams{
URI: protocol.URIFromSpanURI(fh.URI()),
Diagnostics: toProtocolDiagnostics(diagnostics),
Version: fileID.Version,
}); err != nil {
return nil, err
}
}
if err := s.client.PublishDiagnostics(ctx, &protocol.PublishDiagnosticsParams{
URI: "gopls://diagnostics-done",
}); err != nil {
return nil, err
}
return struct{}{}, nil
}
return nil, notImplemented(method)
}
func notImplemented(method string) error {
return errors.Errorf("%w: %q not yet implemented", jsonrpc2.ErrMethodNotFound, method)
}
//go:generate helper/helper -d protocol/tsserver.go -o server_gen.go -u .
|
