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-rw-r--r--editors/code/src/server.ts96
1 files changed, 0 insertions, 96 deletions
diff --git a/editors/code/src/server.ts b/editors/code/src/server.ts
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1import { homedir } from 'os';
2import * as lc from 'vscode-languageclient';
3
4import { window, workspace } from 'vscode';
5import { Config } from './config';
6
7function expandPathResolving(path: string) {
8 if (path.startsWith('~/')) {
9 return path.replace('~', homedir());
10 }
11 return path;
12}
13
14export class Server {
15 static config: Config;
16 public static client: lc.LanguageClient;
17
18 public static async start(config: Config) {
19 // '.' Is the fallback if no folder is open
20 // TODO?: Workspace folders support Uri's (eg: file://test.txt). It might be a good idea to test if the uri points to a file.
21 let folder: string = '.';
22 if (workspace.workspaceFolders !== undefined) {
23 folder = workspace.workspaceFolders[0].uri.fsPath.toString();
24 }
25
26 this.config = config;
27 const command = expandPathResolving(this.config.raLspServerPath);
28 const run: lc.Executable = {
29 command,
30 options: { cwd: folder },
31 };
32 const serverOptions: lc.ServerOptions = {
33 run,
34 debug: run,
35 };
36 const traceOutputChannel = window.createOutputChannel(
37 'Rust Analyzer Language Server Trace',
38 );
39 const clientOptions: lc.LanguageClientOptions = {
40 documentSelector: [{ scheme: 'file', language: 'rust' }],
41 initializationOptions: {
42 publishDecorations: true,
43 lruCapacity: Server.config.lruCapacity,
44 maxInlayHintLength: Server.config.maxInlayHintLength,
45 cargoWatchEnable: Server.config.cargoWatchOptions.enable,
46 cargoWatchArgs: Server.config.cargoWatchOptions.arguments,
47 cargoWatchCommand: Server.config.cargoWatchOptions.command,
48 cargoWatchAllTargets:
49 Server.config.cargoWatchOptions.allTargets,
50 excludeGlobs: Server.config.excludeGlobs,
51 useClientWatching: Server.config.useClientWatching,
52 featureFlags: Server.config.featureFlags,
53 withSysroot: Server.config.withSysroot,
54 cargoFeatures: Server.config.cargoFeatures,
55 },
56 traceOutputChannel,
57 };
58
59 Server.client = new lc.LanguageClient(
60 'rust-analyzer',
61 'Rust Analyzer Language Server',
62 serverOptions,
63 clientOptions,
64 );
65 // HACK: This is an awful way of filtering out the decorations notifications
66 // However, pending proper support, this is the most effecitve approach
67 // Proper support for this would entail a change to vscode-languageclient to allow not notifying on certain messages
68 // Or the ability to disable the serverside component of highlighting (but this means that to do tracing we need to disable hihlighting)
69 // This also requires considering our settings strategy, which is work which needs doing
70 // @ts-ignore The tracer is private to vscode-languageclient, but we need access to it to not log publishDecorations requests
71 Server.client._tracer = {
72 log: (messageOrDataObject: string | any, data?: string) => {
73 if (typeof messageOrDataObject === 'string') {
74 if (
75 messageOrDataObject.includes(
76 'rust-analyzer/publishDecorations',
77 ) ||
78 messageOrDataObject.includes(
79 'rust-analyzer/decorationsRequest',
80 )
81 ) {
82 // Don't log publish decorations requests
83 } else {
84 // @ts-ignore This is just a utility function
85 Server.client.logTrace(messageOrDataObject, data);
86 }
87 } else {
88 // @ts-ignore
89 Server.client.logObjectTrace(messageOrDataObject);
90 }
91 },
92 };
93 Server.client.registerProposedFeatures();
94 Server.client.start();
95 }
96}