pull lsp client out into a fake module (#2846)
* initial commit Signed-off-by: Jess Frazelle <github@jessfraz.com> tsc passing Signed-off-by: Jess Frazelle <github@jessfraz.com> fixes Signed-off-by: Jess Frazelle <github@jessfraz.com> fixes Signed-off-by: Jess Frazelle <github@jessfraz.com> working Signed-off-by: Jess Frazelle <github@jessfraz.com> fixups Signed-off-by: Jess Frazelle <github@jessfraz.com> updates Signed-off-by: Jess Frazelle <github@jessfraz.com> fixes Signed-off-by: Jess Frazelle <github@jessfraz.com> fixes Signed-off-by: Jess Frazelle <github@jessfraz.com> fmt Signed-off-by: Jess Frazelle <github@jessfraz.com> * cleanups Signed-off-by: Jess Frazelle <github@jessfraz.com> * fixes Signed-off-by: Jess Frazelle <github@jessfraz.com> * udpates Signed-off-by: Jess Frazelle <github@jessfraz.com> * updates Signed-off-by: Jess Frazelle <github@jessfraz.com> * cleanup Signed-off-by: Jess Frazelle <github@jessfraz.com> * cleanup Signed-off-by: Jess Frazelle <github@jessfraz.com> * fixes Signed-off-by: Jess Frazelle <github@jessfraz.com> * updates Signed-off-by: Jess Frazelle <github@jessfraz.com> --------- Signed-off-by: Jess Frazelle <github@jessfraz.com>
This commit is contained in:
Jess Frazelle
GitHub
208
packages/codemirror-lsp-client/src/client/jsonrpc.ts
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208
packages/codemirror-lsp-client/src/client/jsonrpc.ts
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@ -0,0 +1,208 @@
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import * as jsrpc from 'json-rpc-2.0'
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import * as LSP from 'vscode-languageserver-protocol'
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import {
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registerServerCapability,
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unregisterServerCapability,
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} from './server-capability-registration'
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import { Codec, FromServer, IntoServer } from './codec'
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const client_capabilities: LSP.ClientCapabilities = {
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textDocument: {
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hover: {
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dynamicRegistration: true,
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contentFormat: ['plaintext', 'markdown'],
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},
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moniker: {},
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synchronization: {
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dynamicRegistration: true,
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willSave: false,
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didSave: false,
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willSaveWaitUntil: false,
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},
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completion: {
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dynamicRegistration: true,
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completionItem: {
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snippetSupport: false,
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commitCharactersSupport: true,
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documentationFormat: ['plaintext', 'markdown'],
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deprecatedSupport: false,
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preselectSupport: false,
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},
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contextSupport: false,
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},
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signatureHelp: {
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dynamicRegistration: true,
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signatureInformation: {
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documentationFormat: ['plaintext', 'markdown'],
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},
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},
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declaration: {
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dynamicRegistration: true,
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linkSupport: true,
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},
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definition: {
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dynamicRegistration: true,
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linkSupport: true,
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},
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typeDefinition: {
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dynamicRegistration: true,
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linkSupport: true,
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},
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implementation: {
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dynamicRegistration: true,
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linkSupport: true,
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},
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},
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workspace: {
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didChangeConfiguration: {
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dynamicRegistration: true,
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},
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},
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}
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export default class Client extends jsrpc.JSONRPCServerAndClient {
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afterInitializedHooks: (() => Promise<void>)[] = []
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#fromServer: FromServer
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private serverCapabilities: LSP.ServerCapabilities<any> = {}
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private notifyFn: ((message: LSP.NotificationMessage) => void) | null = null
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private initializedCallback: () => void
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constructor(
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fromServer: FromServer,
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intoServer: IntoServer,
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initializedCallback: () => void
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) {
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super(
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new jsrpc.JSONRPCServer(),
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new jsrpc.JSONRPCClient(async (json: jsrpc.JSONRPCRequest) => {
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const encoded = Codec.encode(json)
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intoServer.enqueue(encoded)
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if (null != json.id) {
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// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
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const response = await fromServer.responses.get(json.id)
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this.client.receive(response as jsrpc.JSONRPCResponse)
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}
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})
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)
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this.#fromServer = fromServer
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this.initializedCallback = initializedCallback
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}
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async start(): Promise<void> {
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// process "window/logMessage": client <- server
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this.addMethod(LSP.LogMessageNotification.type.method, (params) => {
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const { type, message } = params as {
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type: LSP.MessageType
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message: string
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}
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let messageString = ''
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switch (type) {
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case LSP.MessageType.Error: {
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messageString += '[error] '
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break
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}
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case LSP.MessageType.Warning: {
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messageString += ' [warn] '
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break
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}
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case LSP.MessageType.Info: {
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messageString += ' [info] '
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break
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}
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case LSP.MessageType.Log: {
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messageString += ' [log] '
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break
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}
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}
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// eslint-disable-next-line @typescript-eslint/no-unused-vars
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messageString += message
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return
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})
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// process "client/registerCapability": client <- server
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this.addMethod(LSP.RegistrationRequest.type.method, (params) => {
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// Register a server capability.
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params.registrations.forEach(
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(capabilityRegistration: LSP.Registration) => {
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const caps = registerServerCapability(
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this.serverCapabilities,
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capabilityRegistration
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)
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if (caps instanceof Error) {
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return (this.serverCapabilities = {})
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}
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this.serverCapabilities = caps
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}
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)
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})
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// process "client/unregisterCapability": client <- server
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this.addMethod(LSP.UnregistrationRequest.type.method, (params) => {
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// Unregister a server capability.
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params.unregisterations.forEach(
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(capabilityUnregistration: LSP.Unregistration) => {
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const caps = unregisterServerCapability(
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this.serverCapabilities,
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capabilityUnregistration
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)
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if (caps instanceof Error) {
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return (this.serverCapabilities = {})
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}
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this.serverCapabilities = caps
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}
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)
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})
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// request "initialize": client <-> server
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const { capabilities } = await this.request(
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LSP.InitializeRequest.type.method,
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{
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processId: null,
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clientInfo: {
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name: 'codemirror-lsp-client',
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},
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capabilities: client_capabilities,
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rootUri: null,
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} as LSP.InitializeParams
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)
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this.serverCapabilities = capabilities
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// notify "initialized": client --> server
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this.notify(LSP.InitializedNotification.type.method, {})
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this.initializedCallback()
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await Promise.all(
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this.afterInitializedHooks.map((f: () => Promise<void>) => f())
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)
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await Promise.all([this.processNotifications(), this.processRequests()])
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}
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getServerCapabilities(): LSP.ServerCapabilities<any> {
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return this.serverCapabilities
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}
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setNotifyFn(fn: (message: LSP.NotificationMessage) => void): void {
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this.notifyFn = fn
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}
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async processNotifications(): Promise<void> {
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for await (const notification of this.#fromServer.notifications) {
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if (this.notifyFn) {
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this.notifyFn(notification)
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}
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}
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}
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async processRequests(): Promise<void> {
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for await (const request of this.#fromServer.requests) {
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await this.receiveAndSend(request)
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}
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}
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pushAfterInitializeHook(...hooks: (() => Promise<void>)[]): void {
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this.afterInitializedHooks.push(...hooks)
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}
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}
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