-import * as lc from 'vscode-languageclient';
+import * as lc from 'vscode-languageclient/node';
import * as vscode from 'vscode';
import * as ra from '../src/lsp_ext';
-import * as Is from 'vscode-languageclient/lib/utils/is';
-
-import { CallHierarchyFeature } from 'vscode-languageclient/lib/callHierarchy.proposed';
-import { SemanticTokensFeature, DocumentSemanticsTokensSignature } from 'vscode-languageclient/lib/semanticTokens.proposed';
+import * as Is from 'vscode-languageclient/lib/common/utils/is';
+import { DocumentSemanticsTokensSignature, DocumentSemanticsTokensEditsSignature, DocumentRangeSemanticTokensSignature } from 'vscode-languageclient/lib/common/semanticTokens';
import { assert } from './util';
+import { WorkspaceEdit } from 'vscode';
+
+export interface Env {
+ [name: string]: string;
+}
+
+function renderCommand(cmd: ra.CommandLink) {
+ return `[${cmd.title}](command:${cmd.command}?${encodeURIComponent(JSON.stringify(cmd.arguments))} '${cmd.tooltip}')`;
+}
+
+function renderHoverActions(actions: ra.CommandLinkGroup[]): vscode.MarkdownString {
+ const text = actions.map(group =>
+ (group.title ? (group.title + " ") : "") + group.commands.map(renderCommand).join(' | ')
+ ).join('___');
-export function createClient(serverPath: string, cwd: string): lc.LanguageClient {
+ const result = new vscode.MarkdownString(text);
+ result.isTrusted = true;
+ return result;
+}
+
+// Workaround for https://github.com/microsoft/vscode-languageserver-node/issues/576
+async function semanticHighlightingWorkaround<R, F extends (...args: any[]) => vscode.ProviderResult<R>>(next: F, ...args: Parameters<F>): Promise<R> {
+ const res = await next(...args);
+ if (res == null) throw new Error('busy');
+ return res;
+}
+
+export function createClient(serverPath: string, cwd: string, extraEnv: Env): lc.LanguageClient {
// '.' Is the fallback if no folder is open
// 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.
+ const newEnv = Object.assign({}, process.env);
+ Object.assign(newEnv, extraEnv);
+
const run: lc.Executable = {
command: serverPath,
- options: { cwd },
+ options: { cwd, env: newEnv },
};
const serverOptions: lc.ServerOptions = {
run,
const clientOptions: lc.LanguageClientOptions = {
documentSelector: [{ scheme: 'file', language: 'rust' }],
initializationOptions: vscode.workspace.getConfiguration("rust-analyzer"),
+ diagnosticCollectionName: "rustc",
traceOutputChannel,
middleware: {
- // Workaround for https://github.com/microsoft/vscode-languageserver-node/issues/576
- async provideDocumentSemanticTokens(document: vscode.TextDocument, token: vscode.CancellationToken, next: DocumentSemanticsTokensSignature) {
- const res = await next(document, token);
- if (res === undefined) throw new Error('busy');
- return res;
+ provideDocumentSemanticTokens(document: vscode.TextDocument, token: vscode.CancellationToken, next: DocumentSemanticsTokensSignature): vscode.ProviderResult<vscode.SemanticTokens> {
+ return semanticHighlightingWorkaround(next, document, token);
},
- // Using custom handling of CodeActions where each code action is resloved lazily
- // That's why we are not waiting for any command or edits
+ provideDocumentSemanticTokensEdits(document: vscode.TextDocument, previousResultId: string, token: vscode.CancellationToken, next: DocumentSemanticsTokensEditsSignature): vscode.ProviderResult<vscode.SemanticTokensEdits | vscode.SemanticTokens> {
+ return semanticHighlightingWorkaround(next, document, previousResultId, token);
+ },
+ provideDocumentRangeSemanticTokens(document: vscode.TextDocument, range: vscode.Range, token: vscode.CancellationToken, next: DocumentRangeSemanticTokensSignature): vscode.ProviderResult<vscode.SemanticTokens> {
+ return semanticHighlightingWorkaround(next, document, range, token);
+ },
+ async provideHover(document: vscode.TextDocument, position: vscode.Position, token: vscode.CancellationToken, _next: lc.ProvideHoverSignature) {
+ return client.sendRequest(lc.HoverRequest.type, client.code2ProtocolConverter.asTextDocumentPositionParams(document, position), token).then(
+ (result) => {
+ const hover = client.protocol2CodeConverter.asHover(result);
+ if (hover) {
+ const actions = (<any>result).actions;
+ if (actions) {
+ hover.contents.push(renderHoverActions(actions));
+ }
+ }
+ return hover;
+ },
+ (error) => {
+ client.handleFailedRequest(lc.HoverRequest.type, error, null);
+ return Promise.resolve(null);
+ });
+ },
+ // Using custom handling of CodeActions to support action groups and snippet edits.
+ // Note that this means we have to re-implement lazy edit resolving ourselves as well.
async provideCodeActions(document: vscode.TextDocument, range: vscode.Range, context: vscode.CodeActionContext, token: vscode.CancellationToken, _next: lc.ProvideCodeActionsSignature) {
const params: lc.CodeActionParams = {
textDocument: client.code2ProtocolConverter.asTextDocumentIdentifier(document),
continue;
}
assert(isCodeActionWithoutEditsAndCommands(item), "We don't expect edits or commands here");
- const action = new vscode.CodeAction(item.title);
+ const kind = client.protocol2CodeConverter.asCodeActionKind((item as any).kind);
+ const action = new vscode.CodeAction(item.title, kind);
const group = (item as any).group;
- const id = (item as any).id;
- const resolveParams: ra.ResolveCodeActionParams = {
- id: id,
- codeActionParams: params
- };
action.command = {
command: "rust-analyzer.resolveCodeAction",
title: item.title,
- arguments: [resolveParams],
+ arguments: [item],
};
+
+ // Set a dummy edit, so that VS Code doesn't try to resolve this.
+ action.edit = new WorkspaceEdit();
+
if (group) {
let entry = groups.get(group);
if (!entry) {
result[index] = items[0];
} else {
const action = new vscode.CodeAction(group);
+ action.kind = items[0].kind;
action.command = {
command: "rust-analyzer.applyActionGroup",
title: "",
arguments: [items.map((item) => {
- return { label: item.title, arguments: item.command!!.arguments!![0] };
+ return { label: item.title, arguments: item.command.arguments[0] };
})],
};
+
+ // Set a dummy edit, so that VS Code doesn't try to resolve this.
+ action.edit = new WorkspaceEdit();
+
result[index] = action;
}
}
);
}
- } as any
+ }
};
const client = new lc.LanguageClient(
);
// To turn on all proposed features use: client.registerProposedFeatures();
- // Here we want to enable CallHierarchyFeature and SemanticTokensFeature
- // since they are available on stable.
- // Note that while these features are stable in vscode their LSP protocol
- // implementations are still in the "proposed" category for 3.16.
- client.registerFeature(new CallHierarchyFeature(client));
- client.registerFeature(new SemanticTokensFeature(client));
client.registerFeature(new ExperimentalFeatures());
return client;
const caps: any = capabilities.experimental ?? {};
caps.snippetTextEdit = true;
caps.codeActionGroup = true;
- caps.resolveCodeAction = true;
+ caps.hoverActions = true;
+ caps.statusNotification = true;
capabilities.experimental = caps;
}
initialize(_capabilities: lc.ServerCapabilities<any>, _documentSelector: lc.DocumentSelector | undefined): void {
}
+ dispose(): void {
+ }
}
function isCodeActionWithoutEditsAndCommands(value: any): boolean {