6 files changed, 22 insertions, 18 deletions

diff --git a/editors/code/src/client.ts b/editors/code/src/client.ts
index 18948cb3c..f5db55b8c 100644
--- a/editors/code/src/client.ts
+++ b/editors/code/src/client.ts
@@ -4,7 +4,7 @@ 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 { SemanticTokensFeature } from 'vscode-languageclient/lib/semanticTokens.proposed';
 import { assert } from './util';
 
 function renderCommand(cmd: ra.CommandLink) {
@@ -44,12 +44,6 @@ export function createClient(serverPath: string, cwd: string): lc.LanguageClient
         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;
-            },
             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) => {
@@ -135,7 +129,7 @@ export function createClient(serverPath: string, cwd: string): lc.LanguageClient
                 );
             }
 
-        } as any
+        }
     };
 
     const client = new lc.LanguageClient(
diff --git a/editors/code/src/ctx.ts b/editors/code/src/ctx.ts
index 6e767babf..543f7e02e 100644
--- a/editors/code/src/ctx.ts
+++ b/editors/code/src/ctx.ts
@@ -36,7 +36,7 @@ export class Ctx {
 
         res.pushCleanup(client.start());
         await client.onReady();
-        client.onNotification(ra.status, (status) => res.setStatus(status));
+        client.onNotification(ra.status, (params) => res.setStatus(params.status));
         return res;
     }
 
diff --git a/editors/code/src/debug.ts b/editors/code/src/debug.ts
index bd92c5b6d..925126a16 100644
--- a/editors/code/src/debug.ts
+++ b/editors/code/src/debug.ts
@@ -87,9 +87,17 @@ async function getDebugConfiguration(ctx: Ctx, runnable: ra.Runnable): Promise<v
         debugOutput.show(true);
     }
 
-    const wsFolder = path.normalize(vscode.workspace.workspaceFolders![0].uri.fsPath); // folder exists or RA is not active.
+    const isMultiFolderWorkspace = vscode.workspace.workspaceFolders!.length > 1;
+    const firstWorkspace = vscode.workspace.workspaceFolders![0]; // folder exists or RA is not active.
+    const workspace = !isMultiFolderWorkspace || !runnable.args.workspaceRoot ?
+        firstWorkspace :
+        vscode.workspace.workspaceFolders!.find(w => runnable.args.workspaceRoot?.includes(w.uri.fsPath)) || firstWorkspace;
+
+    const wsFolder = path.normalize(workspace.uri.fsPath);
+    const workspaceQualifier = isMultiFolderWorkspace ? `:${workspace.name}` : '';
     function simplifyPath(p: string): string {
-        return path.normalize(p).replace(wsFolder, '${workspaceRoot}');
+        // see https://github.com/rust-analyzer/rust-analyzer/pull/5513#issuecomment-663458818 for why this is needed
+        return path.normalize(p).replace(wsFolder, '${workspaceFolder' + workspaceQualifier + '}');
     }
 
     const executable = await getDebugExecutable(runnable);
diff --git a/editors/code/src/lsp_ext.ts b/editors/code/src/lsp_ext.ts
index 494d51c83..8663737a6 100644
--- a/editors/code/src/lsp_ext.ts
+++ b/editors/code/src/lsp_ext.ts
@@ -8,7 +8,10 @@ export const analyzerStatus = new lc.RequestType<null, string, void>("rust-analy
 export const memoryUsage = new lc.RequestType<null, string, void>("rust-analyzer/memoryUsage");
 
 export type Status = "loading" | "ready" | "invalid" | "needsReload";
-export const status = new lc.NotificationType<Status>("rust-analyzer/status");
+export interface StatusParams {
+    status: Status;
+}
+export const status = new lc.NotificationType<StatusParams>("rust-analyzer/status");
 
 export const reloadWorkspace = new lc.RequestType<null, null, void>("rust-analyzer/reloadWorkspace");
 
diff --git a/editors/code/src/toolchain.ts b/editors/code/src/toolchain.ts
index 80a7915e9..a5dc3cf0c 100644
--- a/editors/code/src/toolchain.ts
+++ b/editors/code/src/toolchain.ts
@@ -121,12 +121,12 @@ export class Cargo {
     }
 }
 
-/** Mirrors `ra_toolchain::cargo()` implementation */
+/** Mirrors `toolchain::cargo()` implementation */
 export function cargoPath(): string {
     return getPathForExecutable("cargo");
 }
 
-/** Mirrors `ra_toolchain::get_path_for_executable()` implementation */
+/** Mirrors `toolchain::get_path_for_executable()` implementation */
 export const getPathForExecutable = memoize(
     // We apply caching to decrease file-system interactions
     (executableName: "cargo" | "rustc" | "rustup"): string => {
diff --git a/editors/code/src/util.ts b/editors/code/src/util.ts
index 970fedb37..ec2087502 100644
--- a/editors/code/src/util.ts
+++ b/editors/code/src/util.ts
@@ -25,7 +25,6 @@ export const log = new class {
     debug(...msg: [unknown, ...unknown[]]): void {
         if (!log.enabled) return;
         log.write("DEBUG", ...msg);
-        log.output.toString();
     }
 
     info(...msg: [unknown, ...unknown[]]): void {
@@ -64,7 +63,8 @@ export async function sendRequestWithRetry<TParam, TRet>(
     param: TParam,
     token?: vscode.CancellationToken,
 ): Promise<TRet> {
-    for (const delay of [2, 4, 6, 8, 10, null]) {
+    // The sequence is `10 * (2 ** (2 * n))` where n is 1, 2, 3...
+    for (const delay of [40, 160, 640, 2560, 10240, null]) {
         try {
             return await (token
                 ? client.sendRequest(reqType, param, token)
@@ -84,8 +84,7 @@ export async function sendRequestWithRetry<TParam, TRet>(
                 log.warn("LSP request failed", { method: reqType.method, param, error });
                 throw error;
             }
-
-            await sleep(10 * (1 << delay));
+            await sleep(delay);
         }
     }
     throw 'unreachable';