4 files changed, 24 insertions, 3 deletions

diff --git a/editors/code/src/client.ts b/editors/code/src/client.ts
index b2c830b30..d65454275 100644
--- a/editors/code/src/client.ts
+++ b/editors/code/src/client.ts
@@ -46,6 +46,7 @@ export async function createClient(config: Config, serverPath: string): Promise<
             withSysroot: config.withSysroot,
             cargoFeatures: config.cargoFeatures,
             rustfmtArgs: config.rustfmtArgs,
+            vscodeLldb: vscode.extensions.getExtension("vadimcn.vscode-lldb") != null,
         },
         traceOutputChannel,
         middleware: {
diff --git a/editors/code/src/commands/runnables.ts b/editors/code/src/commands/runnables.ts
index 06b513466..357155163 100644
--- a/editors/code/src/commands/runnables.ts
+++ b/editors/code/src/commands/runnables.ts
@@ -62,6 +62,26 @@ export function runSingle(ctx: Ctx): Cmd {
     };
 }
 
+export function debugSingle(ctx: Ctx): Cmd {
+    return async (config: ra.Runnable) => {
+        const editor = ctx.activeRustEditor;
+        if (!editor) return;
+
+        const debugConfig = {
+            type: "lldb",
+            request: "launch",
+            name: config.label,
+            cargo: {
+                args: config.args,
+            },
+            args: config.extraArgs,
+            cwd: config.cwd
+        };
+
+        return vscode.debug.startDebugging(undefined, debugConfig);
+    };
+}
+
 class RunnableQuickPick implements vscode.QuickPickItem {
     public label: string;
     public description?: string | undefined;
@@ -87,7 +107,7 @@ function createTask(spec: ra.Runnable): vscode.Task {
         type: 'cargo',
         label: spec.label,
         command: spec.bin,
-        args: spec.args,
+        args: spec.extraArgs ? [...spec.args, '--', ...spec.extraArgs] : spec.args,
         env: spec.env,
     };
 
diff --git a/editors/code/src/main.ts b/editors/code/src/main.ts
index ecf53cf77..e01c89cc7 100644
--- a/editors/code/src/main.ts
+++ b/editors/code/src/main.ts
@@ -83,6 +83,7 @@ export async function activate(context: vscode.ExtensionContext) {
 
     // Internal commands which are invoked by the server.
     ctx.registerCommand('runSingle', commands.runSingle);
+    ctx.registerCommand('debugSingle', commands.debugSingle);
     ctx.registerCommand('showReferences', commands.showReferences);
     ctx.registerCommand('applySourceChange', commands.applySourceChange);
     ctx.registerCommand('selectAndApplySourceChange', commands.selectAndApplySourceChange);
diff --git a/editors/code/src/rust-analyzer-api.ts b/editors/code/src/rust-analyzer-api.ts
index bd6e3ada0..e09a203c9 100644
--- a/editors/code/src/rust-analyzer-api.ts
+++ b/editors/code/src/rust-analyzer-api.ts
@@ -80,13 +80,12 @@ export interface Runnable {
     label: string;
     bin: string;
     args: Vec<string>;
+    extraArgs: Vec<string>;
     env: FxHashMap<string, string>;
     cwd: Option<string>;
 }
 export const runnables = request<RunnablesParams, Vec<Runnable>>("runnables");
 
-
-
 export type InlayHint = InlayHint.TypeHint | InlayHint.ParamHint;
 
 export namespace InlayHint {