Work around missing GLib.Error.stack

Work around gjsify/ts-for-gir#196 by declaring
the stack attribute explicitly.

src/lib/fixes.ts

@@ -0,0 +1,32 @@
+// Copyright Sebastian Wiesner <[email protected]>
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0.If a copy of the MPL was not distributed with this
+// file, You can obtain one at https://mozilla.org/MPL/2.0/.
+//
+// Alternatively, the contents of this file may be used under the terms
+// of the GNU General Public License Version 2 or later, as described below:
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+import type GLib from "gi://GLib";
+
+/**
+ * This module provides workarounds and fixes for various incomplete type
+ * declarations in Gnome shell types and its dependencies.
+ */
+
+/**
+ * @see https://github.com/gjsify/ts-for-gir/issues/196
+ */
+export interface GLibErrorWithStack extends GLib.Error {
+  readonly stack: string;
+}

src/lib/ui/error-detail-dialog.ts

@@ -27,6 +27,7 @@ import { pgettext } from "resource:///org/gnome/shell/extensions/extension.js";
 
 import { ModalDialog } from "resource:///org/gnome/shell/ui/modalDialog.js";
 import { unfoldCauses } from "../common/error.js";
+import { GLibErrorWithStack } from "../fixes.js";
 
 /**
  * Shortcut for `GLib.markup_escape_text`.
@@ -55,7 +56,7 @@ const formatOneError = (error: unknown): string => {
     const stack = formatStacktrace(error.stack);
     return `<b>${e(error.name)}: ${e(error.message)}</b>\n${stack}`;
   } else if (error instanceof GLib.Error) {
-    const stack = formatStacktrace(error.stack);
+    const stack = formatStacktrace((error as GLibErrorWithStack).stack);
     return `<b>${error.toString()}</b>\n${stack}`;
   } else if (typeof error === "string") {
     return e(`<b>${error}</b>`);