1 files changed, 33 insertions, 0 deletions
diff --git a/toolkit/components/extensions/types/globals.ts b/toolkit/components/extensions/types/globals.ts
new file mode 100644
index 0000000000..45722828e2
--- /dev/null
+++ b/toolkit/components/extensions/types/globals.ts
@@ -0,0 +1,33 @@
+/**
+ * Support types for toolkit/components/extensions code.
+ */
+
+/// <reference lib="dom" />
+/// <reference path="./gecko.ts" />
+/// <reference path="./extensions.ts" />
+
+// This now relies on types generated in bug 1872918, or get the built
+// artifact tslib directly and put it in your src/node_modules/@types:
+// https://phabricator.services.mozilla.com/D197620
+/// <reference types="lib.gecko.xpidl" />
+
+// Exports for all other external modules redirected to globals.ts.
+export var AppConstants,
+  GeckoViewConnection, GeckoViewWebExtension, IndexedDB, JSONFile, Log;
+
+/**
+ * This is a mock for the "class" from EventEmitter.sys.mjs. When we import
+ * it in extensions code using resource://gre/modules/EventEmitter.sys.mjs,
+ * the catch-all rule from tsconfig.json redirects it to this file. The export
+ * of the class below fulfills the import. The mock is needed when we subclass
+ * that EventEmitter, typescript gets confused because it's an old style
+ * function-and-prototype-based "class", and some types don't match up.
+ *
+ * TODO: Convert EventEmitter.sys.mjs into a proper class.
+ */
+export declare class EventEmitter {
+  on(event: string, listener: callback): void;
+  once(event: string, listener: callback): Promise<any>;
+  off(event: string, listener: callback): void;
+  emit(event: string, ...args: any[]): void;
+}