Generate declarations

1 files changed, 20 insertions, 1 deletions

diff --git a/js/globals.ts b/js/globals.ts
index c36eaff60..82c9a24c0 100644
--- a/js/globals.ts
+++ b/js/globals.ts
@@ -1,5 +1,25 @@
 // Copyright 2018 the Deno authors. All rights reserved. MIT license.
 
+import { Console } from "./console";
+
+declare global {
+  type MessageCallback = (msg: Uint8Array) => void;
+
+  interface Deno {
+    print(text: string): void;
+    recv(cb: MessageCallback): void;
+    send(msg: ArrayBufferView): Uint8Array | null;
+  }
+
+  interface Window {
+    console: Console;
+  }
+
+  const console: Console;
+  const deno: Readonly<Deno>;
+  const window: Window;
+}
+
 // If you use the eval function indirectly, by invoking it via a reference
 // other than eval, as of ECMAScript 5 it works in the global scope rather than
 // the local scope. This means, for instance, that function declarations create
@@ -20,7 +40,6 @@ window["window"] = window; // Create a window object.
 // window["clearTimeout"] = timer.clearTimer;
 // window["clearInterval"] = timer.clearTimer;
 
-import { Console } from "./console";
 window["console"] = new Console();
 
 // import { fetch } from "./fetch";