console: print promise details (#4524)

1 files changed, 13 insertions, 0 deletions

diff --git a/cli/js/globals.ts b/cli/js/globals.ts
index 87ff13b22..e5b7ff85a 100644
--- a/cli/js/globals.ts
+++ b/cli/js/globals.ts
@@ -2,6 +2,7 @@
 
 import * as blob from "./web/blob.ts";
 import * as consoleTypes from "./web/console.ts";
+import * as promiseTypes from "./web/promise.ts";
 import * as customEvent from "./web/custom_event.ts";
 import * as domTypes from "./web/dom_types.ts";
 import * as domFile from "./web/dom_file.ts";
@@ -102,6 +103,18 @@ declare global {
 
     formatError: (e: Error) => string;
 
+    /**
+     * Get promise details as two elements array.
+     *
+     * First element is the `PromiseState`.
+     * If promise isn't pending, second element would be the result of the promise.
+     * Otherwise, second element would be undefined.
+     *
+     * Throws `TypeError` if argument isn't a promise
+     *
+     */
+    getPromiseDetails<T>(promise: Promise<T>): promiseTypes.PromiseDetails<T>;
+
     decode(bytes: Uint8Array): string;
     encode(text: string): Uint8Array;
   }