From 0f0dd5b7ec2a7ac95e1b36c866f73b85e4fb4879 Mon Sep 17 00:00:00 2001
From: Andreu Botella <abb@randomunok.com>
Date: Fri, 10 Dec 2021 15:12:38 +0100
Subject: feat(ext/web): implement `AbortSignal.prototype.throwIfAborted()`
 (#13044)

See whatwg/dom#1034.
---
 ext/web/03_abort_signal.js | 7 +++++++
 ext/web/lib.deno_web.d.ts  | 4 ++++
 2 files changed, 11 insertions(+)

(limited to 'ext')

diff --git a/ext/web/03_abort_signal.js b/ext/web/03_abort_signal.js
index 6b278ba07..d46291b14 100644
--- a/ext/web/03_abort_signal.js
+++ b/ext/web/03_abort_signal.js
@@ -85,6 +85,13 @@
       webidl.assertBranded(this, AbortSignal);
       return this[abortReason];
     }
+
+    throwIfAborted() {
+      webidl.assertBranded(this, AbortSignal);
+      if (this[abortReason] !== undefined) {
+        throw this[abortReason];
+      }
+    }
   }
   defineEventHandler(AbortSignal.prototype, "abort");
 
diff --git a/ext/web/lib.deno_web.d.ts b/ext/web/lib.deno_web.d.ts
index 3cdc2bea6..0f10af7f2 100644
--- a/ext/web/lib.deno_web.d.ts
+++ b/ext/web/lib.deno_web.d.ts
@@ -293,6 +293,10 @@ interface AbortSignal extends EventTarget {
     listener: EventListenerOrEventListenerObject,
     options?: boolean | EventListenerOptions,
   ): void;
+
+  /** Throws this AbortSignal's abort reason, if its AbortController has
+   * signaled to abort; otherwise, does nothing. */
+  throwIfAborted(): void;
 }
 
 declare var AbortSignal: {
-- 
cgit v1.2.3