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servo/components/script_bindings/webidls/WindowOrWorkerGlobalScope.webidl
Tim van der Lippe 8e0c2d5750 Implement WindowOrWorkerGlobalScope::reportError (#40654)
This web API is alternative API to `throw e`, which is why we can reuse
a lot of the existing machinery.

The one testcase that isn't passing yet is because it reports an empty
`TypeError`. The current logic in `ErrorInfo` only retrieves the message
data, but doesn't include the type of the exception. For that, we need
to use `(*report)._base.errorNumber` and map that back to the original
type codes. However, deferring that to a follow-up as that requires some
more work in mozjs.

Signed-off-by: Tim van der Lippe <tvanderlippe@gmail.com>
2025-11-16 09:30:16 +00:00

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/* 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/. */
// https://html.spec.whatwg.org/multipage/#windoworworkerglobalscope
typedef (TrustedScript or DOMString or Function) TimerHandler;
[Exposed=(Window,Worker)]
interface mixin WindowOrWorkerGlobalScope {
[Replaceable] readonly attribute USVString origin;
undefined reportError(any e);
// base64 utility methods
[Throws] DOMString btoa(DOMString data);
[Throws] DOMString atob(DOMString data);
// timers
[Throws] long setTimeout(TimerHandler handler, optional long timeout = 0, any... arguments);
undefined clearTimeout(optional long handle = 0);
[Throws] long setInterval(TimerHandler handler, optional long timeout = 0, any... arguments);
undefined clearInterval(optional long handle = 0);
// microtask queuing
undefined queueMicrotask(VoidFunction callback);
// ImageBitmap
Promise<ImageBitmap> createImageBitmap(ImageBitmapSource image, optional ImageBitmapOptions options = {});
Promise<ImageBitmap> createImageBitmap(ImageBitmapSource image, long sx, long sy, long sw, long sh,
optional ImageBitmapOptions options = {});
// structured cloning
[Throws]
any structuredClone(any value, optional StructuredSerializeOptions options = {});
};
// https://w3c.github.io/hr-time/#the-performance-attribute
partial interface mixin WindowOrWorkerGlobalScope {
[Replaceable]
readonly attribute Performance performance;
};
// https://w3c.github.io/webappsec-secure-contexts/#monkey-patching-global-object
partial interface mixin WindowOrWorkerGlobalScope {
readonly attribute boolean isSecureContext;
};
// https://www.w3.org/TR/trusted-types/#extensions-to-the-windoworworkerglobalscope-interface
partial interface mixin WindowOrWorkerGlobalScope {
readonly attribute TrustedTypePolicyFactory trustedTypes;
};
// https://fetch.spec.whatwg.org/#fetch-method
partial interface mixin WindowOrWorkerGlobalScope {
[NewObject] Promise<Response> fetch(RequestInfo input, optional RequestInit init = {});
};
Window includes WindowOrWorkerGlobalScope;
WorkerGlobalScope includes WindowOrWorkerGlobalScope;