GPUDevice: pushErrorScope() method

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Note: This feature is available in Web Workers.

The pushErrorScope() method of the GPUDevice interface pushes a new GPU error scope onto the device's error scope stack, allowing you to capture errors of a particular type.

Once you are done capturing errors, you can end capture by invoking GPUDevice.popErrorScope(). This pops the scope from the stack and returns a Promise that resolves to an object describing the first error captured in the scope, or null if no errors were captured.

Syntax

js
pushErrorScope(filter)

Parameters

filter

An enumerated value that specifies what type of error will be caught in this particular error scope. Possible values are:

"internal"

The error scope will catch a GPUInternalError.

"out-of-memory"

The error scope will catch a GPUOutOfMemoryError.

"validation"

The error scope will catch a GPUValidationError.

Return value

None (Undefined).

Examples

The following example uses an error scope to capture a suspected validation error, logging it to the console.

js
device.pushErrorScope("validation");

let sampler = device.createSampler({
  maxAnisotropy: 0, // Invalid, maxAnisotropy must be at least 1.
});

device.popErrorScope().then((error) => {
  if (error) {
    sampler = null;
    console.error(`An error occurred while creating sampler: ${error.message}`);
  }
});

See WebGPU Error Handling best practices for a lot more examples and information.

Specifications

Specification
WebGPU
# dom-gpudevice-pusherrorscope

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
pushErrorScope
Experimental

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
Partial support
Partial support
In development. Supported in a pre-release version.
In development. Supported in a pre-release version.
No support
No support
Experimental. Expect behavior to change in the future.
See implementation notes.
User must explicitly enable this feature.
Has more compatibility info.

See also