2022010 - Allow accepting large typed arrays in DOM bindings

Status: RESOLVED FIXED

(Core :: DOM: Bindings (WebIDL), defect)

Description

[Jeff Muizelaar [:jrmuizel]]

This is most useful for using WebGL functions with large WASM heaps.

See bug 1838218 comment 4 and following for context

Comment 1

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

jrmuizel: Could you set the severity field? Sounds like S3 or S4, but I'm not sure the API usage scenarios in the wild.

Comment 2

[Jeff Muizelaar [:jrmuizel]]

I have a WIP for this

Comment 3

[Jeff Muizelaar [:jrmuizel]]

Attachment: WIP patch

Comment 4

[Jeff Muizelaar [:jrmuizel]]

Attachment: Bug 2022010 - Add [AllowLarge] WebIDL extended attribute for large TypedArrays.

Add [AllowLarge] to the WebIDL bindings infrastructure, following the
existing [AllowShared] pattern. When present on a buffer source type,
the bindings skip the >2GB size rejection, allowing TypedArray views
backed by large WASM heaps to be passed to DOM APIs.

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/e10d6b8c8314
https://hg.mozilla.org/integration/autoland/rev/325223f651a9
Add [AllowLarge] WebIDL extended attribute for large TypedArrays. r=edgar

Comment 6

[Atila Butkovits]

https://hg.mozilla.org/mozilla-central/rev/325223f651a9