LGTM2
On 2/13/25 11:30 AM, Chris Harrelson wrote:
LGTM1
On Thu, Feb 13, 2025 at 7:38 AM Shu-yu Guo <s...@chromium.org> wrote:
Yep, shipping Float16Array will make those tests pass. There is
virtual test suite you can see that has the updated expectations
once the feature ships. E.g. here's fetch's response-headers tests
<https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/web_tests/virtual/float16array-enabled/external/wpt/fetch/api/basic/request-headers.any-expected.txt;drc=ec42d9a27be16cfee08490a1db43924d375cfab1>.
On Wed, Feb 12, 2025 at 8:55 PM Domenic Denicola
<dome...@chromium.org> wrote:
On Thursday, February 13, 2025 at 12:21:13 PM UTC+9
Chromestatus wrote:
Contact emails s...@chromium.org, seo...@chromium.org
Explainer None
Specification https://tc39.es/proposal-float16array
<https://tc39.es/proposal-float16array>
Summary
Adds the Float16Array typed array. Number values are
rounded to IEEE fp16 when writing into Float16Array instances.
Blink component Blink>JavaScript>Language
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EJavaScript%3ELanguage%22>
TAG review None
TAG review status Not applicable
Risks
Interoperability and Compatibility
None.
/Gecko/: Shipped/Shipping
(https://www.mozilla.org/en-US/firefox/129.0/releasenotes
<https://www.mozilla.org/en-US/firefox/129.0/releasenotes>)
/WebKit/: Shipped/Shipping
(https://developer.apple.com/documentation/safari-technology-preview-release-notes/stp-release-202
<https://developer.apple.com/documentation/safari-technology-preview-release-notes/stp-release-202>)
/Web developers/: No signals
/Other signals/:
WebView application risks
Does this intent deprecate or change behavior of existing
APIs, such that it has potentially high risk for Android
WebView-based applications?
None
Debuggability
Debuggable like the existing typed array constructors
Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, ChromeOS, Android, and Android
WebView)? Yes
Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?
Yes
In test262: https://github.com/tc39/test262/pull/3849
<https://github.com/tc39/test262/pull/3849>
Note that there are also a good number of WPTs that check that
Float16Arrays are supported in web APIs. For example,
https://wpt.fyi/results/WebCryptoAPI/getRandomValues.any.html?label=experimental&label=master&aligned
<https://wpt.fyi/results/WebCryptoAPI/getRandomValues.any.html?label=experimental&label=master&aligned>
or
https://wpt.fyi/results/fetch/api/basic/request-headers.any.html?label=experimental&label=master&aligned
<https://wpt.fyi/results/fetch/api/basic/request-headers.any.html?label=experimental&label=master&aligned>
.
Canary with experimental web platform features is currently
failing these. Can you confirm that shipping Float16Array per
this Intent will be enough to make these pass? Or would there
be additional work necessary?
Flag name on about://flags --js-float16array
Finch feature name V8Flag_js_float16array
Requires code in //chrome? False
Tracking bug https://issues.chromium.org/issues/42203953
<https://issues.chromium.org/issues/42203953>
Estimated milestones Shipping on desktop 135 DevTrial on
desktop 124 Shipping on Android 135 DevTrial on Android
124 Shipping on WebView 135
Anticipated spec changes
Open questions about a feature may be a source of future
web compat or interop issues. Please list open issues
(e.g. links to known github issues in the project for the
feature specification) whose resolution may introduce web
compat/interop risk (e.g., changing to naming or structure
of the API in a non-backward-compatible way).
None
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5164400693215232?gate=6205029258887168
<https://chromestatus.com/feature/5164400693215232?gate=6205029258887168>
This intent message was generated by Chrome Platform
Status <https://chromestatus.com>.
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