Hi Seokho,
Curious, how do I enable this in Canary? I tried but the experimental
features doesn't seem to enable this (unless I'm holding it wrong).
I guess given
<https://chromium.googlesource.com/chromium/src/+/3d250cc6a43edde74f2870ef379545e5e6306dae>
I'll be able to test soon enough, but it's really weird that this is
shipping without being enabled as experimental first? I presume that
means that no web developer has actually tested it or anything :/
In general I think this is probably fine, but if the tests in:
<https://wpt.fyi/results/css/css-values?label=master&label=experimental&aligned&q=infinity-nan>
are the only ones, that seems at best a bit scarce. There are no
behavior tests for anything that aren't transforms?
Tangential, but it's clear that the safari implementation is totally
broken in various ways (like serializing NaNdeg...).
I'm a bit scared of making too easy to get NaNs (and thus off-limit
values like +inf / -inf in the layout engines) specially since limits
across layout engines can diverge. I guess it's not anything you can't
do subtracting massive numbers though, so it might be fine.
-- Emilio
On 12/10/21 00:56, Seokho Song wrote:
Contact emails
0xdev...@gmail.com
Explainer
https://github.com/DevSDK/calc-infinity-and-NaN/blob/master/explainer.md
<https://github.com/DevSDK/calc-infinity-and-NaN/blob/master/explainer.md>
Specification
https://drafts.csswg.org/css-values/#ref-for-math-function%E2%91%A1%E2%91%A0
<https://drafts.csswg.org/css-values/#ref-for-math-function%E2%91%A1%E2%91%A0>
Design docs
https://bit.ly/349gXjq <https://bit.ly/349gXjq>
Summary
CSS calc() math function should allow infinity and NaN values by
'infinity', '-infinity', 'NaN' keywords or expressions that could be
evaluated into infinity or NaN such as 'calc(1/0)'.
Blink component
Blink>CSS
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ECSS>
Search tags
css <https://chromestatus.com/features#tags:css>, calc
<https://chromestatus.com/features#tags:calc>, infinity
<https://chromestatus.com/features#tags:infinity>, nan
<https://chromestatus.com/features#tags:nan>
TAG review
Not required. It's a very small part of CSS.
TAG review status
Not applicable
Risks
Interoperability and Compatibility
This feature may have interoperability risks. Other browsers have not
yet implemented this feature.
Gecko: No signal (https://bugzilla.mozilla.org/show_bug.cgi?id=1682444
<https://bugzilla.mozilla.org/show_bug.cgi?id=1682444>)
WebKit: Shipped/Shipping (https://bugs.webkit.org/show_bug.cgi?id=231044
<https://bugs.webkit.org/show_bug.cgi?id=231044>)
Web developers: No signals
Other signals:
Debuggability
N/A
Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md>?
Yes
Flag name
Requires code in //chrome?
False
Tracking bug
https://bugs.chromium.org/p/chromium/issues/detail?id=1133390
<https://bugs.chromium.org/p/chromium/issues/detail?id=1133390>
Estimated milestones
99
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5657825571241984
<https://chromestatus.com/feature/5657825571241984>
Links to previous Intent discussions
Intent to prototype:
https://groups.google.com/a/chromium.org/g/blink-dev/c/4cT9dMkzVXE/m/aCT8B6PDAwAJ <https://groups.google.com/a/chromium.org/g/blink-dev/c/4cT9dMkzVXE/m/aCT8B6PDAwAJ>
This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.
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