1814469 - [css-values] Implement CSS exponential functions

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, task)

Description

[Emilio Cobos Álvarez (:emilio)]

wpt.fyi dashboard

This bug is about implementing the remaining math functions that we don't support inside calc().

Code for existing math functions is in here, and it should be trivial to expand to the new functions.

Functions that need implementing are:

• Exponential functions (https://drafts.csswg.org/css-values-4/#exponent-funcs)
• Sign related functions (https://drafts.csswg.org/css-values-4/#sign-funcs)

They can probably be implemented each in separate bugs. Happy to help someone implement this or take it, should be relatively straight-forward and there are tests already (see above).

Comment 1

[zqianem]

Attachment: Bug 1814469 - Implement CSS exponential functions. r=emilio

Comment 2

[zqianem]

The hypot() function doesn't fully work yet because there is no way to negate it by changing its arguments. Should we look into adding a Negate node? The abs() function will also run into this issue.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/a429c31909d3
Implement CSS exponential functions. r=emilio

Comment 4

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Created web-platform-tests PR https://github.com/web-platform-tests/wpt/pull/38818 for changes under testing/web-platform/tests

Comment 6

[Marian-Vasile Laza]

https://hg.mozilla.org/mozilla-central/rev/a429c31909d3

Comment 7

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Upstream PR merged by moz-wptsync-bot

Comment 8

[Dave Letorey]

Associated Pull Requests

• Content
• Browser Compat Data
• Firefox Release

Comment 9

[Dave Letorey]

Is this going to be released in 112?

It is currently not work in 112.0.2 (64-bit) on MacOS

Comment 10

[Daniel Holbert [:dholbert]]

(In reply to Dave Letorey from comment #9)

Is this going to be released in 112?

It is currently not work in 112.0.2 (64-bit) on MacOS

Late-breaking answer: no, this is behind about:config pref layout.css.exp.enabled which is still Nightly-only for now, according to:

https://searchfox.org/mozilla-central/rev/887d4b5da89a11920ed0fd96b7b7f066927a67db/modules/libpref/init/StaticPrefList.yaml#8257-8258,8260

Until that changes, this won't be enabled by default in Firefox release versions.