Supports :host-context pseudo-class - #1299
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Summary
Adds support for the
:host-context()pseudo-class when parsing CSS selectors.Motivation
Ionic uses
:host-context()in its component styles. When Lightning CSS is used as the CSS transformer in Vite, parsing fails with:This prevents Lightning CSS from processing Ionic's generated CSS.
P.S. I'm not a Rust developer I'm primarily a front-end developer. This is my first contribution to a Rust project, so I hope my implementation is useful. If there's anything you'd like me to improve or implement differently, I'd be happy to update the PR.