Nested pseudo-elements in :host produce invalid selector #64830
Description
Which @angular/* package(s) are the source of the bug?
compiler
Is this a regression?
Yes
Description
:host(:not(:has(.foo))) {} produces ([_nghost]:not(:has(.foo))) {} at head. Note the wrapping parentheses which prevent the selector from matching the intended elements. This is the minimal reproduction I was able to find quickly.
Please provide a link to a minimal reproduction of the bug
No response
Please provide the exception or error you saw
Please provide the environment you discovered this bug in (run ng version)
Angular CLI: 20.3.6
Node: 20.19.1
Package Manager: npm 10.8.2
OS: linux x64
Angular: 20.3.6
... animations, build, cli, common, compiler, compiler-cli, core
... forms, platform-browser
Package Version
------------------------------------
@angular-devkit/architect 0.2003.6
@angular-devkit/core 20.3.6
@angular-devkit/schematics 20.3.6
@angular/cdk 20.2.9
@angular/material 20.2.9
@schematics/angular 20.3.6
rxjs 7.8.2
typescript 5.8.3
zone.js 0.15.1
Anything else?
No response