Aliaksandr Kalenik c62996abd7 LibWeb: Avoid dynamic_cast in SlottableMixin::assigned_slot() ...

`SlottableMixin::assigned_slot()` was using `as<DOM::Node>(*this)` to
get a `Node` reference. Since `SlottableMixin` has no inheritance
relationship with `Node`, `as_if<>` can't use `static_cast` and falls
through to `dynamic_cast`, which is expensive. Replace this with a
virtual `slottable_as_node()` accessor overridden in `Element` and
`Text`.

This showed up as hot in profiles when loading the GC heap explorer
page.

2026-02-07 16:43:50 +01:00

1.6 KiB

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