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Removed FnvHash and transformed the rest to FxHashmap (#39233)

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This should be the final PR for the Hash Function series that is
trivial.

Of note: I decided to transform `HashMapTracedValues<Atom,..>` to use
FxBuildHasher. This is likely not going to improve performance as Atom's
already have a unique u32 that is used as the Hash but it safes a few
bytes for the RandomState that is normally in the HashMap.

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>

Testing: Hash function changes should not change functionality, we
slightly decrease the size and unit tests still work.

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
This commit is contained in:
Narfinger 2025-09-10 15:34:54 +02:00 • committed by GitHub
parent 726b456120
commit 84465e7768
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55 changed files with 211 additions and 202 deletions
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3
components/script/dom/stylepropertymapreadonly.rs
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@ -6,6 +6,7 @@ use std::cmp::Ordering;
use std::iter::Iterator;
use dom_struct::dom_struct;
use rustc_hash::FxBuildHasher;
use style::custom_properties;
use stylo_atoms::Atom;
@ -21,7 +22,7 @@ use crate::script_runtime::CanGc;
#[dom_struct]
pub(crate) struct StylePropertyMapReadOnly {
reflector: Reflector,
entries: HashMapTracedValues<Atom, Dom<CSSStyleValue>>,
entries: HashMapTracedValues<Atom, Dom<CSSStyleValue>, FxBuildHasher>,
}
impl StylePropertyMapReadOnly {