feat(atoms): supports static atoms #6812
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| @@ -190,9 +219,9 @@ impl Ord for Atom { | |||
| impl PartialEq for Atom { | |||
| fn eq(&self, other: &Self) -> bool { | |||
| // Fast path | |||
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@kdy1 After supporting Atom::static, I'm not sure the fast path will work as before. To keep the logic same as before, we need to call match twice. I'm going to remove the code, in case I miss something, what are your opinions?
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Also, should Atom promise assert!(Atom::Arc("foo") == Atom::Static("foo"))?
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I think it's fine, but assert!(Atom::Arc("foo") == Atom::Static("foo")) should work
| } | ||
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| // fn _assert_size() { | ||
| // let _static_assert_size_eq = std::mem::transmute::<Atom, usize>; |
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@kdy1 The transmute seems not to work, after making Atom(ThinArc<HeaderWithLength<()>, u8>) to Atom(Inner).
Is this expected?
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Yes, but it will degrade performance greatly.
I didn't implement static support because it's hard
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I get the gist. We need something like ThinStaticStr. It's indeed hard after looking into thin_tr. I will try it, but it will take a while.
If anyone wants to try this, feel free to do it.
Description:
This PR supports allowing
Atomto store&'static strin it.BREAKING CHANGE:
Related issue (if exists):
#4946