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https://github.com/rust-lang/rust
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23 lines
353 B
Rust
23 lines
353 B
Rust
use std::collections::BTreeSet;
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#[derive(Hash)]
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pub enum ElemDerived {
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//~^ ERROR recursive type `ElemDerived` has infinite size
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A(ElemDerived)
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}
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pub enum Elem {
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Derived(ElemDerived)
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}
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pub struct Set(BTreeSet<Elem>);
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impl Set {
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pub fn into_iter(self) -> impl Iterator<Item = Elem> {
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self.0.into_iter()
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}
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}
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fn main() {}
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