mirror of
https://github.com/rust-lang/rust
synced 2024-10-01 22:34:35 +00:00
29 lines
456 B
Rust
29 lines
456 B
Rust
// run-pass
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struct Node<C: CollectionFactory<Self>> {
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_children: C::Collection,
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}
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trait CollectionFactory<T> {
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type Collection;
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}
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impl<T> CollectionFactory<T> for Vec<()> {
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type Collection = Vec<T>;
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}
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trait Collection<T>: Sized {
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fn push(&mut self, v: T);
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}
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impl<T> Collection<T> for Vec<T> {
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fn push(&mut self, v: T) {
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self.push(v)
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}
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}
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fn main() {
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let _ = Node::<Vec<()>> {
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_children: Vec::new(),
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};
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}
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