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33 lines
407 B
Rust
33 lines
407 B
Rust
// known-bug: #104800
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#![feature(dyn_star, trait_upcasting)]
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trait Foo: Bar {
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fn hello(&self);
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}
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trait Bar {
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fn world(&self);
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}
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struct W(usize);
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impl Foo for W {
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fn hello(&self) {
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println!("hello!");
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}
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}
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impl Bar for W {
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fn world(&self) {
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println!("world!");
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}
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}
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fn main() {
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let w: dyn* Foo = W(0);
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w.hello();
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let w: dyn* Bar = w;
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w.world();
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}
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