mirror of https://github.com/rust-lang/rust.git
17 lines
324 B
Rust
17 lines
324 B
Rust
trait Q<T:?Sized> {}
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trait Foo where u32: Q<Self> {
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fn foo(&self);
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}
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impl Q<()> for u32 {}
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impl Foo for () {
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fn foo(&self) {
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println!("foo!");
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}
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}
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fn main() {
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let _f: Box<dyn Foo> = //~ ERROR `Foo` cannot be made into an object
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Box::new(()); //~ ERROR `Foo` cannot be made into an object
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}
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