25 lines
546 B
Rust
25 lines
546 B
Rust
#![feature(rustc_attrs)]
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trait Supertrait<T> {
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fn _print_numbers(&self, mem: &[usize; 100]) {
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}
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}
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impl<T> Supertrait<T> for () {}
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trait Trait<T, U>: Supertrait<T> + Supertrait<U> {
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fn say_hello(&self, _: &usize) {
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}
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}
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impl<T, U> Trait<T, U> for () {}
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// We should observe compatibility between these two vtables.
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#[rustc_dump_vtable]
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type First = dyn for<'a> Trait<&'static (), &'a ()>;
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//~^ ERROR vtable entries
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#[rustc_dump_vtable]
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type Second = dyn Trait<&'static (), &'static ()>;
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//~^ ERROR vtable entries
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fn main() {}
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