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// Regression test for #90400,
// taken from https://github.com/rust-lang/rust/issues/90400#issuecomment-954927836
#![feature(impl_trait_in_assoc_type)]
trait Bar {
fn bar(&self);
}
trait Baz {
fn baz(&self);
}
trait Foo {
type FooFn<B>: Baz;
fn foo<B: Bar>(&self, bar: B) -> Self::FooFn<B>;
}
struct MyFoo;
impl Foo for MyFoo {
type FooFn<B> = impl Baz;
fn foo<B: Bar>(&self, bar: B) -> Self::FooFn<B> {
MyBaz(bar) //~ ERROR: the trait bound `B: Bar` is not satisfied
}
}
struct MyBaz<B: Bar>(B);
impl<B: Bar> Baz for MyBaz<B> {
fn baz(&self) {}
}
fn main() {
let boom: <MyFoo as Foo>::FooFn<u32> = unsafe { core::mem::zeroed() };
boom.baz();
}
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