File: issue-74816.rs

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//@ revisions: current next
//@ ignore-compare-mode-next-solver (explicit revisions)
//@[next] compile-flags: -Znext-solver

#![feature(associated_type_defaults)]

trait Trait1 {
    fn foo();
}

trait Trait2 {
    type Associated: Trait1 = Self;
    //~^ ERROR: the trait bound `Self: Trait1` is not satisfied
    //~| the size for values of type `Self` cannot be known
}

impl Trait2 for () {}

fn call_foo<T: Trait2>() {
    T::Associated::foo()
}

fn main() {
    call_foo::<()>()
}