rustfmt-nightly 1.4.21

Tool to find and fix Rust formatting issues
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// Opaque type.

#![feature(type_alias_impl_trait)]

pub type Adder<F, T>
where
    T: Clone,
    F: Copy,
= impl Fn(T) -> T;

pub type Adderrr<T> = impl Fn(T) -> T;

impl Foo for Bar {
    type E = impl Trait;
}

pub type Adder_without_impl<F, T>
where
    T: Clone,
    F: Copy,
= Fn(T) -> T;

pub type Adderrr_without_impl<T> = Fn(T) -> T;