rust/src/test/ui/run-pass/impl-trait/issue-49376.rs

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// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// Tests for nested self-reference which caused a stack overflow.
use std::fmt::Debug;
use std::ops::*;
fn gen() -> impl PartialOrd + PartialEq + Debug { }
struct Bar {}
trait Foo<T = Self> {}
impl Foo for Bar {}
fn foo() -> impl Foo {
Bar {}
}
fn test_impl_ops() -> impl Add + Sub + Mul + Div { 1 }
fn test_impl_assign_ops() -> impl AddAssign + SubAssign + MulAssign + DivAssign { 1 }
fn main() {}