New upstream version 1.12.0+dfsg1

[rustc.git] / src / test / compile-fail / associated-types / cache / wasm-issue-32330.rs

// Copyright 2014 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.

// This test was derived from the wasm and parsell crates.  They
// stopped compiling when #32330 is fixed.

#![allow(dead_code, unused_variables)]
#![deny(hr_lifetime_in_assoc_type)]

use std::str::Chars;

pub trait HasOutput<Ch, Str> {
    type Output;
}

#[derive(Clone, PartialEq, Eq, Hash, Ord, PartialOrd, Debug)]
pub enum Token<'a> {
    Begin(&'a str)
}

fn mk_unexpected_char_err<'a>() -> Option<&'a i32> {
    unimplemented!()
}

fn foo<'a>(data: &mut Chars<'a>) {
    bar(mk_unexpected_char_err)
    //~^ ERROR lifetime parameter `'a` declared on fn `mk_unexpected_char_err`
    //~| WARNING hard error in a future release
}

fn bar<F>(t: F)
    // No type can satisfy this requirement, since `'a` does not
    // appear in any of the input types:
    where F: for<'a> Fn() -> Option<&'a i32>
    //~^ ERROR associated type `Output` references lifetime `'a`, which does not
    //~| WARNING hard error in a future release
{
}

fn main() {
}