rust/src/test/compile-fail/issue-31173.rs
Ariel Ben-Yehuda f3ee99bd4d try to recover the non-matching types in projection errors
The type equation in projection takes place under a binder and a snapshot, which
we can't easily take types out of. Instead, when encountering a projection error,
try to re-do the projection and find the type error then.

This fails to produce a sane type error when the failure was a "leak_check" failure.
I can't think of a sane way to show *these*, so I just left them use the old crappy
representation, and added a test to make sure we don't break them.
2016-07-22 14:32:56 +03:00

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Rust

// Copyright 2016 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.
use std::vec::IntoIter;
pub fn get_tok(it: &mut IntoIter<u8>) {
let mut found_e = false;
let temp: Vec<u8> = it.take_while(|&x| {
found_e = true;
false
})
.cloned()
//~^ ERROR type mismatch resolving
//~| expected type `u8`
//~| found type `&_`
.collect(); //~ ERROR no method named `collect`
}
fn main() {}