rust/src/test/compile-fail/str-mut-idx.rs
Ariel Ben-Yehuda 7b9519a5d4 suppress trait errors that are implied by other errors
Instead of suppressing only trait errors that are "exact duplicates",
display only the "most high-level" error when there are multiple trait
errors with the same span that imply each-other.

e.g. when there are both `[closure]: Fn` and `[closure]: FnOnce`, omit
displaying the `[closure]: FnOnce` bound.
2017-06-14 23:33:47 +03:00

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Rust

// Copyright 2015 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.
fn bot<T>() -> T { loop {} }
fn mutate(s: &mut str) {
s[1..2] = bot();
//~^ ERROR `str: std::marker::Sized` is not satisfied
//~| ERROR `str: std::marker::Sized` is not satisfied
s[1usize] = bot();
//~^ ERROR `str: std::ops::IndexMut<usize>` is not satisfied
}
pub fn main() {}