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| 1 | +// Copyright 2018 The Rust Project Developers. See the COPYRIGHT |
| 2 | +// file at the top-level directory of this distribution and at |
| 3 | +// http://rust-lang.org/COPYRIGHT. |
| 4 | +// |
| 5 | +// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| 6 | +// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| 7 | +// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| 8 | +// option. This file may not be copied, modified, or distributed |
| 9 | +// except according to those terms. |
| 10 | + |
| 11 | +// run-rustfix |
| 12 | +// compile-flags: --edition 2018 |
| 13 | + |
| 14 | +#![allow(unused)] |
| 15 | +#![deny(elided_lifetimes_in_paths)] |
| 16 | +//~^ NOTE lint level defined here |
| 17 | + |
| 18 | +use std::cell::{RefCell, Ref}; |
| 19 | + |
| 20 | + |
| 21 | +struct Foo<'a> { x: &'a u32 } |
| 22 | + |
| 23 | +fn foo(x: &Foo<'_>) { |
| 24 | + //~^ ERROR hidden lifetime parameters in types are deprecated |
| 25 | + //~| HELP indicate the anonymous lifetime |
| 26 | +} |
| 27 | + |
| 28 | +fn bar(x: &Foo<'_>) {} |
| 29 | + |
| 30 | + |
| 31 | +struct Wrapped<'a>(&'a str); |
| 32 | + |
| 33 | +struct WrappedWithBow<'a> { |
| 34 | + gift: &'a str |
| 35 | +} |
| 36 | + |
| 37 | +struct MatchedSet<'a, 'b> { |
| 38 | + one: &'a str, |
| 39 | + another: &'b str, |
| 40 | +} |
| 41 | + |
| 42 | +fn wrap_gift(gift: &str) -> Wrapped<'_> { |
| 43 | + //~^ ERROR hidden lifetime parameters in types are deprecated |
| 44 | + //~| HELP indicate the anonymous lifetime |
| 45 | + Wrapped(gift) |
| 46 | +} |
| 47 | + |
| 48 | +fn wrap_gift_with_bow(gift: &str) -> WrappedWithBow<'_> { |
| 49 | + //~^ ERROR hidden lifetime parameters in types are deprecated |
| 50 | + //~| HELP indicate the anonymous lifetime |
| 51 | + WrappedWithBow { gift } |
| 52 | +} |
| 53 | + |
| 54 | +fn inspect_matched_set(set: MatchedSet<'_, '_>) { |
| 55 | + //~^ ERROR hidden lifetime parameters in types are deprecated |
| 56 | + //~| HELP indicate the anonymous lifetime |
| 57 | + println!("{} {}", set.one, set.another); |
| 58 | +} |
| 59 | + |
| 60 | +macro_rules! autowrapper { |
| 61 | + ($type_name:ident, $fn_name:ident, $lt:lifetime) => { |
| 62 | + struct $type_name<$lt> { |
| 63 | + gift: &$lt str |
| 64 | + } |
| 65 | + |
| 66 | + fn $fn_name(gift: &str) -> $type_name<'_> { |
| 67 | + //~^ ERROR hidden lifetime parameters in types are deprecated |
| 68 | + //~| HELP indicate the anonymous lifetime |
| 69 | + $type_name { gift } |
| 70 | + } |
| 71 | + } |
| 72 | +} |
| 73 | + |
| 74 | +autowrapper!(Autowrapped, autowrap_gift, 'a); |
| 75 | +//~^ NOTE in this expansion of autowrapper! |
| 76 | +//~| NOTE in this expansion of autowrapper! |
| 77 | + |
| 78 | +macro_rules! anytuple_ref_ty { |
| 79 | + ($($types:ty),*) => { |
| 80 | + Ref<'_, ($($types),*)> |
| 81 | + //~^ ERROR hidden lifetime parameters in types are deprecated |
| 82 | + //~| HELP indicate the anonymous lifetime |
| 83 | + } |
| 84 | +} |
| 85 | + |
| 86 | +fn main() { |
| 87 | + let honesty = RefCell::new((4, 'e')); |
| 88 | + let loyalty: Ref<'_, (u32, char)> = honesty.borrow(); |
| 89 | + //~^ ERROR hidden lifetime parameters in types are deprecated |
| 90 | + //~| HELP indicate the anonymous lifetime |
| 91 | + let generosity = Ref::map(loyalty, |t| &t.0); |
| 92 | + |
| 93 | + let laughter = RefCell::new((true, "magic")); |
| 94 | + let yellow: anytuple_ref_ty!(bool, &str) = laughter.borrow(); |
| 95 | + //~^ NOTE in this expansion of anytuple_ref_ty! |
| 96 | + //~| NOTE in this expansion of anytuple_ref_ty! |
| 97 | +} |
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