bca07b5ebb
The older code would sometimes swallow errors or fail to produce a suggestion. The newer code does not. However, just printing everything would produce a bunch of new and kind of annoying errors, so continue to swallow `T: 'a` errors so long as there are other things to show.
59 lines
2.0 KiB
Rust
59 lines
2.0 KiB
Rust
// 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.
|
|
|
|
// ignore-tidy-linelength
|
|
|
|
use std::marker::PhantomData;
|
|
|
|
struct Foo<'x> { bar: isize, marker: PhantomData<&'x ()> }
|
|
fn foo1<'a>(x: &Foo) -> &'a isize {
|
|
//~^ HELP: consider using an explicit lifetime parameter as shown: fn foo1<'a>(x: &'a Foo) -> &'a isize
|
|
&x.bar //~ ERROR: cannot infer
|
|
}
|
|
|
|
fn foo2<'a, 'b>(x: &'a Foo) -> &'b isize {
|
|
//~^ HELP: consider using an explicit lifetime parameter as shown: fn foo2<'a>(x: &'a Foo) -> &'a isize
|
|
&x.bar //~ ERROR: cannot infer
|
|
}
|
|
|
|
fn foo3<'a>(x: &Foo) -> (&'a isize, &'a isize) {
|
|
//~^ HELP: consider using an explicit lifetime parameter as shown: fn foo3<'a>(x: &'a Foo) -> (&'a isize, &'a isize)
|
|
(&x.bar, &x.bar) //~ ERROR: cannot infer
|
|
//~^ ERROR: cannot infer
|
|
}
|
|
|
|
fn foo4<'a, 'b>(x: &'a Foo) -> (&'b isize, &'a isize, &'b isize) {
|
|
//~^ HELP: consider using an explicit lifetime parameter as shown: fn foo4<'a>(x: &'a Foo) -> (&'a isize, &'a isize, &'a isize)
|
|
(&x.bar, &x.bar, &x.bar) //~ ERROR: cannot infer
|
|
//~^ ERROR: cannot infer
|
|
}
|
|
|
|
struct Cat<'x, T> { cat: &'x isize, t: T }
|
|
struct Dog<'y> { dog: &'y isize }
|
|
|
|
fn cat2<'x, 'y>(x: Cat<'x, Dog<'y>>) -> &'x isize {
|
|
//~^ HELP consider using an explicit lifetime parameter as shown: fn cat2<'x>(x: Cat<'x, Dog<'x>>) -> &'x isize
|
|
x.t.dog //~ ERROR E0312
|
|
}
|
|
|
|
struct Baz<'x> {
|
|
bar: &'x isize
|
|
}
|
|
|
|
impl<'a> Baz<'a> {
|
|
fn baz2<'b>(&self, x: &isize) -> (&'b isize, &'b isize) {
|
|
//~^ HELP consider using an explicit lifetime parameter as shown: fn baz2<'b>(&self, x: &'b isize) -> (&'a isize, &'a isize)
|
|
(self.bar, x) //~ ERROR E0312
|
|
//~^ ERROR E0312
|
|
}
|
|
}
|
|
|
|
fn main() {}
|