1 // Test the simplest of outlives suggestions.
3 fn foo1<'a, 'b>(x: &'a usize) -> &'b usize {
4 x //~ERROR lifetime may not live long enough
7 fn foo2<'a>(x: &'a usize) -> &'static usize {
8 x //~ERROR lifetime may not live long enough
11 fn foo3<'a, 'b>(x: &'a usize, y: &'b usize) -> (&'b usize, &'a usize) {
12 (x, y) //~ERROR lifetime may not live long enough
13 //~^ERROR lifetime may not live long enough
16 fn foo4<'a, 'b, 'c>(x: &'a usize) -> (&'b usize, &'c usize) {
17 // FIXME: ideally, we suggest 'a: 'b + 'c, but as of today (may 04, 2019), the null error
18 // reporting stops after the first error in a MIR def so as not to produce too many errors, so
19 // currently we only report 'a: 'b. The user would then re-run and get another error.
20 (x, x) //~ERROR lifetime may not live long enough
28 pub fn foo<'a>(x: &'a usize) -> Self {
29 Foo { x } //~ERROR lifetime may not live long enough
38 pub fn get<'b>(&self) -> &'b usize {
39 self.x //~ERROR lifetime may not live long enough
43 // source: https://stackoverflow.com/questions/41417057/why-do-i-get-a-lifetime-error-when-i-use-a-mutable-reference-in-a-struct-instead
49 fn get<'b>(&'b self) -> &'a i32 {
50 self.x //~ERROR lifetime may not live long enough
54 // source: https://stackoverflow.com/questions/41204134/rust-lifetime-error
59 fn new(foo: &'a Foo2<'a>) -> Bar2<'a> {
66 cell: std::cell::Cell<&'a str>,
69 // should not produce outlives suggestions to name 'self
70 fn get_bar(&self) -> Bar2 {
71 Bar2::new(&self) //~ERROR lifetime may not live long enough