3 fn elided(x: &i32) -> impl Copy { x }
4 //~^ ERROR: captures lifetime that does not appear in bounds
6 fn explicit<'a>(x: &'a i32) -> impl Copy { x }
7 //~^ ERROR: captures lifetime that does not appear in bounds
9 fn elided2(x: &i32) -> impl Copy + 'static { x } //~ ERROR E0759
11 fn explicit2<'a>(x: &'a i32) -> impl Copy + 'static { x } //~ ERROR E0759
13 fn foo<'a>(x: &i32) -> impl Copy + 'a { x }
14 //~^ ERROR explicit lifetime required in the type of `x`
16 fn elided3(x: &i32) -> Box<dyn Debug> { Box::new(x) } //~ ERROR E0759
18 fn explicit3<'a>(x: &'a i32) -> Box<dyn Debug> { Box::new(x) } //~ ERROR E0759
20 fn elided4(x: &i32) -> Box<dyn Debug + 'static> { Box::new(x) } //~ ERROR E0759
22 fn explicit4<'a>(x: &'a i32) -> Box<dyn Debug + 'static> { Box::new(x) } //~ ERROR E0759
24 fn elided5(x: &i32) -> (Box<dyn Debug>, impl Debug) { (Box::new(x), x) } //~ ERROR E0759
26 trait LifetimeTrait<'a> {}
27 impl<'a> LifetimeTrait<'a> for &'a i32 {}
29 fn with_bound<'a>(x: &'a i32) -> impl LifetimeTrait<'a> + 'static { x } //~ ERROR E0759
31 // Tests that a closure type containing 'b cannot be returned from a type where
32 // only 'a was expected.
33 fn move_lifetime_into_fn<'a, 'b>(x: &'a u32, y: &'b u32) -> impl Fn(&'a u32) {
34 //~^ ERROR: captures lifetime that does not appear in bounds
35 move |_| println!("{}", y)
38 fn ty_param_wont_outlive_static<T:Debug>(x: T) -> impl Debug + 'static {
39 //~^ ERROR the parameter type `T` may not live long enough