// Attempt to extend the lifetime as well as unsizing. #![feature(unsized_tuple_coercion)] struct Fat { ptr: T } struct Foo; trait Bar { fn bar(&self) {} } impl Bar for Foo {} fn baz<'a>() { // With a vec of ints. let f1 = Fat { ptr: [1, 2, 3] }; let f2: &Fat<[isize; 3]> = &f1; //~ ERROR `f1` does not live long enough let f3: &'a Fat<[isize]> = f2; // With a trait. let f1 = Fat { ptr: Foo }; let f2: &Fat = &f1; //~ ERROR `f1` does not live long enough let f3: &'a Fat = f2; // Tuple with a vec of ints. let f1 = ([1, 2, 3],); let f2: &([isize; 3],) = &f1; //~ ERROR `f1` does not live long enough let f3: &'a ([isize],) = f2; // Tuple with a trait. let f1 = (Foo,); let f2: &(Foo,) = &f1; //~ ERROR `f1` does not live long enough let f3: &'a (dyn Bar,) = f2; } pub fn main() { baz(); }