// Test that we give a custom error (E0373) for the case where a | |
// closure is escaping current frame, and offer a suggested code edit. | |
// I refrained from including the precise message here, but the | |
// original text as of the time of this writing is: | |
// | |
// closure may outlive the current function, but it borrows `books`, | |
// which is owned by the current function | |
fn foo<'a>(x: &'a i32) -> Box<dyn FnMut() + 'a> { | |
let mut books = vec![1,2,3]; | |
Box::new(|| books.push(4)) | |
//~^ ERROR E0373 | |
} | |
fn main() { } |