rust/tests/ui/for-loop-while/while-prelude-drop.rs
2023-01-11 09:32:08 +00:00

25 lines
433 B
Rust

// run-pass
#![allow(non_camel_case_types)]
use std::string::String;
#[derive(PartialEq)]
enum t { a, b(String), }
fn make(i: isize) -> t {
if i > 10 { return t::a; }
let mut s = String::from("hello");
// Ensure s is non-const.
s.push_str("there");
return t::b(s);
}
pub fn main() {
let mut i = 0;
// The auto slot for the result of make(i) should not leak.
while make(i) != t::a { i += 1; }
}