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// Test closure that:
//
// - captures a variable `y` by reference
// - stores that reference to `y` into another, longer-lived place (`p`)
//
// Both of these are upvars of reference type (the capture of `y` is
// of type `&'a i32`, the capture of `p` is of type `&mut &'b
// i32`). The closure thus computes a relationship between `'a` and
// `'b`. This relationship is propagated to the closure creator,
// which reports an error.
// compile-flags:-Zverbose
#![feature(rustc_attrs)]
#[rustc_regions]
fn test() {
let x = 44;
let mut p = &x;
{
let y = 22;
let mut closure = || p = &y;
//~^ ERROR `y` does not live long enough [E0597]
closure();
}
deref(p);
}
fn deref(_p: &i32) { }
fn main() { }
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