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// revisions: ast mir
//[mir]compile-flags: -Z borrowck=mir
#![feature(rustc_attrs)]
enum Sexpression {
Num(()),
Cons(&'static mut Sexpression)
}
fn causes_error_in_ast(mut l: &mut Sexpression) {
loop { match l {
&mut Sexpression::Num(ref mut n) => {},
&mut Sexpression::Cons(ref mut expr) => { //[ast]~ ERROR [E0499]
l = &mut **expr; //[ast]~ ERROR [E0506]
}
}}
}
#[rustc_error]
fn main() { //[mir]~ ERROR compilation successful
}
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