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#![allow(incomplete_features)]
#![feature(unsized_locals, unsized_fn_params)]
use std::fmt;
fn gen_foo() -> Box<fmt::Display> {
Box::new(Box::new("foo"))
}
fn foo(x: fmt::Display) {
assert_eq!(x.to_string(), "foo");
}
fn foo_indirect(x: fmt::Display) {
foo(x);
}
fn main() {
foo(*gen_foo());
foo_indirect(*gen_foo());
{
let x: fmt::Display = *gen_foo();
foo(x);
}
{
let x: fmt::Display = *gen_foo();
let y: fmt::Display = *gen_foo();
foo(x);
foo(y);
}
{
let mut cnt: usize = 3;
let x = loop {
let x: fmt::Display = *gen_foo();
if cnt == 0 {
break x;
} else {
cnt -= 1;
}
};
foo(x);
}
{
let x: fmt::Display = *gen_foo();
let x = if true { x } else { *gen_foo() };
foo(x);
}
}
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