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// run-pass
#![allow(dead_code)]
#![allow(unused_mut)]
#![allow(unused_variables)]
#![deny(non_snake_case)]
#![feature(stmt_expr_attributes)]
fn main() {
let a = 413;
#[cfg(unset)]
let a = ();
assert_eq!(a, 413);
let mut b = 612;
#[cfg(unset)]
{
b = 1111;
}
assert_eq!(b, 612);
#[cfg(unset)]
undefined_fn();
#[cfg(unset)]
undefined_macro!();
#[cfg(unset)]
undefined_macro![];
#[cfg(unset)]
undefined_macro!{};
// pretty printer bug...
// #[cfg(unset)]
// undefined_macro!{}
let () = (#[cfg(unset)] 341,); // Should this also work on parens?
let t = (1, #[cfg(unset)] 3, 4);
assert_eq!(t, (1, 4));
let f = |_: u32, _: u32| ();
f(2, 1, #[cfg(unset)] 6);
let _: u32 = a.clone(#[cfg(unset)] undefined);
let _: [(); 0] = [#[cfg(unset)] 126];
let t = [#[cfg(unset)] 1, 2, 6];
assert_eq!(t, [2, 6]);
{
let r;
#[cfg(unset)]
(r = 5);
#[cfg(not(unset))]
(r = 10);
assert_eq!(r, 10);
}
// check that macro expanded code works
macro_rules! if_cfg {
($cfg:meta? $ib:block else $eb:block) => {
{
let r;
#[cfg($cfg)]
(r = $ib);
#[cfg(not($cfg))]
(r = $eb);
r
}
}
}
let n = if_cfg!(unset? {
413
} else {
612
});
assert_eq!((#[cfg(unset)] 1, #[cfg(not(unset))] 2), (2,));
assert_eq!(n, 612);
// check that lints work
#[allow(non_snake_case)]
let FOOBAR = {
fn SYLADEX() {}
};
#[allow(non_snake_case)]
{
fn CRUXTRUDER() {}
}
}
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