rust/tests/ui/auxiliary/macro_rules.rs
2020-02-09 10:58:08 -08:00

59 lines
1.0 KiB
Rust

#![allow(dead_code)]
//! Used to test that certain lints don't trigger in imported external macros
#[macro_export]
macro_rules! foofoo {
() => {
loop {}
};
}
#[macro_export]
macro_rules! must_use_unit {
() => {
#[must_use]
fn foo() {}
};
}
#[macro_export]
macro_rules! try_err {
() => {
pub fn try_err_fn() -> Result<i32, i32> {
let err: i32 = 1;
// To avoid warnings during rustfix
if true {
Err(err)?
} else {
Ok(2)
}
}
};
}
#[macro_export]
macro_rules! string_add {
() => {
let y = "".to_owned();
let z = y + "...";
};
}
#[macro_export]
macro_rules! take_external {
($s:expr) => {
std::mem::replace($s, Default::default())
};
}
#[macro_export]
macro_rules! option_env_unwrap_external {
($env: expr) => {
option_env!($env).unwrap()
};
($env: expr, $message: expr) => {
option_env!($env).expect($message)
};
}