If

xelf

Macro If 

Source 
macro_rules! If {
    ($condition:expr, $if_true:expr, $if_false:expr $(,)?) => { ... };
}
Expand description

Simplify an “if” expression

§Examples

use xelf::If;

assert_eq!(If!(true, "A", "B"), "A");
assert_eq!(If!(false, "A", "B"), "B");