Rust

try-catch hack.rs

macro_rules! try_catch {
    ($try_block:expr, $catch_block:expr) => {
        match (|| {
            $try_block
            Ok::<(), Box<dyn std::error::Error>>(())
        })() {
            Ok(_) => {}
            Err(e) => $catch_block(e),
        }
    };
}

fn do_something() -> Result<(), &'static str> {
    return Err("An error occurred");
}

fn main() {
    try_catch!(
        {
            do_something()?;
            println!("Operation succeeded");
        },
        |e| {
            println!("Error: {}", e);
        }
    );
}

not recommended