//@aux-build:proc_macros.rs:proc-macro #![warn(clippy::option_env_unwrap)] #![allow(clippy::map_flatten)] extern crate proc_macros; use proc_macros::{external, inline_macros}; #[inline_macros] fn main() { let _ = option_env!("PATH").unwrap(); let _ = option_env!("PATH").expect("environment variable PATH isn't set"); let _ = inline!(option_env!($"PATH").unwrap()); let _ = inline!(option_env!($"PATH").expect($"environment variable PATH isn't set")); let _ = external!(option_env!($"PATH").unwrap()); let _ = external!(option_env!($"PATH").expect($"environment variable PATH isn't set")); }