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25 lines
715 B
Rust
25 lines
715 B
Rust
// aux-build:macro_rules.rs
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#![warn(clippy::option_env_unwrap)]
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#![allow(clippy::map_flatten)]
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#[macro_use]
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extern crate macro_rules;
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macro_rules! option_env_unwrap {
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($env: expr) => {
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option_env!($env).unwrap()
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};
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($env: expr, $message: expr) => {
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option_env!($env).expect($message)
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};
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}
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fn main() {
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let _ = option_env!("PATH").unwrap();
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let _ = option_env!("PATH").expect("environment variable PATH isn't set");
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let _ = option_env_unwrap!("PATH");
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let _ = option_env_unwrap!("PATH", "environment variable PATH isn't set");
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let _ = option_env_unwrap_external!("PATH");
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let _ = option_env_unwrap_external!("PATH", "environment variable PATH isn't set");
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}
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