Unwrapping the result of option_env! will panic at runtime if the environment variable doesn’t exist, whereas env!
catches it at compile-time, ensuring safer code execution.
Code examples
Noncompliant code example
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let _ = option_env!("HOME").unwrap(); // Noncompliant: Can panic at runtime.
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Compliant solution
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let _ = env!("HOME"); // Compliant: Ensures compile-time checking.
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