If you were really reviewing that code, Rust has algebraic data types, and access level should be an Enum, not a String. But it's their example. The problem is

If you were really reviewing that code, Rust has algebraic data types, and access level should be an Enum, not a String. But it's their example. The problem isn't with homoglyphs, though. It's with bidi control characters, which are invisible to a human but not to the compiler, which is how generated code can end up semantically different from source code, which is the actual problem here. What you see in code review would be the first line, even though that isn't actually what is in the source, because an editor that is bidi-aware would show it that way.