When people talk about "exceptions", they mean resumable exceptions that are intended to be caught. But "catching" an unwinding panic in Rust is so (deliberatel

When people talk about "exceptions", they mean resumable exceptions that are intended to be caught. But "catching" an unwinding panic in Rust is so (deliberately!) limited, cumbersome, and unidiomatic that it doesn't qualify as an implementation of resumable exceptions. The only reason the ability to "catch" an unwinding panic even exists in Rust is to prevent unwinding across FFI boundaries, which would be UB; it's a correctness mechanism, not an error-handling mechanism.