Wouldn't that be a runtime error? After all, the hash isn't even locked until lock_keys is executed at runtime.

Also, I think there is no performance penalty (except to the call to lock_keys), since I believe all lock_keys does is set the read-only flag on the hash, which is checked regardless of whether you've set lock_keys or not.

In reply to Re^2: strict "vars" mode for hash key literals? by ikegami
in thread strict "vars" mode for hash key literals? by perlancar

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