Answers for "rust•armanriazi•error•panicked at 'already borrowed: BorrowMutError'"

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rust•armanriazi•error•panicked•at 'already borrowed: BorrowMutError'

If we try to violate these rules, rather than getting a compiler error as we would with references, the implementation of RefCell<T> will panic at runtime.
We’re deliberately trying to create two mutable borrows active for the same scope to illustrate that RefCell<T> prevents us from doing this at runtime.
 //+//let mut one_borrow = self.sent_messages.borrow_mut();
 //-//let mut two_borrow = self.sent_messages.borrow_mut();
Posted by: Guest on March-25-2022

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