Enum std::cell::BorrowState

pub enum BorrowState {
    Reading,
    Writing,
    Unused,
}

Deprecated since 1.15.0

: use try_borrow instead

🔬 This is a nightly-only experimental API.   (borrow_state)

An enumeration of values returned from the state method on a RefCell<T>.

Variants

Reading

Deprecated since 1.15.0

: use try_borrow instead

🔬 This is a nightly-only experimental API.   (borrow_state)

The cell is currently being read, there is at least one active borrow.

Writing

Deprecated since 1.15.0

: use try_borrow instead

🔬 This is a nightly-only experimental API.   (borrow_state)

The cell is currently being written to, there is an active borrow_mut.

Unused

Deprecated since 1.15.0

: use try_borrow instead

🔬 This is a nightly-only experimental API.   (borrow_state)

There are no outstanding borrows on this cell.

Trait Implementations

impl PartialEq<BorrowState> for BorrowState

fn eq(&self, __arg_0: &BorrowState) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Clone for BorrowState

fn clone(&self) -> BorrowState

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Eq for BorrowState

impl Copy for BorrowState

impl Debug for BorrowState

fn fmt(&self, __arg_0: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.