Enum rustc_mir::borrow_check::ReadOrWrite

pub(in borrow_check) enum ReadOrWrite {
    Read(ReadKind),
    Write(WriteKind),
    Reservation(WriteKind),
    Activation(WriteKind, BorrowIndex),
}

Kind of access to a value: read or write (For informational purposes only)

Variants

Read(ReadKind)

From the RFC: "A read means that the existing data may be read, but will not be changed."

Write(WriteKind)

From the RFC: "A write means that the data may be mutated to new values or otherwise invalidated (for example, it could be de-initialized, as in a move operation).

Reservation(WriteKind)

For two-phase borrows, we distinguish a reservation (which is treated like a Read) from an activation (which is treated like a write), and each of those is furthermore distinguished from Reads/Writes above.

Activation(WriteKind, BorrowIndex)

Trait Implementations

impl Clone for ReadOrWrite

pub fn clone(&self) -> ReadOrWrite

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for ReadOrWrite

impl Debug for ReadOrWrite

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ReadOrWrite

impl PartialEq<ReadOrWrite> for ReadOrWrite

pub fn eq(&self, other: &ReadOrWrite) -> bool

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

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

This method tests for !=.

impl StructuralEq for ReadOrWrite

impl StructuralPartialEq for ReadOrWrite