Enum rustc_mir::borrow_check::ReadOrWrite

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

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

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

Variants

Read(ReadKind)

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

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

Write(WriteKind)

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

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)

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

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)

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Trait Implementations

impl Copy for ReadOrWrite

impl Clone for ReadOrWrite

fn clone(&self) -> ReadOrWrite

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for ReadOrWrite

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

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

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

This method tests for !=.

impl Eq for ReadOrWrite

fn assert_receiver_is_total_eq(&self)

impl Debug for ReadOrWrite

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.