Enum Expect 

#[non_exhaustive]
pub enum Expect {
    Version(u64),
    Absent,
}

What a write expects the record to be, checked by the server: a stale write fails with a conflict naming both versions, and is never retried.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Version(u64)

Its latest version is this live one (If-Match).

Absent

It does not exist, or was deleted (If-None-Match: *).

Trait Implementations

impl Clone for Expect

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Expect

impl Debug for Expect

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

Formats the value using the given formatter.

impl Eq for Expect

impl PartialEq for Expect

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Expect