Struct NonNull 

pub struct NonNull;

Invariant ZST indicating this key does not contain any null bytes.

Allows a null byte to be internally appended to each key, which guarantees the prefix property and does not change the lexicographic ordering of the key.

Trait Implementations

impl Clone for NonNull

fn clone(&self) -> NonNull

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for NonNull

impl Debug for NonNull

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

Formats the value using the given formatter.

impl Default for NonNull

fn default() -> NonNull

Returns the “default value” for a type.

impl Eq for NonNull

impl Hash for NonNull

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Invariant for NonNull

type Error = NonNullError

Validation error.

type Terminate = bool

Implementation detail: some invariants append a logical terminator byte to the end of each key.

fn validate(key: &[u8]) -> Result<(), Self::Error>

Returns Ok(()) if and only if key satisfies this invariant.

impl Ord for NonNull

fn cmp(&self, other: &NonNull) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for NonNull

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for NonNull

fn partial_cmp(&self, other: &NonNull) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for NonNull