Struct EncodingPreservation 

pub struct EncodingPreservation { /* private fields */ }

Controls whether a Coercion preserves an argument’s physical encoding (e.g. dictionary) instead of materializing it to the coerced value type.

Implementations

impl EncodingPreservation

pub const fn dictionary() -> Self

Preserve dictionary encoding and coerce only the dictionary values.

pub const fn with_dictionary(self) -> Self

Preserve dictionary encoding and coerce only the dictionary values.

pub const fn preserve_dictionary(self) -> bool

Returns whether dictionary encoding should be preserved.

Trait Implementations

impl Clone for EncodingPreservation

fn clone(&self) -> EncodingPreservation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for EncodingPreservation

impl Debug for EncodingPreservation

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

Formats the value using the given formatter.

impl Default for EncodingPreservation

fn default() -> EncodingPreservation

Returns the “default value” for a type.

impl Eq for EncodingPreservation

impl Hash for EncodingPreservation

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 PartialEq for EncodingPreservation

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for EncodingPreservation

fn partial_cmp(&self, other: &EncodingPreservation) -> 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 EncodingPreservation