Struct ZstdLevel 

pub struct ZstdLevel(/* private fields */);

Represents a valid zstd compression level.

Implementations

impl ZstdLevel

pub fn try_new(level: i32) -> PolarsResult<Self>

Attempts to create a zstd compression level from a given compression level.

Compression levels must be valid (i.e. be acceptable for zstd::compression_level_range).

pub fn compression_level(&self) -> i32

Returns the compression level.

Trait Implementations

impl Clone for ZstdLevel

fn clone(&self) -> ZstdLevel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl CompressionLevel<i32> for ZstdLevel

const MINIMUM_LEVEL: i32 = 1

const MAXIMUM_LEVEL: i32 = 22

fn is_valid_level(level: T) -> PolarsResult<()>

Tests if the provided compression level is valid.

impl Copy for ZstdLevel

impl Debug for ZstdLevel

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

Formats the value using the given formatter.

impl Default for ZstdLevel

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ZstdLevel

Available on crate feature serde only.

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ZstdLevel

impl Hash for ZstdLevel

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 JsonSchema for ZstdLevel

Available on crate feature dsl-schema only.

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for ZstdLevel

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ZstdLevel

Available on crate feature serde only.

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ZstdLevel