Enum CodecId 

pub enum CodecId {
    None,
    Named(String),
}

Identifies which compression codec was used for a block.

None means the block is stored uncompressed. Named allows registering custom codecs by string identifier without modifying this enum.

Variants

None

No compression applied.

Named(String)

A named compression codec (e.g. "zstd", "lz4").

Trait Implementations

impl Archive for CodecId

where String: Archive,

type Archived = ArchivedCodecId

The archived representation of this type.

type Resolver = CodecIdResolver

The resolver for this type. It must contain all the additional information from serializing needed to make the archived type from the normal type.

fn resolve( &self, resolver: <Self as Archive>::Resolver, out: Place<<Self as Archive>::Archived>, )

Creates the archived version of this value at the given position and writes it to the given output.

const COPY_OPTIMIZATION: CopyOptimization<Self> = _

An optimization flag that allows the bytes of this type to be copied directly to a writer instead of calling serialize.

impl Clone for CodecId

fn clone(&self) -> CodecId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CodecId

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

Formats the value using the given formatter.

impl<__D: Fallible + ?Sized> Deserialize<CodecId, __D> for Archived<CodecId>

where String: Archive, <String as Archive>::Archived: Deserialize<String, __D>,

fn deserialize( &self, deserializer: &mut __D, ) -> Result<CodecId, <__D as Fallible>::Error>

Deserializes using the given deserializer

impl PartialEq for CodecId

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<__S: Fallible + ?Sized> Serialize<__S> for CodecId

where String: Serialize<__S>,

fn serialize( &self, serializer: &mut __S, ) -> Result<<Self as Archive>::Resolver, <__S as Fallible>::Error>

Writes the dependencies for the object and returns a resolver that can create the archived type.

impl StructuralPartialEq for CodecId