Struct Incompressible 

pub struct Incompressible;

A strategy for encoding values that cannot be compressed.

Examples would be encrypted or random bytes. In this case, compactly abandons any attempt at compression (e.g. variable bitlength) and also adopts a faster algorithm where possible.

Note: there is a small 2-3 byte overhead (on an entire encoded value) for using Incompressible at all. So ideally you would want to use it only when the encoded size is significant (so a couple of extra bytes won’t matter) and encoding and decoding speed is important.

Trait Implementations

impl Clone for Incompressible

fn clone(&self) -> Incompressible

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Incompressible

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

Formats the value using the given formatter.

impl Default for Incompressible

fn default() -> Incompressible

Returns the “default value” for a type.

impl EncodingStrategy<Vec<u8>> for Incompressible

type Context = <Vec<u8> as Encode>::Context

The conext (i.e. probability model) for this encoding strategy applied to this type.

fn decode<R: Read>( reader: &mut Reader<R>, ctx: &mut Self::Context, ) -> Result<Vec<u8>, Error>

Decode the value using this strategy.

fn encode<W: Write>( value: &Vec<u8>, writer: &mut Writer<W>, ctx: &mut Self::Context, ) -> Result<(), Error>

Encode the value with this strategy.

fn millibits(value: &Vec<u8>, ctx: &mut Self::Context) -> Option<usize>

Estimate the size of the encoded value using this stratgy.

impl EncodingStrategy<Vec<u8>> for Incompressible

type Context = <Small as EncodingStrategy<usize>>::Context

The conext (i.e. probability model) for this encoding strategy applied to this type.

fn encode<E: EntropyCoder>( value: &Vec<u8>, writer: &mut E, ctx: &mut Self::Context, )

Encode the value with this strategy.

fn decode<D: EntropyDecoder>( reader: &mut D, ctx: &mut Self::Context, ) -> Result<Vec<u8>, Error>

Decode the value using this strategy.

impl EncodingStrategy<u16> for Incompressible

type Context = Context

The conext (i.e. probability model) for this encoding strategy applied to this type.

fn encode<W: Write>( value: &u16, writer: &mut Writer<W>, ctx: &mut Self::Context, ) -> Result<(), Error>

Encode the value with this strategy.

fn decode<R: Read>( reader: &mut Reader<R>, ctx: &mut Self::Context, ) -> Result<u16, Error>

Decode the value using this strategy.

fn millibits(value: &T, ctx: &mut Self::Context) -> Option<usize>

Estimate the size of the encoded value using this stratgy.

impl EncodingStrategy<u16> for Incompressible

type Context = ()

The conext (i.e. probability model) for this encoding strategy applied to this type.

fn encode<E: EntropyCoder>( value: &u16, writer: &mut E, _ctx: &mut Self::Context, )

Encode the value with this strategy.

fn decode<D: EntropyDecoder>( reader: &mut D, _ctx: &mut Self::Context, ) -> Result<u16, Error>

Decode the value using this strategy.

impl EncodingStrategy<u32> for Incompressible

type Context = Context

The conext (i.e. probability model) for this encoding strategy applied to this type.

fn encode<W: Write>( value: &u32, writer: &mut Writer<W>, ctx: &mut Self::Context, ) -> Result<(), Error>

Encode the value with this strategy.

fn decode<R: Read>( reader: &mut Reader<R>, ctx: &mut Self::Context, ) -> Result<u32, Error>

Decode the value using this strategy.

fn millibits(value: &T, ctx: &mut Self::Context) -> Option<usize>

Estimate the size of the encoded value using this stratgy.

impl EncodingStrategy<u32> for Incompressible

type Context = ()

The conext (i.e. probability model) for this encoding strategy applied to this type.

fn encode<E: EntropyCoder>( value: &u32, writer: &mut E, _ctx: &mut Self::Context, )

Encode the value with this strategy.

fn decode<D: EntropyDecoder>( reader: &mut D, _ctx: &mut Self::Context, ) -> Result<u32, Error>

Decode the value using this strategy.

impl EncodingStrategy<u64> for Incompressible

type Context = Context

The conext (i.e. probability model) for this encoding strategy applied to this type.

fn encode<W: Write>( value: &u64, writer: &mut Writer<W>, ctx: &mut Self::Context, ) -> Result<(), Error>

Encode the value with this strategy.

fn decode<R: Read>( reader: &mut Reader<R>, ctx: &mut Self::Context, ) -> Result<u64, Error>

Decode the value using this strategy.

fn millibits(value: &T, ctx: &mut Self::Context) -> Option<usize>

Estimate the size of the encoded value using this stratgy.

impl EncodingStrategy<u64> for Incompressible

type Context = ()

The conext (i.e. probability model) for this encoding strategy applied to this type.

fn encode<E: EntropyCoder>( value: &u64, writer: &mut E, _ctx: &mut Self::Context, )

Encode the value with this strategy.

fn decode<D: EntropyDecoder>( reader: &mut D, _ctx: &mut Self::Context, ) -> Result<u64, Error>

Decode the value using this strategy.

impl EncodingStrategy<u8> for Incompressible

type Context = ByteContext

The conext (i.e. probability model) for this encoding strategy applied to this type.

fn encode<W: Write>( value: &u8, writer: &mut Writer<W>, ctx: &mut Self::Context, ) -> Result<(), Error>

Encode the value with this strategy.

fn decode<R: Read>( reader: &mut Reader<R>, ctx: &mut Self::Context, ) -> Result<u8, Error>

Decode the value using this strategy.

fn millibits(value: &T, ctx: &mut Self::Context) -> Option<usize>

Estimate the size of the encoded value using this stratgy.

impl EncodingStrategy<u8> for Incompressible

type Context = ()

The conext (i.e. probability model) for this encoding strategy applied to this type.

fn encode<E: EntropyCoder>(value: &u8, writer: &mut E, _ctx: &mut Self::Context)

Encode the value with this strategy.

fn decode<D: EntropyDecoder>( reader: &mut D, _ctx: &mut Self::Context, ) -> Result<u8, Error>

Decode the value using this strategy.

impl Hash for Incompressible

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 Ord for Incompressible

fn cmp(&self, other: &Incompressible) -> 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 Incompressible

fn eq(&self, other: &Incompressible) -> 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 PartialOrd for Incompressible

fn partial_cmp(&self, other: &Incompressible) -> 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 Copy for Incompressible

impl Eq for Incompressible

impl StructuralPartialEq for Incompressible