Struct parity_scale_codec::Compact

source · [−]

pub struct Compact<T>(pub T);

Expand description

Compact-encoded variant of T. This is more space-efficient but less compute-efficient.

Tuple Fields

0: T

Trait Implementations

impl<T: Clone> Clone for Compact<T>

fn clone(&self) -> Compact<T>

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

impl CompactLen<u128> for Compact<u128>

fn compact_len(val: &u128) -> usize

Returns the compact encoded length for the given value.

impl CompactLen<u16> for Compact<u16>

fn compact_len(val: &u16) -> usize

Returns the compact encoded length for the given value.

impl CompactLen<u32> for Compact<u32>

fn compact_len(val: &u32) -> usize

Returns the compact encoded length for the given value.

impl CompactLen<u64> for Compact<u64>

fn compact_len(val: &u64) -> usize

Returns the compact encoded length for the given value.

impl CompactLen<u8> for Compact<u8>

fn compact_len(val: &u8) -> usize

Returns the compact encoded length for the given value.

impl<T> Debug for Compact<T> where
T: Debug,

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

Formats the value using the given formatter. Read more

impl<T> Decode for Compact<T> where
T: CompactAs,
Compact<T::As>: Decode,

fn decode<I: Input>(input: &mut I) -> Result<Self, Error>

Attempt to deserialise the value from input.

impl Decode for Compact<()>

fn decode<I: Input>(_input: &mut I) -> Result<Self, Error>

Attempt to deserialise the value from input.

impl Decode for Compact<u8>

fn decode<I: Input>(input: &mut I) -> Result<Self, Error>

Attempt to deserialise the value from input.

impl Decode for Compact<u16>

fn decode<I: Input>(input: &mut I) -> Result<Self, Error>

Attempt to deserialise the value from input.

impl Decode for Compact<u32>

fn decode<I: Input>(input: &mut I) -> Result<Self, Error>

Attempt to deserialise the value from input.

impl Decode for Compact<u64>

fn decode<I: Input>(input: &mut I) -> Result<Self, Error>

Attempt to deserialise the value from input.

impl Decode for Compact<u128>

fn decode<I: Input>(input: &mut I) -> Result<Self, Error>

Attempt to deserialise the value from input.

impl<'de, T> Deserialize<'de> for Compact<T> where
T: Deserialize<'de>,

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where
D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

impl<T> Encode for Compact<T> where
for<'a> CompactRef<'a, T>: Encode,

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding. Read more

fn encode_to<W: Output>(&self, dest: &mut W)

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A> where A: Allocator,`

Convert self to an owned vector.

fn using_encoded<R, F: FnOnce(&[u8 ]) -> R>(&self, f: F) -> R

Convert self to a slice and then invoke the given closure with it.

impl<'a, T: 'a> EncodeAsRef<'a, T> for Compact<T> where
CompactRef<'a, T>: Encode + From<&'a T>,

type RefType = CompactRef<'a, T>

The reference type that is used for encoding.

impl<'a, T: Copy> From<&'a T> for Compact<T>

fn from(x: &'a T) -> Compact<T>

Performs the conversion.

impl From<Compact<()>> for ()

fn from(x: Compact<()>)

Performs the conversion.

impl From<Compact<u128>> for u128

fn from(x: Compact<u128>) -> u128

Performs the conversion.

impl From<Compact<u16>> for u16

fn from(x: Compact<u16>) -> u16

Performs the conversion.

impl From<Compact<u32>> for u32

fn from(x: Compact<u32>) -> u32

Performs the conversion.

impl From<Compact<u64>> for u64

fn from(x: Compact<u64>) -> u64

Performs the conversion.

impl From<Compact<u8>> for u8

fn from(x: Compact<u8>) -> u8

Performs the conversion.

impl<T> From<T> for Compact<T>

fn from(x: T) -> Compact<T>

Performs the conversion.

impl<T: Ord> Ord for Compact<T>

fn cmp(&self, other: &Compact<T>) -> Ordering

This method returns an Ordering between self and other. Read more

1.21.0 · source

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

Compares and returns the maximum of two values. Read more

1.21.0 · source

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

Compares and returns the minimum of two values. Read more

1.50.0 · source

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

Restrict a value to a certain interval. Read more

impl<T: PartialEq> PartialEq<Compact<T>> for Compact<T>

fn eq(&self, other: &Compact<T>) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

fn ne(&self, other: &Compact<T>) -> bool

This method tests for !=.

impl<T: PartialOrd> PartialOrd<Compact<T>> for Compact<T>

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

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

1.0.0 · source

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

This method tests less than (for self and other) and is used by the < operator. Read more

1.0.0 · source

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

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

1.0.0 · source

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

This method tests greater than (for self and other) and is used by the > operator. Read more

1.0.0 · source

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

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

impl<T> Serialize for Compact<T> where
T: Serialize,

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where
S: Serializer,

Serialize this value into the given Serde serializer. Read more

impl<T: Copy> Copy for Compact<T>

impl<T> EncodeLike<Compact<T>> for Compact<T> where
for<'a> CompactRef<'a, T>: Encode,

impl<T: Eq> Eq for Compact<T>

impl<T> StructuralEq for Compact<T>

impl<T> StructuralPartialEq for Compact<T>

Auto Trait Implementations

impl<T> RefUnwindSafe for Compact<T> where
T: RefUnwindSafe,

impl<T> Send for Compact<T> where
T: Send,

impl<T> Sync for Compact<T> where
T: Sync,

impl<T> Unpin for Compact<T> where
T: Unpin,

impl<T> UnwindSafe for Compact<T> where
T: UnwindSafe,

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<!> for T

const: unstable · source

pub fn from(t: !) -> T

Performs the conversion.

impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> DeserializeOwned for T where
T: for<'de> Deserialize<'de>,