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: TTrait Implementations§
Source§impl CompactLen<u128> for Compact<u128>
impl CompactLen<u128> for Compact<u128>
Source§fn compact_len(val: &u128) -> usize
fn compact_len(val: &u128) -> usize
Returns the compact encoded length for the given value.
Source§impl CompactLen<u16> for Compact<u16>
impl CompactLen<u16> for Compact<u16>
Source§fn compact_len(val: &u16) -> usize
fn compact_len(val: &u16) -> usize
Returns the compact encoded length for the given value.
Source§impl CompactLen<u32> for Compact<u32>
impl CompactLen<u32> for Compact<u32>
Source§fn compact_len(val: &u32) -> usize
fn compact_len(val: &u32) -> usize
Returns the compact encoded length for the given value.
Source§impl CompactLen<u64> for Compact<u64>
impl CompactLen<u64> for Compact<u64>
Source§fn compact_len(val: &u64) -> usize
fn compact_len(val: &u64) -> usize
Returns the compact encoded length for the given value.
Source§impl CompactLen<u8> for Compact<u8>
impl CompactLen<u8> for Compact<u8>
Source§fn compact_len(val: &u8) -> usize
fn compact_len(val: &u8) -> usize
Returns the compact encoded length for the given value.
Source§impl Decode for Compact<()>
impl Decode for Compact<()>
Source§fn decode<I>(_input: &mut I) -> Result<Compact<()>, Error>where
I: Input,
fn decode<I>(_input: &mut I) -> Result<Compact<()>, Error>where
I: Input,
Attempt to deserialise the value from input.
Source§fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
Attempt to deserialize the value from input into a pre-allocated piece of memory. Read more
Source§impl<T> Decode for Compact<T>
impl<T> Decode for Compact<T>
Source§fn decode<I>(input: &mut I) -> Result<Compact<T>, Error>where
I: Input,
fn decode<I>(input: &mut I) -> Result<Compact<T>, Error>where
I: Input,
Attempt to deserialise the value from input.
Source§fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
Attempt to deserialize the value from input into a pre-allocated piece of memory. Read more
Source§impl Decode for Compact<u128>
impl Decode for Compact<u128>
Source§fn decode<I>(input: &mut I) -> Result<Compact<u128>, Error>where
I: Input,
fn decode<I>(input: &mut I) -> Result<Compact<u128>, Error>where
I: Input,
Attempt to deserialise the value from input.
Source§fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
Attempt to deserialize the value from input into a pre-allocated piece of memory. Read more
Source§impl Decode for Compact<u16>
impl Decode for Compact<u16>
Source§fn decode<I>(input: &mut I) -> Result<Compact<u16>, Error>where
I: Input,
fn decode<I>(input: &mut I) -> Result<Compact<u16>, Error>where
I: Input,
Attempt to deserialise the value from input.
Source§fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
Attempt to deserialize the value from input into a pre-allocated piece of memory. Read more
Source§impl Decode for Compact<u32>
impl Decode for Compact<u32>
Source§fn decode<I>(input: &mut I) -> Result<Compact<u32>, Error>where
I: Input,
fn decode<I>(input: &mut I) -> Result<Compact<u32>, Error>where
I: Input,
Attempt to deserialise the value from input.
Source§fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
Attempt to deserialize the value from input into a pre-allocated piece of memory. Read more
Source§impl Decode for Compact<u64>
impl Decode for Compact<u64>
Source§fn decode<I>(input: &mut I) -> Result<Compact<u64>, Error>where
I: Input,
fn decode<I>(input: &mut I) -> Result<Compact<u64>, Error>where
I: Input,
Attempt to deserialise the value from input.
Source§fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
Attempt to deserialize the value from input into a pre-allocated piece of memory. Read more
Source§impl Decode for Compact<u8>
impl Decode for Compact<u8>
Source§fn decode<I>(input: &mut I) -> Result<Compact<u8>, Error>where
I: Input,
fn decode<I>(input: &mut I) -> Result<Compact<u8>, Error>where
I: Input,
Attempt to deserialise the value from input.
Source§fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
Attempt to deserialize the value from input into a pre-allocated piece of memory. Read more
Source§impl<'de, T> Deserialize<'de> for Compact<T>where
T: Deserialize<'de>,
impl<'de, T> Deserialize<'de> for Compact<T>where
T: Deserialize<'de>,
Source§fn deserialize<D>(
deserializer: D,
) -> Result<Compact<T>, <D as Deserializer<'de>>::Error>where
D: Deserializer<'de>,
fn deserialize<D>(
deserializer: D,
) -> Result<Compact<T>, <D as Deserializer<'de>>::Error>where
D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
Source§impl<T> Encode for Compact<T>where
CompactRef<'a, T>: for<'a> Encode,
impl<T> Encode for Compact<T>where
CompactRef<'a, T>: for<'a> Encode,
Source§fn size_hint(&self) -> usize
fn size_hint(&self) -> usize
If possible give a hint of expected size of the encoding. Read more
Source§fn encode_to<W>(&self, dest: &mut W)
fn encode_to<W>(&self, dest: &mut W)
Convert self to a slice and append it to the destination.
Source§fn using_encoded<R, F>(&self, f: F) -> R
fn using_encoded<R, F>(&self, f: F) -> R
Convert self to a slice and then invoke the given closure with it.
Source§fn encoded_size(&self) -> usize
fn encoded_size(&self) -> usize
Calculates the encoded size. Read more
Source§impl<'a, T> EncodeAsRef<'a, T> for Compact<T>
impl<'a, T> EncodeAsRef<'a, T> for Compact<T>
Source§type RefType = CompactRef<'a, T>
type RefType = CompactRef<'a, T>
The reference type that is used for encoding.
Source§impl<T> EncodeAsType for Compact<T>where
T: EncodeAsType,
impl<T> EncodeAsType for Compact<T>where
T: EncodeAsType,
Source§fn encode_as_type_to<R>(
&self,
type_id: <R as TypeResolver>::TypeId,
types: &R,
out: &mut Vec<u8>,
) -> Result<(), Error>where
R: TypeResolver,
fn encode_as_type_to<R>(
&self,
type_id: <R as TypeResolver>::TypeId,
types: &R,
out: &mut Vec<u8>,
) -> Result<(), Error>where
R: TypeResolver,
Given some
type_id, types, a context and some output target for the SCALE encoded bytes,
attempt to SCALE encode the current value into the type given by type_id.Source§fn encode_as_type<R>(
&self,
type_id: <R as TypeResolver>::TypeId,
types: &R,
) -> Result<Vec<u8>, Error>where
R: TypeResolver,
fn encode_as_type<R>(
&self,
type_id: <R as TypeResolver>::TypeId,
types: &R,
) -> Result<Vec<u8>, Error>where
R: TypeResolver,
This is a helper function which internally calls
EncodeAsType::encode_as_type_to. Prefer to
implement that instead.Source§impl<T> IntoVisitor for Compact<T>where
T: IntoVisitor,
impl<T> IntoVisitor for Compact<T>where
T: IntoVisitor,
Source§type AnyVisitor<R: TypeResolver> = BasicVisitor<Compact<T>, R>
type AnyVisitor<R: TypeResolver> = BasicVisitor<Compact<T>, R>
The visitor type used to decode SCALE encoded bytes to
Self.Source§fn into_visitor<R>() -> <Compact<T> as IntoVisitor>::AnyVisitor<R>where
R: TypeResolver,
fn into_visitor<R>() -> <Compact<T> as IntoVisitor>::AnyVisitor<R>where
R: TypeResolver,
A means of obtaining this visitor.
Source§impl MaxEncodedLen for Compact<()>
impl MaxEncodedLen for Compact<()>
Source§fn max_encoded_len() -> usize
fn max_encoded_len() -> usize
Upper bound, in bytes, of the maximum encoded size of this item.
Source§impl MaxEncodedLen for Compact<u128>
impl MaxEncodedLen for Compact<u128>
Source§fn max_encoded_len() -> usize
fn max_encoded_len() -> usize
Upper bound, in bytes, of the maximum encoded size of this item.
Source§impl MaxEncodedLen for Compact<u16>
impl MaxEncodedLen for Compact<u16>
Source§fn max_encoded_len() -> usize
fn max_encoded_len() -> usize
Upper bound, in bytes, of the maximum encoded size of this item.
Source§impl MaxEncodedLen for Compact<u32>
impl MaxEncodedLen for Compact<u32>
Source§fn max_encoded_len() -> usize
fn max_encoded_len() -> usize
Upper bound, in bytes, of the maximum encoded size of this item.
Source§impl MaxEncodedLen for Compact<u64>
impl MaxEncodedLen for Compact<u64>
Source§fn max_encoded_len() -> usize
fn max_encoded_len() -> usize
Upper bound, in bytes, of the maximum encoded size of this item.
Source§impl MaxEncodedLen for Compact<u8>
impl MaxEncodedLen for Compact<u8>
Source§fn max_encoded_len() -> usize
fn max_encoded_len() -> usize
Upper bound, in bytes, of the maximum encoded size of this item.
Source§impl<T> Ord for Compact<T>where
T: Ord,
impl<T> Ord for Compact<T>where
T: Ord,
1.21.0 · Source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the maximum of two values. Read more
Source§impl<T> PartialOrd for Compact<T>where
T: PartialOrd,
impl<T> PartialOrd for Compact<T>where
T: PartialOrd,
Source§impl<T> Serialize for Compact<T>where
T: Serialize,
impl<T> Serialize for Compact<T>where
T: Serialize,
Source§fn serialize<S>(
&self,
serializer: S,
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>where
S: Serializer,
fn serialize<S>(
&self,
serializer: S,
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>where
S: Serializer,
Serialize this value into the given Serde serializer. Read more
impl<T> Copy for Compact<T>where
T: Copy,
impl DecodeWithMemTracking for Compact<()>
impl<T> DecodeWithMemTracking for Compact<T>
impl DecodeWithMemTracking for Compact<u128>
impl DecodeWithMemTracking for Compact<u16>
impl DecodeWithMemTracking for Compact<u32>
impl DecodeWithMemTracking for Compact<u64>
impl DecodeWithMemTracking for Compact<u8>
impl<T> EncodeLike for Compact<T>where
CompactRef<'a, T>: for<'a> Encode,
impl<T> Eq for Compact<T>where
T: Eq,
impl<T> StructuralPartialEq for Compact<T>
Auto Trait Implementations§
impl<T> Freeze for Compact<T>where
T: Freeze,
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§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> DecodeAsType for Twhere
T: IntoVisitor,
impl<T> DecodeAsType for Twhere
T: IntoVisitor,
fn decode_as_type_maybe_compact<R>(
input: &mut &[u8],
type_id: <R as TypeResolver>::TypeId,
types: &R,
is_compact: bool,
) -> Result<T, Error>where
R: TypeResolver,
Source§fn decode_as_type<R>(
input: &mut &[u8],
type_id: <R as TypeResolver>::TypeId,
types: &R,
) -> Result<Self, Error>where
R: TypeResolver,
fn decode_as_type<R>(
input: &mut &[u8],
type_id: <R as TypeResolver>::TypeId,
types: &R,
) -> Result<Self, Error>where
R: TypeResolver,
Given some input bytes, a
type_id, and type registry, attempt to decode said bytes into
Self. Implementations should modify the &mut reference to the bytes such that any bytes
not used in the course of decoding are still pointed to after decoding is complete.Source§impl<T> DecodeLimit for Twhere
T: Decode,
impl<T> DecodeLimit for Twhere
T: Decode,
Source§impl<T> DecodeWithMemLimit for Twhere
T: DecodeWithMemTracking,
impl<T> DecodeWithMemLimit for Twhere
T: DecodeWithMemTracking,
Source§impl<T> DecodeWithMetadata for Twhere
T: DecodeAsType,
impl<T> DecodeWithMetadata for Twhere
T: DecodeAsType,
Source§impl<T> EncodeWithMetadata for Twhere
T: EncodeAsType,
impl<T> EncodeWithMetadata for Twhere
T: EncodeAsType,
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<T> FmtForward for T
impl<T> FmtForward for T
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Self: Binary,
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Self: Binary,
Causes
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Self: Display,
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Self: LowerExp,
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Self: LowerExp,
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Self: LowerHex,
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Self: LowerHex,
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Self: Octal,
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Self: Pointer,
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Self: UpperExp,
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Self: UpperHex,
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