parity_scale_codec

Struct CompactRef

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pub struct CompactRef<'a, T>(pub &'a T);
Expand description

Compact-encoded variant of &’a T. This is more space-efficient but less compute-efficient.

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§0: &'a T

Trait Implementations§

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impl<'a, T: Clone> Clone for CompactRef<'a, T>

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fn clone(&self) -> CompactRef<'a, T>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'a> Encode for CompactRef<'a, ()>

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fn encode_to<W: Output + ?Sized>(&self, _dest: &mut W)

Convert self to a slice and append it to the destination.
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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.
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fn encode(&self) -> Vec<u8>

Convert self to an owned vector.
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fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding. Read more
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fn encoded_size(&self) -> usize

Calculates the encoded size. Read more
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impl<'a, T> Encode for CompactRef<'a, T>
where T: CompactAs, for<'b> CompactRef<'b, T::As>: Encode,

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fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding. Read more
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fn encode_to<Out: Output + ?Sized>(&self, dest: &mut Out)

Convert self to a slice and append it to the destination.
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fn encode(&self) -> Vec<u8>

Convert self to an owned vector.
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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.
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fn encoded_size(&self) -> usize

Calculates the encoded size. Read more
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impl<'a> Encode for CompactRef<'a, u128>

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fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding. Read more
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fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)

Convert self to a slice and append it to the destination.
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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.
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fn encode(&self) -> Vec<u8>

Convert self to an owned vector.
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fn encoded_size(&self) -> usize

Calculates the encoded size. Read more
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impl<'a> Encode for CompactRef<'a, u16>

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fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding. Read more
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fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)

Convert self to a slice and append it to the destination.
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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.
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fn encode(&self) -> Vec<u8>

Convert self to an owned vector.
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fn encoded_size(&self) -> usize

Calculates the encoded size. Read more
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impl<'a> Encode for CompactRef<'a, u32>

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fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding. Read more
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fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)

Convert self to a slice and append it to the destination.
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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.
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fn encode(&self) -> Vec<u8>

Convert self to an owned vector.
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fn encoded_size(&self) -> usize

Calculates the encoded size. Read more
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impl<'a> Encode for CompactRef<'a, u64>

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fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding. Read more
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fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)

Convert self to a slice and append it to the destination.
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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.
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fn encode(&self) -> Vec<u8>

Convert self to an owned vector.
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fn encoded_size(&self) -> usize

Calculates the encoded size. Read more
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impl<'a> Encode for CompactRef<'a, u8>

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fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding. Read more
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fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)

Convert self to a slice and append it to the destination.
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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.
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fn encode(&self) -> Vec<u8>

Convert self to an owned vector.
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fn encoded_size(&self) -> usize

Calculates the encoded size. Read more
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impl<'a, T> From<&'a T> for CompactRef<'a, T>

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

Converts to this type from the input type.
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impl<'a, T: PartialEq> PartialEq for CompactRef<'a, T>

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fn eq(&self, other: &CompactRef<'a, T>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'a, T: Copy> Copy for CompactRef<'a, T>

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impl<'a, T> EncodeLike for CompactRef<'a, T>
where T: CompactAs, for<'b> CompactRef<'b, T::As>: Encode,

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impl<'a, T: Eq> Eq for CompactRef<'a, T>

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impl<'a, T> StructuralPartialEq for CompactRef<'a, T>

Auto Trait Implementations§

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impl<'a, T> Freeze for CompactRef<'a, T>

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impl<'a, T> RefUnwindSafe for CompactRef<'a, T>
where T: RefUnwindSafe,

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impl<'a, T> Send for CompactRef<'a, T>
where T: Sync,

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impl<'a, T> Sync for CompactRef<'a, T>
where T: Sync,

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impl<'a, T> Unpin for CompactRef<'a, T>

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impl<'a, T> UnwindSafe for CompactRef<'a, T>
where T: RefUnwindSafe,

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> EncodeLike<&&T> for T
where T: Encode,

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impl<T> EncodeLike<&T> for T
where T: Encode,

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impl<T> EncodeLike<&mut T> for T
where T: Encode,

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impl<T> EncodeLike<Arc<T>> for T
where T: Encode,

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impl<T> EncodeLike<Box<T>> for T
where T: Encode,

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impl<'a, T> EncodeLike<Cow<'a, T>> for T
where T: ToOwned + Encode,

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impl<T> EncodeLike<Rc<T>> for T
where T: Encode,

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impl<S> FullEncode for S
where S: Encode + EncodeLike,