Struct pallet_mmr_primitives::OpaqueLeaf[−][src]

pub struct OpaqueLeaf(pub Vec<u8>);

Expand description

A helper type to allow using arbitrary SCALE-encoded leaf data in the RuntimeApi.

The point is to be able to verify MMR proofs from external MMRs, where we don’t know the exact leaf type, but it’s enough for us to have it SCALE-encoded.

Note the leaf type should be encoded in its compact form when passed through this type. See FullLeaf documentation for details.

This type does not implement SCALE encoding/decoding on purpose to avoid confusion, it would have to be SCALE-compatible with the concrete leaf type, but due to SCALE limitations it’s not possible to know how many bytes the encoding of concrete leaf type uses.

Implementations

impl OpaqueLeaf

pub fn from_leaf<T: FullLeaf>(leaf: &T) -> Self

Convert a concrete MMR leaf into an opaque type.

pub fn from_encoded_leaf(encoded_leaf: Vec<u8>) -> Self

Create a OpaqueLeaf given raw bytes of compact-encoded leaf.

pub fn try_decode<T: Decode>(&self) -> Option<T>

Attempt to decode the leaf into expected concrete type.

Trait Implementations

impl Clone for OpaqueLeaf

fn clone(&self) -> OpaqueLeaf

Returns a copy of the value. Read more

1.0.0[src]

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

Performs copy-assignment from source. Read more

impl Debug for OpaqueLeaf

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

Formats the value using the given formatter. Read more

impl<'de> Deserialize<'de> for OpaqueLeaf

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

Deserialize this value from the given Serde deserializer. Read more

impl FullLeaf for OpaqueLeaf

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

Encode the leaf either in it’s full or compact form. Read more

impl PartialEq<OpaqueLeaf> for OpaqueLeaf

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

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

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

This method tests for !=.

impl Serialize for OpaqueLeaf

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 StructuralPartialEq for OpaqueLeaf

Auto Trait Implementations

impl RefUnwindSafe for OpaqueLeaf

impl Send for OpaqueLeaf

impl Sync for OpaqueLeaf

impl Unpin for OpaqueLeaf

impl UnwindSafe for OpaqueLeaf

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,

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> CheckedConversion for T

fn checked_from<T>(t: T) -> Option<Self> where
    Self: TryFrom<T>,

Convert from a value of T into an equivalent instance of Option<Self>. Read more

fn checked_into<T>(self) -> Option<T> where
    Self: TryInto<T>,

Consume self to return Some equivalent value of Option<T>. Read more

impl<T> Downcast for T where
    T: Any,

pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

pub fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

impl<T> DowncastSync for T where
    T: Any + Send + Sync,

pub fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send + 'static>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more

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

pub fn __clone_box(&self, Private) -> *mut ()

impl<T> From<T> for T

pub fn from(t: T) -> T

Performs the conversion.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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

pub fn into(self) -> U

Performs the conversion.

impl<T> IsType<T> for T

pub fn from_ref(t: &T) -> &T

Cast reference.

pub fn into_ref(&self) -> &T

Cast reference.

pub fn from_mut(t: &mut T) -> &mut T

Cast mutable reference.

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

Cast mutable reference.

impl<T, Outer> IsWrappedBy<Outer> for T where
    T: From<Outer>,
    Outer: AsRef<T> + AsMut<T> + From<T>,

pub fn from_ref(outer: &Outer) -> &T

Get a reference to the inner from the outer.

pub fn from_mut(outer: &mut Outer) -> &mut T

Get a mutable reference to the inner from the outer.

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> SaturatedConversion for T

fn saturated_from<T>(t: T) -> Self where
    Self: UniqueSaturatedFrom<T>,

Convert from a value of T into an equivalent instance of Self. Read more

fn saturated_into<T>(self) -> T where
    Self: UniqueSaturatedInto<T>,

Consume self to return an equivalent value of T. Read more

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)

recently added

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.

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.

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

Performs the conversion.

impl<S, T> UncheckedInto<T> for S where
    T: UncheckedFrom<S>,

pub fn unchecked_into(self) -> T

The counterpart to unchecked_from.

impl<T, S> UniqueSaturatedInto<T> for S where
    T: Bounded,
    S: TryInto<T>,

pub fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>,

pub fn vzip(self) -> V

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

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

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

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

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

impl<T> MaybeSerializeDeserialize for T where
    T: DeserializeOwned + Serialize,