Struct spl_concurrent_merkle_tree::changelog::ChangeLog

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#[repr(C)]
pub struct ChangeLog<const MAX_DEPTH: usize> {
    pub root: Node,
    pub path: [Node; MAX_DEPTH],
    pub index: u32,
    pub _padding: u32,
}

Expand description

Stores the path of nodes changed in a tree by a Merkle tree operation

Fields

root: Node

Historical root value before Path was applied

path: [Node; MAX_DEPTH]

Nodes of off-chain merkle tree

index: u32

Bitmap of node parity (used when hashing)

_padding: u32

Implementations

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pub fn get_leaf(&self) -> Node

Returns the leaf value modified when the change log was recorded

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pub fn replace_and_recompute_path(
    &mut self,
    index: u32,
    node: Node,
    proof: &[Node]
) -> Node

Sets all change log values from a leaf and valid proof

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pub fn update_proof_or_leaf(
    &self,
    leaf_index: u32,
    proof: &mut [Node; MAX_DEPTH],
    leaf: &mut Node
)

Fast forwards the given proof and corresponding leaf by applying an update from the current change log

Trait Implementations

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impl<const MAX_DEPTH: usize> Clone for ChangeLog<MAX_DEPTH>

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fn clone(&self) -> ChangeLog<MAX_DEPTH>

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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impl<const MAX_DEPTH: usize> Debug for ChangeLog<MAX_DEPTH>

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

Formats the value using the given formatter. Read more

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impl<const MAX_DEPTH: usize> PartialEq<ChangeLog<MAX_DEPTH>> for ChangeLog<MAX_DEPTH>

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fn eq(&self, other: &ChangeLog<MAX_DEPTH>) -> bool

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

1.0.0 · source

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

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impl<const MAX_DEPTH: usize> Copy for ChangeLog<MAX_DEPTH>

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impl<const MAX_DEPTH: usize> Eq for ChangeLog<MAX_DEPTH>

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impl<const MAX_DEPTH: usize> StructuralEq for ChangeLog<MAX_DEPTH>

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impl<const MAX_DEPTH: usize> StructuralPartialEq for ChangeLog<MAX_DEPTH>

Auto Trait Implementations

impl<const MAX_DEPTH: usize> RefUnwindSafe for ChangeLog<MAX_DEPTH>

impl<const MAX_DEPTH: usize> Send for ChangeLog<MAX_DEPTH>

impl<const MAX_DEPTH: usize> Sync for ChangeLog<MAX_DEPTH>

impl<const MAX_DEPTH: usize> Unpin for ChangeLog<MAX_DEPTH>

impl<const MAX_DEPTH: usize> UnwindSafe for ChangeLog<MAX_DEPTH>

Blanket Implementations

impl<T> AbiExample for T

default fn example() -> T

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impl<T> Any for Twhere
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 Twhere
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

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> Pointable for T

const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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impl<T> Same<T> for T

type Output = T

Should always be Self

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impl<T> ToOwned for Twhere
T: Clone,

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 for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct spl_concurrent_merkle_tree::changelog::ChangeLog

Fields

Implementations

impl<const MAX_DEPTH: usize> ChangeLog<MAX_DEPTH>

pub fn default() -> Self

pub fn new(root: Node, path: [Node; MAX_DEPTH], index: u32) -> Self

pub fn get_leaf(&self) -> Node

pub fn replace_and_recompute_path( &mut self, index: u32, node: Node, proof: &[Node]) -> Node

pub fn update_proof_or_leaf( &self, leaf_index: u32, proof: &mut [Node; MAX_DEPTH], leaf: &mut Node)

Trait Implementations

impl<const MAX_DEPTH: usize> Clone for ChangeLog<MAX_DEPTH>

fn clone(&self) -> ChangeLog<MAX_DEPTH>

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

impl<const MAX_DEPTH: usize> Debug for ChangeLog<MAX_DEPTH>

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

impl<const MAX_DEPTH: usize> PartialEq<ChangeLog<MAX_DEPTH>> for ChangeLog<MAX_DEPTH>

fn eq(&self, other: &ChangeLog<MAX_DEPTH>) -> bool

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

impl<const MAX_DEPTH: usize> Copy for ChangeLog<MAX_DEPTH>

impl<const MAX_DEPTH: usize> Eq for ChangeLog<MAX_DEPTH>

impl<const MAX_DEPTH: usize> StructuralEq for ChangeLog<MAX_DEPTH>

impl<const MAX_DEPTH: usize> StructuralPartialEq for ChangeLog<MAX_DEPTH>

Auto Trait Implementations

impl<const MAX_DEPTH: usize> RefUnwindSafe for ChangeLog<MAX_DEPTH>

impl<const MAX_DEPTH: usize> Send for ChangeLog<MAX_DEPTH>

impl<const MAX_DEPTH: usize> Sync for ChangeLog<MAX_DEPTH>

impl<const MAX_DEPTH: usize> Unpin for ChangeLog<MAX_DEPTH>

impl<const MAX_DEPTH: usize> UnwindSafe for ChangeLog<MAX_DEPTH>

Blanket Implementations

impl<T> AbiExample for T

default fn example() -> T

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::<T>()

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T> Same<T> for T

type Output = T

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

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

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

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

fn vzip(self) -> V

pub fn replace_and_recompute_path(
&mut self,
index: u32,
node: Node,
proof: &[Node]
) -> Node

pub fn update_proof_or_leaf(
&self,
leaf_index: u32,
proof: &mut [Node; MAX_DEPTH],
leaf: &mut Node
)

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

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

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

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

impl<T> ToOwned for Twhere
T: Clone,

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

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

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