MKMap

mithril_common::crypto_helper

Struct MKMap 

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pub struct MKMap<K: MKMapKey, V: MKMapValue<K>, S: MKTreeStorer> { /* private fields */ }
Expand description

A map, where the keys and values are merkelized and provable

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impl<K: MKMapKey, V: MKMapValue<K>, S: MKTreeStorer> MKMap<K, V, S>

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pub fn new(entries: &[(K, V)]) -> StdResult<Self>

MKMap factory

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pub fn new_from_iter<T: IntoIterator<Item = (K, V)>>( entries: T, ) -> StdResult<Self>

MKMap factory

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pub fn insert(&mut self, key: K, value: V) -> StdResult<()>

Insert a new key-value pair Important: keys must be inserted in order to guarantee that the same set of key/values results in the same computation for the root.

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pub fn replace(&mut self, key: K, value: V) -> StdResult<()>

Replace the value of an existing key

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pub fn contains(&self, leaf: &MKTreeNode) -> Option<(&K, &V)>

Check if the merkelized map contains a leaf (and returns the corresponding key and value if exists)

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pub fn get(&self, key: &K) -> Option<&V>

Get the value of the merkelized map for a given key

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pub fn iter(&self) -> impl Iterator<Item = (&K, &V)>

Get an iterator for the key and values of the merkelized map

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pub fn len(&self) -> usize

Get the length of the merkelized map

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pub fn is_empty(&self) -> bool

Check if the merkelized map is empty

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pub fn compress(&mut self) -> StdResult<()>

Compress the merkelized map

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pub fn compute_root(&self) -> StdResult<MKTreeNode>

Get the root of the merkle tree of the merkelized map

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pub fn compute_proof<T: Into<MKTreeNode> + Clone>( &self, leaves: &[T], ) -> StdResult<MKMapProof<K>>

Get the proof for a set of values of the merkelized map (recursively if needed)

Trait Implementations§

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impl<K: MKMapKey, V: MKMapValue<K>, S: MKTreeStorer> Clone for MKMap<K, V, S>

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fn clone(&self) -> Self

Returns a duplicate 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, K: MKMapKey, V: MKMapValue<K>, S: MKTreeStorer> From<&'a MKMap<K, V, S>> for &'a MKTree<S>

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fn from(other: &'a MKMap<K, V, S>) -> Self

Converts to this type from the input type.
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impl<K: MKMapKey, S: MKTreeStorer> From<MKMap<K, MKMapNode<K, S>, S>> for MKMapNode<K, S>

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fn from(other: MKMap<K, MKMapNode<K, S>, S>) -> Self

Converts to this type from the input type.
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impl<K: MKMapKey, V: MKMapValue<K>, S: MKTreeStorer> TryFrom<MKMap<K, V, S>> for MKTreeNode

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(other: MKMap<K, V, S>) -> Result<Self, Self::Error>

Performs the conversion.

Auto Trait Implementations§

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impl<K, V, S> Freeze for MKMap<K, V, S>

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impl<K, V, S> RefUnwindSafe for MKMap<K, V, S>
where K: RefUnwindSafe, V: RefUnwindSafe, S: RefUnwindSafe,

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impl<K, V, S> Send for MKMap<K, V, S>
where K: Send, V: Send,

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impl<K, V, S> Sync for MKMap<K, V, S>
where K: Sync, V: Sync,

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impl<K, V, S> Unpin for MKMap<K, V, S>

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impl<K, V, S> UnwindSafe for MKMap<K, V, S>
where K: RefUnwindSafe, V: RefUnwindSafe, S: UnwindSafe,

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> Az for T

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fn az<Dst>(self) -> Dst
where T: Cast<Dst>,

Casts the value.
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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<Src, Dst> CastFrom<Src> for Dst
where Src: Cast<Dst>,

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fn cast_from(src: Src) -> Dst

Casts the value.
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impl<T> CheckedAs for T

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fn checked_as<Dst>(self) -> Option<Dst>
where T: CheckedCast<Dst>,

Casts the value.
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impl<Src, Dst> CheckedCastFrom<Src> for Dst
where Src: CheckedCast<Dst>,

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fn checked_cast_from(src: Src) -> Option<Dst>

Casts the value.
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impl<T> CloneToUninit for T
where T: Clone,

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

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

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fn conv<T>(self) -> T
where Self: Into<T>,

Converts self into T using Into<T>. Read more
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impl<T> FmtForward for T

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fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
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fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.
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fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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where &'a Self: for<'a> IntoIterator,

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Returns the argument unchanged.

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Calls U::from(self).

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Performs the conversion.
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where Dst: LossyFrom<Src>,

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Performs the conversion.
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where T: OverflowingCast<Dst>,

Casts the value.
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Casts the value.
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fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
where Self: Sized,

Pipes by value. This is generally the method you want to use. Read more
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where R: 'a,

Borrows self and passes that borrow into the pipe function. Read more
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where Self: Borrow<B>, B: 'a + ?Sized, R: 'a,

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where Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

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where Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

Borrows self, then passes self.deref() into the pipe function.
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where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

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const ALIGN: usize

The alignment of pointer.
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type Output = T

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where T: SaturatingCast<Dst>,

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Casts the value.
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fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more
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fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

Mutable access to a value. Read more
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where Self: Borrow<B>, B: ?Sized,

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fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
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where Self: AsMut<R>, R: ?Sized,

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where Self: Deref<Target = T>, T: ?Sized,

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