fuel_merkle::sparse

Struct MerkleTreeKey

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pub struct MerkleTreeKey(/* private fields */);
Expand description

The safe Merkle tree storage key prevents Merkle tree structure manipulations. The type contains only one constructor that hashes the storage key.

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impl MerkleTreeKey

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pub fn new<B>(storage_key: B) -> Self
where B: AsRef<[u8]>,

The safe way to create a Self. It hashes the storage_key, making it entirely random and preventing SMT structure manipulation.

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pub unsafe fn convert<B>(storage_key: B) -> Self
where B: Into<Bytes32>,

Unsafe analog to create a Self that doesn’t hash the storage_key unlike Self::new.

§Safety

It is safe to use this method if you know that storage_key was randomly generated like ContractId or AssetId.

Trait Implementations§

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impl AsRef<[u8]> for MerkleTreeKey

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fn as_ref(&self) -> &[u8]

Converts this type into a shared reference of the (usually inferred) input type.
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impl AsRef<[u8; 32]> for MerkleTreeKey

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fn as_ref(&self) -> &Bytes32

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for MerkleTreeKey

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fn clone(&self) -> MerkleTreeKey

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 Debug for MerkleTreeKey

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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 Deref for MerkleTreeKey

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type Target = [u8; 32]

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl From<MerkleTreeKey> for Bytes32

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fn from(value: MerkleTreeKey) -> Self

Converts to this type from the input type.
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impl Hash for MerkleTreeKey

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for MerkleTreeKey

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fn eq(&self, other: &MerkleTreeKey) -> 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 Copy for MerkleTreeKey

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impl Eq for MerkleTreeKey

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impl StructuralPartialEq for MerkleTreeKey

Auto Trait Implementations§

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 T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. 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> Same for T

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type Output = T

Should always be Self
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impl<T> StorageAsMut for T

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fn storage<Type>(&mut self) -> StorageMut<'_, Self, Type>
where Type: Mappable,

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fn storage_as_mut<Type>(&mut self) -> StorageMut<'_, Self, Type>
where Type: Mappable,

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impl<T> StorageAsRef for T

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fn storage<Type>(&self) -> StorageRef<'_, Self, Type>
where Type: Mappable,

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fn storage_as_ref<Type>(&self) -> StorageRef<'_, Self, Type>
where Type: Mappable,

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impl<T> ToHex for T
where T: AsRef<[u8]>,

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fn encode_hex<U>(&self) -> U
where U: FromIterator<char>,

Encode the hex strict representing self into the result. Lower case letters are used (e.g. f9b4ca)
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fn encode_hex_upper<U>(&self) -> U
where U: FromIterator<char>,

Encode the hex strict representing self into the result. Upper case letters are used (e.g. F9B4CA)
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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.