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Hasher

fuels::crypto

Struct Hasher 

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

Standard hasher

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impl Hasher

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pub const OUTPUT_LEN: usize = Bytes32::LEN

Length of the output

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pub fn input<B>(&mut self, data: B)
where B: AsRef<[u8]>,

Append data to the hasher

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pub fn chain<B>(self, data: B) -> Hasher
where B: AsRef<[u8]>,

Consume, append data and return the hasher

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pub fn extend_chain<B, I>(self, iter: I) -> Hasher
where B: AsRef<[u8]>, I: IntoIterator<Item = B>,

Consume, append the items of the iterator and return the hasher

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pub fn reset(&mut self)

Reset the hasher to the default state

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pub fn hash<B>(data: B) -> Bytes32
where B: AsRef<[u8]>,

Hash the provided data, returning its digest

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pub fn finalize(self) -> Bytes32

Consume the hasher, returning the digest

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pub fn digest(&self) -> Bytes32

Return the digest without consuming the hasher

Trait Implementations§

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impl Clone for Hasher

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fn clone(&self) -> Hasher

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 Debug for Hasher

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

Formats the value using the given formatter. Read more
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impl Default for Hasher

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fn default() -> Hasher

Returns the “default value” for a type. Read more
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impl<B> Extend<B> for Hasher
where B: AsRef<[u8]>,

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fn extend<T>(&mut self, iter: T)
where T: IntoIterator<Item = B>,

Extends a collection with the contents of an iterator. Read more
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fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)
Extends a collection with exactly one element.
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fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)
Reserves capacity in a collection for the given number of additional elements. Read more
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impl From<&Hasher> for Message

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fn from(hasher: &Hasher) -> Message

Converts to this type from the input type.
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impl From<Hasher> for Message

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fn from(hasher: Hasher) -> Message

Converts to this type from the input type.
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impl<B> FromIterator<B> for Hasher
where B: AsRef<[u8]>,

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fn from_iter<T>(iter: T) -> Hasher
where T: IntoIterator<Item = B>,

Creates a value from an iterator. Read more

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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> AnyDebug for T
where T: Any + Debug,

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

Returns a reference to the underlying type as Any.
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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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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, 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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fn fmt_display(self) -> FmtDisplay<Self>
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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fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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fn fmt_pointer(self) -> FmtPointer<Self>
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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fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

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

Formats each item in a sequence. 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> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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where U: From<T>,

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Calls U::from(self).

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

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<S> IteratorOverTable for S

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fn iter_all_keys<M>( &self, direction: Option<IterDirection>, ) -> BoxedIter<'_, Result<<M as Mappable>::OwnedKey, Error>>
where M: Mappable, Self: IterableTable<M>,

Returns an iterator over the all keys in the table.
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where M: Mappable, P: AsRef<[u8]>, Self: IterableTable<M>,

Returns an iterator over the all keys in the table with the specified prefix.
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where M: Mappable, Self: IterableTable<M>,

Returns an iterator over the all keys in the table after a specific start key.
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fn iter_all_filtered_keys<M, P>( &self, prefix: Option<P>, start: Option<&<M as Mappable>::Key>, direction: Option<IterDirection>, ) -> BoxedIter<'_, Result<<M as Mappable>::OwnedKey, Error>>
where M: Mappable, P: AsRef<[u8]>, Self: IterableTable<M>,

Returns an iterator over the all keys in the table with a prefix after a specific start key.
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fn iter_all<M>( &self, direction: Option<IterDirection>, ) -> BoxedIter<'_, Result<(<M as Mappable>::OwnedKey, <M as Mappable>::OwnedValue), Error>>
where M: Mappable, Self: IterableTable<M>,

Returns an iterator over the all entries in the table.
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fn iter_all_by_prefix<M, P>( &self, prefix: Option<P>, ) -> BoxedIter<'_, Result<(<M as Mappable>::OwnedKey, <M as Mappable>::OwnedValue), Error>>
where M: Mappable, P: AsRef<[u8]>, Self: IterableTable<M>,

Returns an iterator over the all entries in the table with the specified prefix.
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fn iter_all_by_start<M>( &self, start: Option<&<M as Mappable>::Key>, direction: Option<IterDirection>, ) -> BoxedIter<'_, Result<(<M as Mappable>::OwnedKey, <M as Mappable>::OwnedValue), Error>>
where M: Mappable, Self: IterableTable<M>,

Returns an iterator over the all entries in the table after a specific start key.
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fn iter_all_filtered<M, P>( &self, prefix: Option<P>, start: Option<&<M as Mappable>::Key>, direction: Option<IterDirection>, ) -> BoxedIter<'_, Result<(<M as Mappable>::OwnedKey, <M as Mappable>::OwnedValue), Error>>
where M: Mappable, P: AsRef<[u8]>, Self: IterableTable<M>,

Returns an iterator over the all entries in the table with a prefix after a specific start key.
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where T: ?Sized,

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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,

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where R: 'a,

Mutably 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,

Borrows self, then passes self.borrow() into the pipe function. Read more
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where Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

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

Borrows self, then passes self.as_ref() into the pipe function.
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where Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.as_mut() into the pipe function.
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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,

Mutably borrows self, then passes self.deref_mut() into the pipe function.
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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more
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Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more
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impl<T> Same for T

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type Output = T

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

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fn tap(self, func: impl FnOnce(&Self)) -> Self

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

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

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

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Calls .tap() only in debug builds, and is erased in release builds.
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where Self: Borrow<B>, B: ?Sized,

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Calls .tap_deref() only in debug builds, and is erased in release builds.
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where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
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type Owned = T

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

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where Self: TryInto<T>,

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Performs the conversion.
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fn vzip(self) -> V

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where S: Into<Dispatch>,

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fn write_transaction( &mut self, ) -> StructuredStorage<InMemoryTransaction<&mut S>>

Returns the write transaction that can commit the changes.
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