zng_ext_image

Struct ImageHash

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

A 256-bit hash for image entries.

This hash is used to identify image files in the IMAGES cache.

Use ImageHasher to compute.

Implementations§

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impl ImageHash

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pub fn compute(data: &[u8]) -> Self

Compute the hash for data.

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pub fn hasher() -> ImageHasher

Start a new ImageHasher.

Trait Implementations§

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impl Clone for ImageHash

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fn clone(&self) -> ImageHash

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 ImageHash

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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 Display for ImageHash

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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 Hash for ImageHash

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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 ImageHash

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fn eq(&self, other: &Self) -> 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 ImageHash

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impl Eq for ImageHash

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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> AnyVarValue for T
where T: VarValue,

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

Access to dyn Any methods.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Access to mut dyn Any methods.
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fn clone_boxed(&self) -> Box<dyn AnyVarValue>

Clone the value.
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fn clone_boxed_var(&self) -> Box<dyn AnyVar>

Clone the value into a new boxed LocalVar<Self>.
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fn into_any(self: Box<T>) -> Box<dyn Any>

Access to Box<dyn Any> methods.
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fn eq_any(&self, other: &(dyn AnyVarValue + 'static)) -> bool

Gets if self equals other.
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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
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fn borrow_mut(&mut self) -> &mut T

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

Compare self to key and return true if they are equal.
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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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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn instrument(self, span: Span) -> Instrumented<Self>

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fn in_current_span(self) -> Instrumented<Self>

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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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type Var = LocalVar<T>

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fn into_var(self) -> <T as IntoVar<T>>::Var

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const ALIGN: usize = _

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type Init = T

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

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type Owned = T

The resulting type after obtaining ownership.
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Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

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default fn to_string(&self) -> String

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