Struct holochain_types::prelude::element::Element

source · [−]

pub struct Element { /* private fields */ }

Expand description

a chain element containing the signed header along with the entry if the header type has one.

Implementations

impl Element

pub fn as_header_mut(&mut self) -> &mut Header

Mutable reference to the Header content. This is useless and dangerous in production usage. Guaranteed to make hashes and signatures mismatch whatever the Header is mutated to (at least). This may be useful for tests that rely heavily on mocked and fixturated data.

pub fn as_entry_mut(&mut self) -> &mut ElementEntry

Mutable reference to the ElementEntry. This is useless and dangerous in production usage. Guaranteed to make hashes and signatures mismatch whatever the ElementEntry is mutated to (at least). This may be useful for tests that rely heavily on mocked and fixturated data.

pub fn new(
signed_header: SignedHashed<Header>,
maybe_entry: Option<Entry>
) -> Element

Raw element constructor. Used only when we know that the values are valid.

pub fn privatized(self) -> Element

If the Element contains private entry data, set the ElementEntry to Hidden so that it cannot be leaked

pub fn into_inner(self) -> (SignedHashed<Header>, ElementEntry )

Break this element into its components

pub fn signed_header(&self) -> &SignedHashed<Header>

The inner signed-header

pub fn signature(&self) -> &Signature

Access the signature from this element’s signed header

pub fn header_address(&self) -> &HoloHash<Header>

Access the header address from this element’s signed header

Access the Header from this element’s signed header

pub fn header_hashed(&self) -> &HoloHashed<Header>

Access the HeaderHashed from this element’s signed header portion

pub fn entry(&self) -> &ElementEntry

Access the Entry portion of this element as an ElementEntry, which includes the context around the presence or absence of the entry.

Trait Implementations

impl<'arbitrary> Arbitrary<'arbitrary> for Element

fn arbitrary(u: &mut Unstructured<'arbitrary>) -> Result<Element, Error>

Generate an arbitrary value of Self from the given unstructured data. Read more

fn arbitrary_take_rest(u: Unstructured<'arbitrary>) -> Result<Element, Error>

Generate an arbitrary value of Self from the entirety of the given unstructured data. Read more

fn size_hint(depth: usize) -> (usize, Option<usize>)

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself. Read more

impl Clone for Element

fn clone(&self) -> Element

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

impl Debug for Element

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

Formats the value using the given formatter. Read more

impl<'de> Deserialize<'de> for Element

fn deserialize<D>(
deserializer: D
) -> Result<Element, <D as Deserializer<'de>>::Error> where
__D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

impl ElementExt for Element

fn validate<'life0, 'async_trait>(
    &'life0 self
) -> Pin<Box<dyn Future<Output = Result<(), KeystoreError>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    Self: 'async_trait,

Validates a chain element

impl From<Element> for Option<Entry>

fn from(e: Element) -> Option<Entry>

Converts to this type from the input type.

impl PartialEq<Element> for Element

fn eq(&self, other: &Element) -> bool

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

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

This method tests for !=.

impl Serialize for Element

fn serialize<S>(
    &self,
    serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
    S: Serializer,

Serialize this value into the given Serde serializer. Read more

impl<'_> TryFrom<&'_ Element> for SerializedBytes

type Error = SerializedBytesError

The type returned in the event of a conversion error.

fn try_from(t: &Element) -> Result<SerializedBytes, SerializedBytesError>

Performs the conversion.

impl TryFrom<Element> for CreateLink

type Error = WrongHeaderError

The type returned in the event of a conversion error.

fn try_from(
value: Element
) -> Result<CreateLink, <CreateLink as TryFrom<Element>>::Error>

Performs the conversion.

impl TryFrom<Element> for SerializedBytes

type Error = SerializedBytesError

The type returned in the event of a conversion error.

fn try_from(t: Element) -> Result<SerializedBytes, SerializedBytesError>

Performs the conversion.

impl TryFrom<Element> for DeleteLink

type Error = WrongHeaderError

The type returned in the event of a conversion error.

fn try_from(
value: Element
) -> Result<DeleteLink, <DeleteLink as TryFrom<Element>>::Error>

Performs the conversion.

impl TryFrom<SerializedBytes> for Element

type Error = SerializedBytesError

The type returned in the event of a conversion error.

fn try_from(sb: SerializedBytes) -> Result<Element, SerializedBytesError>

Performs the conversion.

impl StructuralPartialEq for Element

Auto Trait Implementations

impl RefUnwindSafe for Element

impl Send for Element

impl Sync for Element

impl Unpin for Element

impl UnwindSafe for Element

Blanket Implementations

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> FutureExt for T

fn with_context(self, otel_cx: Context) -> WithContext<Self>

Attaches the provided Context to this type, returning a WithContext wrapper. Read more

fn with_current_context(self) -> WithContext<Self>

Attaches the current Context to this type, returning a WithContext wrapper. Read more

impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T where
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

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

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T where
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<U>>::Error>

Performs the conversion.

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

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

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

impl<T> DeserializeOwned for T where
T: for<'de> Deserialize<'de>,