Enum hdk::prelude::ElementEntry

source · [−]

pub enum ElementEntry {
    Present(Entry),
    Hidden,
    NotApplicable,
    NotStored,
}

Expand description

Represents the different ways the entry_address reference within a Header can be intepreted

Variants

`Present(Entry)`

The Header has an entry_address reference, and the Entry is accessible.

`Hidden`

The Header has an entry_address reference, but we are in a public context and the entry is private.

`NotApplicable`

The Header does not contain an entry_address reference.

`NotStored`

The Header has an entry but was stored without it. This can happen when you receive gossip of just a header when the header type is a [NewEntryHeader]

Implementations

impl ElementEntry

pub fn as_option(&self) -> Option<&Entry>

Provides entry data by reference if it exists

Collapses the enum down to the two possibilities of extant or nonextant Entry data

pub fn into_option(self) -> Option<Entry>

Provides entry data as owned value if it exists.

Collapses the enum down to the two possibilities of extant or nonextant Entry data

pub fn to_app_option<A>(&self) -> Result<Option<A>, SerializedBytesError> where
A: TryFrom<SerializedBytes, Error = SerializedBytesError>,

Provides deserialized app entry if it exists

same as as_option but handles deserialization anything other than ElementEntry::Present returns None a present entry that fails to deserialize cleanly is an error a present entry that deserializes cleanly is returned as the provided type A

pub fn to_grant_option(&self) -> Option<ZomeCallCapGrant>

Provides CapGrantEntry if it exists

same as as_option but handles cap grants anything other than ElementEntry::Present for a Entry::CapGrant returns None

Trait Implementations

impl Clone for ElementEntry

fn clone(&self) -> ElementEntry

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 ElementEntry

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

Formats the value using the given formatter. Read more

impl<'de> Deserialize<'de> for ElementEntry

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

Deserialize this value from the given Serde deserializer. Read more

impl PartialEq<ElementEntry> for ElementEntry

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

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

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

This method tests for !=.

impl Serialize for ElementEntry

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<&'_ ElementEntry> for SerializedBytes

type Error = SerializedBytesError

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<ElementEntry> for SerializedBytes

type Error = SerializedBytesError

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<SerializedBytes> for ElementEntry

type Error = SerializedBytesError

The type returned in the event of a conversion error.

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

Performs the conversion.

impl Eq for ElementEntry

impl StructuralEq for ElementEntry

impl StructuralPartialEq for ElementEntry

Auto Trait Implementations

impl RefUnwindSafe for ElementEntry

impl Send for ElementEntry

impl Sync for ElementEntry

impl Unpin for ElementEntry

impl UnwindSafe for ElementEntry

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<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

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

Compare self to key and return true if they are equal.

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>`impl<T> Future for Instrumented<T> where T: Future, type Output = <T as Future>::Output;`

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

fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>`impl<T> Future for Instrumented<T> where T: Future, type Output = <T as Future>::Output;`

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> 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<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>`impl<T> Future for WithDispatch<T> where T: Future, type Output = <T as Future>::Output;` where
S: Into<Dispatch>,

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

fn with_current_subscriber(self) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>`impl<T> Future for WithDispatch<T> where T: Future, type Output = <T as Future>::Output;`

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>,