Struct Entries

pub struct Entries<T: Config<I>, I: 'static = ()>(WeakBoundedVec<EntryInfo<T, I>, T::MaxIndexEntries>);

Represents a collection of entries within an index.

Backed by a [WeakBoundedVec] to enforce an upper bound on the number of entries (via Config::MaxIndexEntries) while maintaining efficient, bounded storage.

This serves as the low-level container for all EntryInfo items that constitute an index.

Tuple Fields

0: WeakBoundedVec<EntryInfo<T, I>, T::MaxIndexEntries>

Implementations

impl<T: Config<I>, I: 'static> Entries<T, I>

pub fn new(entries: Vec<EntryInfo<T, I>>) -> Result<Self, DispatchError>

Creates a new Entries collection for an index from a vector of validated EntryInfo items.

Returns DispatchError if any inconsistencies detected.

pub fn entries(&self) -> Vec<EntryInfo<T, I>>

Returns all EntryInfo items contained in this list as a owned vector.

pub fn add_entry(&mut self, entry: EntryInfo<T, I>) -> Result<(), DispatchError>

Adds a new EntryInfo to the list of entries.

Returns DispatchError if vector bound exhausted or duplicate found.

pub fn remove_entry( &mut self, entry: &EntryDigest<T>, ) -> Result<(), DispatchError>

Removes an existing EntryInfo from the entries-list.

Returns DispatchError if entry of digest not found.

Trait Implementations

impl<T: Config<I>, I: 'static> Clone for Entries<T, I>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Config<I>, I: 'static> Debug for Entries<T, I>

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

Formats the value using the given formatter.

impl<T: Config<I>, I: 'static> Decode for Entries<T, I>

where WeakBoundedVec<EntryInfo<T, I>, T::MaxIndexEntries>: Decode,

fn decode<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy, ) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>

where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl<T: Config<I>, I: 'static> Encode for Entries<T, I>

where WeakBoundedVec<EntryInfo<T, I>, T::MaxIndexEntries>: Encode,

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<__CodecOutputReturn, __CodecUsingEncodedCallback: FnOnce(&[u8]) -> __CodecOutputReturn>( &self, f: __CodecUsingEncodedCallback, ) -> __CodecOutputReturn

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl<T: Config<I>, I: 'static> MaxEncodedLen for Entries<T, I>

where WeakBoundedVec<EntryInfo<T, I>, T::MaxIndexEntries>: MaxEncodedLen,

fn max_encoded_len() -> usize

Upper bound, in bytes, of the maximum encoded size of this item.

impl<T: Config<I>, I: 'static> PartialEq for Entries<T, I>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: Config<I>, I: 'static> TryFrom<Entries<T, I>> for Slots<T, I>

fn try_from(entries: Entries<T, I>) -> Result<Self, Self::Error>

Converts a collection of Entries into Slots.

Each EntryInfo is converted into a SlotInfo using the From<EntryInfo> implementation.

Returns

• Ok(Slots) if the conversion succeeds within the maximum allowed slots.
• Err(DispatchError) if the resulting collection exceeds MaxIndexEntries.

type Error = DispatchError

The type returned in the event of a conversion error.

impl<T, I> TypeInfo for Entries<T, I>

where WeakBoundedVec<EntryInfo<T, I>, T::MaxIndexEntries>: TypeInfo + 'static, T: Config<I> + 'static, I: 'static,

type Identity = Entries<T, I>

The type identifying for which type info is provided.

fn type_info() -> Type

Returns the static type identifier for Self.

impl<T: Config<I>, I: 'static> DecodeWithMemTracking for Entries<T, I>

where WeakBoundedVec<EntryInfo<T, I>, T::MaxIndexEntries>: DecodeWithMemTracking,

impl<T: Config<I>, I: 'static> EncodeLike for Entries<T, I>

where WeakBoundedVec<EntryInfo<T, I>, T::MaxIndexEntries>: Encode,

impl<T: Config<I>, I: 'static> Eq for Entries<T, I>