Struct pallet_bags_list::Bag

pub struct Bag<T: Config<I>, I: 'static = ()> { /* private fields */ }

A Bag is a doubly-linked list of ids, where each id is mapped to a Node.

Note that we maintain both head and tail pointers. While it would be possible to get away with maintaining only a head pointer and cons-ing elements onto the front of the list, it’s more desirable to ensure that there is some element of first-come, first-serve to the list’s iteration so that there’s no incentive to churn ids positioning to improve the chances of appearing within the ids set.

Implementations

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

pub fn std_iter(&self) -> impl Iterator<Item = Node<T, I>>

Iterate over the nodes in this bag (public for tests).

Trait Implementations

impl<T: Clone + Config<I>, I: Clone + 'static> Clone for Bag<T, I>where T::AccountId: Clone, T::Score: Clone,

fn clone(&self) -> Bag<T, I>

Returns a copy of the value.

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

Performs copy-assignment from source.

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

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

Formats the value using the given formatter.

impl<T: Config<I>, I: 'static> Decode for Bag<T, I>where Option<T::AccountId>: Decode, T::Score: Default, PhantomData<I>: Default,

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> Default for Bag<T, I>

fn default() -> Self

Returns the “default value” for a type.

impl<T: Config<I>, I: 'static> Encode for Bag<T, I>where Option<T::AccountId>: Encode,

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

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

fn size_hint(&self) -> usize

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

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

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> Rwhere F: FnOnce(&[u8]) -> R,

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 Bag<T, I>

fn max_encoded_len() -> usize

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

impl<T: PartialEq + Config<I>, I: PartialEq + 'static> PartialEq<Bag<T, I>> for Bag<T, I>where T::AccountId: PartialEq, T::Score: PartialEq,

fn eq(&self, other: &Bag<T, I>) -> bool

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

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

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

impl<T, I> TypeInfo for Bag<T, I>where Option<T::AccountId>: TypeInfo + 'static, T::Score: TypeInfo + 'static, PhantomData<I>: TypeInfo + 'static, T: Config<I> + 'static, I: 'static,

type Identity = Bag<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> EncodeLike<Bag<T, I>> for Bag<T, I>where Option<T::AccountId>: Encode,

impl<T: Config<I>, I: 'static> StructuralPartialEq for Bag<T, I>