Struct BiDiMapper

pub struct BiDiMapper<SA, K, V, A = CurrentStorage>
where
    SA: StorageMapperApi,
    A: StorageAddress<SA>,
    K: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq,
    V: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq,
{ /* private fields */ }

A bi-directional map, from values to ids and viceversa. The mapper is based on UnorderedSetMapper, reason why the remove is done by swap_remove

Implementations

impl<SA, K, V, A> BiDiMapper<SA, K, V, A>

where SA: StorageMapperApi, A: StorageAddress<SA>, K: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq, V: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq,

pub fn get_id(&self, value: &V) -> K

pub fn get_value(&self, id: &K) -> V

pub fn contains_id(&self, id: &K) -> bool

pub fn contains_value(&self, value: &V) -> bool

pub fn get_all_values(&self) -> Iter<'_, SA, V, A>

pub fn get_all_ids(&self) -> Iter<'_, SA, K, A>

pub fn iter(&self) -> Iter<'_, SA, K, V, A>

pub fn is_empty(&self) -> bool

pub fn len(&self) -> usize

impl<SA, K, V> BiDiMapper<SA, K, V>

where SA: StorageMapperApi, K: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq, V: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq,

pub fn insert(&mut self, id: K, value: V) -> bool

pub fn remove_by_id(&mut self, id: &K) -> bool

pub fn remove_by_value(&mut self, value: &V) -> bool

pub fn remove_all_by_ids<I>(&mut self, iter: I)

where I: IntoIterator<Item = K>,

pub fn remove_all_by_values<I>(&mut self, iter: I)

where I: IntoIterator<Item = V>,

Trait Implementations

impl<'a, SA, K, V, A> IntoIterator for &'a BiDiMapper<SA, K, V, A>

where SA: StorageMapperApi, A: StorageAddress<SA>, K: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq, V: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq,

type Item = (K, V)

The type of the elements being iterated over.

type IntoIter = Iter<'a, SA, K, V, A>

Which kind of iterator are we turning this into?

fn into_iter(self) -> <&'a BiDiMapper<SA, K, V, A> as IntoIterator>::IntoIter

Creates an iterator from a value.

impl<SA, K, V> StorageMapper<SA> for BiDiMapper<SA, K, V>

where SA: StorageMapperApi, K: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq, V: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq,

fn new(base_key: StorageKey<SA>) -> BiDiMapper<SA, K, V>

Will be called automatically by the #[storage_mapper] annotation generated code.

impl<SA, K, V> StorageMapperFromAddress<SA> for BiDiMapper<SA, K, V, ManagedAddress<SA>>

where SA: StorageMapperApi, K: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq, V: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq,

fn new_from_address( address: ManagedAddress<SA>, base_key: StorageKey<SA>, ) -> BiDiMapper<SA, K, V, ManagedAddress<SA>>

Will be called automatically by the #[storage_mapper_from_address] annotation generated code.

impl<SA, K, V> TopEncodeMulti for BiDiMapper<SA, K, V>

where SA: StorageMapperApi, K: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq, V: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq,

fn multi_encode_or_handle_err<O, H>( &self, output: &mut O, h: H, ) -> Result<(), <H as EncodeErrorHandler>::HandledErr>

where O: TopEncodeMultiOutput, H: EncodeErrorHandler,

Version of top_encode that can handle errors as soon as they occur. For instance in can exit immediately and make sure that if it returns, it is a success. By not deferring error handling, this can lead to somewhat smaller bytecode.

fn multi_encode<O>(&self, output: &mut O) -> Result<(), EncodeError>

where O: TopEncodeMultiOutput,

Attempt to serialize the value to ouput.

impl<SA, K, V> TypeAbi for BiDiMapper<SA, K, V>

where SA: StorageMapperApi, K: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq + TypeAbi, V: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq + TypeAbi,

type Unmanaged = BiDiMapper<SA, K, V>

fn type_name() -> String

fn type_name_rust() -> String

fn provide_type_descriptions<TDC>(accumulator: &mut TDC)

where TDC: TypeDescriptionContainer,

A type can provide more than its own name. For instance, a struct can also provide the descriptions of the type of its fields. TypeAbi doesn’t care for the exact accumulator type, which is abstracted by the TypeDescriptionContainer trait.

fn type_names() -> TypeNames

impl<SA, K, V> TypeAbiFrom<BiDiMapper<SA, K, V>> for BiDiMapper<SA, K, V>

where SA: StorageMapperApi, K: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq, V: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq,

impl<SA, K, V> TypeAbiFrom<BiDiMapper<SA, K, V>> for MultiValueEncoded<SA, MultiValue2<K, V>>

where SA: StorageMapperApi, K: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq, V: TopEncode + TopDecode + NestedEncode + NestedDecode + 'static + Default + PartialEq,