[][src]Struct srml_indices::NextEnumSet

pub struct NextEnumSet<T: Trait>(_);

The next free enumeration set.

Trait Implementations

impl<T: Trait> StorageValue<<T as Trait>::AccountIndex> for NextEnumSet<T>[src]

type Query = T::AccountIndex

The type that get/take returns.

fn key() -> &'static [u8][src]

Get the storage key.

fn get<S: HashedStorage<Twox128>>(storage: &S) -> Self::Query[src]

Load the value from the provided storage instance.

fn take<S: HashedStorage<Twox128>>(storage: &mut S) -> Self::Query[src]

Take a value from storage, removing it afterwards.

fn mutate<R, F, S>(f: F, storage: &mut S) -> R where
    F: FnOnce(&mut Self::Query) -> R,
    S: HashedStorage<Twox128>, 
[src]

Mutate the value under a key.

fn exists<S>(storage: &S) -> bool where
    S: HashedStorage<Twox128>, 
[src]

true if the value is defined in storage.

fn put<S>(val: &T, storage: &mut S) where
    S: HashedStorage<Twox128>, 
[src]

Store a value under this key into the provided storage instance.

fn put_ref<Arg, S>(val: &Arg, storage: &mut S) where
    Arg: Encode + ?Sized,
    S: HashedStorage<Twox128>,
    T: AsRef<Arg>, 
[src]

Store a value under this key into the provided storage instance; this can take any reference type that derefs to T (and has Encode implemented). Store a value under this key into the provided storage instance. Read more

fn kill<S>(storage: &mut S) where
    S: HashedStorage<Twox128>, 
[src]

Clear the storage value.

fn append<S, I>(items: &[I], storage: &mut S) -> Result<(), &'static str> where
    I: Encode,
    S: HashedStorage<Twox128>,
    T: EncodeAppend<Item = I>, 
[src]

Append the given items to the value in the storage. Read more

Auto Trait Implementations

impl<T> Unpin for NextEnumSet<T> where
    T: Unpin

impl<T> Sync for NextEnumSet<T> where
    T: Sync

impl<T> Send for NextEnumSet<T> where
    T: Send

impl<T> RefUnwindSafe for NextEnumSet<T> where
    T: RefUnwindSafe

impl<T> UnwindSafe for NextEnumSet<T> where
    T: UnwindSafe

Blanket Implementations

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

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

The type returned in the event of a conversion error.

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<S, T> UncheckedInto<T> for S where
    T: UncheckedFrom<S>, 
[src]

impl<T, U> StorageValue<T> for U where
    T: Codec,
    U: StorageValue<T>, 
[src]

type Query = <U as StorageValue<T>>::Query

The type that get/take return.

impl<T> Erased for T[src]

impl<T, S> UniqueSaturatedInto<T> for S where
    S: TryInto<T>,
    T: Bounded
[src]

impl<T> SaturatedConversion for T[src]

fn saturated_from<T>(t: T) -> Self where
    Self: UniqueSaturatedFrom<T>, 
[src]

Convert from a value of T into an equivalent instance of Self. Read more

fn saturated_into<T>(self) -> T where
    Self: UniqueSaturatedInto<T>, 
[src]

Consume self to return an equivalent value of T. Read more

impl<T> CheckedConversion for T[src]

fn checked_from<T>(t: T) -> Option<Self> where
    Self: TryFrom<T>, 
[src]

Convert from a value of T into an equivalent instance of Option<Self>. Read more

fn checked_into<T>(self) -> Option<T> where
    Self: TryInto<T>, 
[src]

Consume self to return Some equivalent value of Option<T>. Read more

impl<T> Same<T> for T[src]

type Output = T

Should always be Self