Struct frame_support::pallet_prelude::StorageValue

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pub struct StorageValue<Prefix, Value, QueryKind = OptionQuery, OnEmpty = GetDefault>(_);

Expand description

A type that allow to store a value.

Each value is stored at:

Twox128(Prefix::pallet_prefix()) ++ Twox128(Prefix::STORAGE_PREFIX)

Implementations

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impl<Prefix, Value, QueryKind, OnEmpty> StorageValue<Prefix, Value, QueryKind, OnEmpty> where
 Prefix: StorageInstance,
 Value: FullCodec,
 QueryKind: QueryKindTrait<Value, OnEmpty>,
 OnEmpty: Get<QueryKind::Query> + 'static,

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pub fn hashed_key() -> [u8 ; 32]

Get the storage key.

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pub fn exists() -> bool

Does the value (explicitly) exist in storage?

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pub fn get() -> QueryKind::Query

Load the value from the provided storage instance.

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pub fn try_get() -> Result<Value, ()>

Try to get the underlying value from the provided storage instance; Ok if it exists, Err if not.

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pub fn translate<O: Decode, F: FnOnce(Option<O>) -> Option<Value>>(
f: F
) -> Result<Option<Value>, ()>

Translate a value from some previous type (O) to the current type.

f: F is the translation function.

Returns Err if the storage item could not be interpreted as the old type, and Ok, along with the new value if it could.

NOTE: This operates from and to Option<_> types; no effort is made to respect the default value of the original type.

Warning

This function must be used with care, before being updated the storage still contains the old type, thus other calls (such as get) will fail at decoding it.

This would typically be called inside the module implementation of on_runtime_upgrade, while ensuring no usage of this storage are made before the call to on_runtime_upgrade. (More precisely prior initialized modules doesn’t make use of this storage).

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pub fn put<Arg: EncodeLike<Value>>(val: Arg)

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

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pub fn set(val: QueryKind::Query)

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

this uses the query type rather than the underlying value.

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pub fn mutate<R, F: FnOnce(&mut QueryKind::Query) -> R>(f: F) -> R

Mutate the value

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pub fn try_mutate<R, E, F: FnOnce(&mut QueryKind::Query) -> Result<R, E>>(
f: F
) -> Result<R, E>

Mutate the value if closure returns Ok

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pub fn kill()

Clear the storage value.

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pub fn take() -> QueryKind::Query

Take a value from storage, removing it afterwards.

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pub fn append<Item, EncodeLikeItem>(item: EncodeLikeItem) where
 Item: Encode,
 EncodeLikeItem: EncodeLike<Item>,
 Value: StorageAppend<Item>,

Append the given item to the value in the storage.

Value is required to implement StorageAppend.

Warning

If the storage item is not encoded properly, the storage item will be overwritten and set to [item]. Any default value set for the storage item will be ignored on overwrite.

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pub fn decode_len() -> Option<usize> where
Value: StorageDecodeLength,

Read the length of the storage value without decoding the entire value.

Value is required to implement StorageDecodeLength.

If the value does not exists or it fails to decode the length, None is returned. Otherwise Some(len) is returned.

Warning

None does not mean that get() does not return a value. The default value is completly ignored by this function.

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pub fn try_append<Item, EncodeLikeItem>(item: EncodeLikeItem) -> Result<(), ()> where
 Item: Encode,
 EncodeLikeItem: EncodeLike<Item>,
 Value: StorageTryAppend<Item>,

Try and append the given item to the value in the storage.

Is only available if Value of the storage implements StorageTryAppend.

Trait Implementations

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impl<Prefix, Value, QueryKind, OnEmpty> PartialStorageInfoTrait for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
 Prefix: StorageInstance,
 Value: FullCodec,
 QueryKind: QueryKindTrait<Value, OnEmpty>,
 OnEmpty: Get<QueryKind::Query> + 'static,

It doesn’t require to implement MaxEncodedLen and give no information for max_size.

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fn partial_storage_info() -> Vec<StorageInfo>ⓘ
Notable traits for Vec<u8, A>
`impl<A> Write for Vec<u8, A> where A: Allocator,`

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impl<Prefix, Value, QueryKind, OnEmpty> StorageEntryMetadataBuilder for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
 Prefix: StorageInstance,
 Value: FullCodec + StaticTypeInfo,
 QueryKind: QueryKindTrait<Value, OnEmpty>,
 OnEmpty: Get<QueryKind::Query> + 'static,

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fn build_metadata(
docs: Vec<&'static str>,
entries: &mut Vec<StorageEntryMetadata>
)

Build into entries the storage metadata entries of a storage given some docs.

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impl<Prefix, Value, QueryKind, OnEmpty> StorageInfoTrait for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
 Prefix: StorageInstance,
 Value: FullCodec + MaxEncodedLen,
 QueryKind: QueryKindTrait<Value, OnEmpty>,
 OnEmpty: Get<QueryKind::Query> + 'static,

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fn storage_info() -> Vec<StorageInfo>ⓘ
Notable traits for Vec<u8, A>
`impl<A> Write for Vec<u8, A> where A: Allocator,`

Auto Trait Implementations

impl<Prefix, Value, QueryKind, OnEmpty> RefUnwindSafe for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
 OnEmpty: RefUnwindSafe,
 Prefix: RefUnwindSafe,
 QueryKind: RefUnwindSafe,
 Value: RefUnwindSafe,

impl<Prefix, Value, QueryKind, OnEmpty> Send for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
 OnEmpty: Send,
 Prefix: Send,
 QueryKind: Send,
 Value: Send,

impl<Prefix, Value, QueryKind, OnEmpty> Sync for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
 OnEmpty: Sync,
 Prefix: Sync,
 QueryKind: Sync,
 Value: Sync,

impl<Prefix, Value, QueryKind, OnEmpty> Unpin for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
 OnEmpty: Unpin,
 Prefix: Unpin,
 QueryKind: Unpin,
 Value: Unpin,

impl<Prefix, Value, QueryKind, OnEmpty> UnwindSafe for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
 OnEmpty: UnwindSafe,
 Prefix: UnwindSafe,
 QueryKind: UnwindSafe,
 Value: UnwindSafe,

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CheckedConversion for T

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

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

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

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

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impl<T> Downcast for T where
T: Any,

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pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>ⓘ
Notable traits for Box<W, Global>
`impl<W> Write for Box<W, Global> where W: Write + ?Sized, impl<R> Read for Box<R, Global> where R: Read + ?Sized, impl<I, A> Iterator for Box<I, A> where I: Iterator + ?Sized, A: Allocator, type Item = ::Item;impl<F, A> Future for Box<F, A> where F: Future + Unpin + ?Sized, A: Allocator + 'static, type Output = <F as Future>::Output;`

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

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pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

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pub fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

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pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

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impl<T> DowncastSync for T where
T: Any + Send + Sync,

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pub fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send + 'static>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Performs the conversion.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

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

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fn in_current_span(self) -> Instrumented<Self>

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

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

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impl<T, Outer> IsWrappedBy<Outer> for T where
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,

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pub fn from_ref(outer: &Outer) -> &T

Get a reference to the inner from the outer.

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pub fn from_mut(outer: &mut Outer) -> &mut T

Get a mutable reference to the inner from the outer.

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impl<T> Same<T> for T

type Output = T

Should always be Self

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impl<T> SaturatedConversion for T

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

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

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

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

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impl<T, G> StorageValue<T> for G where
T: FullCodec,
G: StorageValue<T>,

type Query = G::Query

The type that get/take return.

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fn hashed_key() -> [u8 ; 32]

Get the storage key.

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fn exists() -> bool

Does the value (explicitly) exist in storage?

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fn get() -> Self::Query

Load the value from the provided storage instance.

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fn try_get() -> Result<T, ()>

Try to get the underlying value from the provided storage instance. Read more

source

fn translate<O: Decode, F: FnOnce(Option<O>) -> Option<T>>(
f: F
) -> Result<Option<T>, ()>

Translate a value from some previous type (O) to the current type. Read more

source

fn put<Arg: EncodeLike<T>>(val: Arg)

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

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fn set(maybe_val: Self::Query)

Store a value under this key into the provided storage instance; this uses the query type rather than the underlying value. Read more

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fn kill()

Clear the storage value.

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fn mutate<R, F: FnOnce(&mut G::Query) -> R>(f: F) -> R

Mutate the value

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fn try_mutate<R, E, F: FnOnce(&mut G::Query) -> Result<R, E>>(
f: F
) -> Result<R, E>

Mutate the value if closure returns Ok

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fn take() -> G::Query

Take a value from storage, removing it afterwards.

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fn append<Item, EncodeLikeItem>(item: EncodeLikeItem) where
 Item: Encode,
 EncodeLikeItem: EncodeLike<Item>,
 T: StorageAppend<Item>,

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

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fn decode_len() -> Option<usize> where
T: StorageDecodeLength,

Read the length of the storage value without decoding the entire value. Read more

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impl<T, I, StorageValueT> TryAppendValue<T, I> for StorageValueT where
 I: Encode,
 T: FullCodec + StorageTryAppend,
 StorageValueT: StorageValue<T>,

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fn try_append<LikeI: EncodeLike>(item: LikeI) -> Result<(), ()>

Try and append the item into the storage item. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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impl<S, T> UncheckedInto<T> for S where
T: UncheckedFrom<S>,

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pub fn unchecked_into(self) -> T

The counterpart to unchecked_from.

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

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pub fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,

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

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fn with_current_subscriber(self) -> WithDispatch<Self>

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

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Struct frame_support::pallet_prelude::StorageValue

Implementations

impl<Prefix, Value, QueryKind, OnEmpty> StorageValue<Prefix, Value, QueryKind, OnEmpty> where Prefix: StorageInstance, Value: FullCodec, QueryKind: QueryKindTrait<Value, OnEmpty>, OnEmpty: Get<QueryKind::Query> + 'static,

pub fn hashed_key() -> [u8; 32]

pub fn exists() -> bool

pub fn get() -> QueryKind::Query

pub fn try_get() -> Result<Value, ()>

pub fn translate<O: Decode, F: FnOnce(Option<O>) -> Option<Value>>( f: F) -> Result<Option<Value>, ()>

pub fn put<Arg: EncodeLike<Value>>(val: Arg)

pub fn set(val: QueryKind::Query)

pub fn mutate<R, F: FnOnce(&mut QueryKind::Query) -> R>(f: F) -> R

pub fn try_mutate<R, E, F: FnOnce(&mut QueryKind::Query) -> Result<R, E>>( f: F) -> Result<R, E>

pub fn kill()

pub fn take() -> QueryKind::Query

pub fn append<Item, EncodeLikeItem>(item: EncodeLikeItem) where Item: Encode, EncodeLikeItem: EncodeLike<Item>, Value: StorageAppend<Item>,

pub fn decode_len() -> Option<usize> where Value: StorageDecodeLength,

pub fn try_append<Item, EncodeLikeItem>(item: EncodeLikeItem) -> Result<(), ()> where Item: Encode, EncodeLikeItem: EncodeLike<Item>, Value: StorageTryAppend<Item>,

Trait Implementations

impl<Prefix, Value, QueryKind, OnEmpty> PartialStorageInfoTrait for StorageValue<Prefix, Value, QueryKind, OnEmpty> where Prefix: StorageInstance, Value: FullCodec, QueryKind: QueryKindTrait<Value, OnEmpty>, OnEmpty: Get<QueryKind::Query> + 'static,

fn partial_storage_info() -> Vec<StorageInfo>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator,

impl<Prefix, Value, QueryKind, OnEmpty> StorageEntryMetadataBuilder for StorageValue<Prefix, Value, QueryKind, OnEmpty> where Prefix: StorageInstance, Value: FullCodec + StaticTypeInfo, QueryKind: QueryKindTrait<Value, OnEmpty>, OnEmpty: Get<QueryKind::Query> + 'static,

fn build_metadata( docs: Vec<&'static str>, entries: &mut Vec<StorageEntryMetadata>)

impl<Prefix, Value, QueryKind, OnEmpty> StorageInfoTrait for StorageValue<Prefix, Value, QueryKind, OnEmpty> where Prefix: StorageInstance, Value: FullCodec + MaxEncodedLen, QueryKind: QueryKindTrait<Value, OnEmpty>, OnEmpty: Get<QueryKind::Query> + 'static,

fn storage_info() -> Vec<StorageInfo>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator,

Auto Trait Implementations

impl<Prefix, Value, QueryKind, OnEmpty> RefUnwindSafe for StorageValue<Prefix, Value, QueryKind, OnEmpty> where OnEmpty: RefUnwindSafe, Prefix: RefUnwindSafe, QueryKind: RefUnwindSafe, Value: RefUnwindSafe,

impl<Prefix, Value, QueryKind, OnEmpty> Send for StorageValue<Prefix, Value, QueryKind, OnEmpty> where OnEmpty: Send, Prefix: Send, QueryKind: Send, Value: Send,

impl<Prefix, Value, QueryKind, OnEmpty> Sync for StorageValue<Prefix, Value, QueryKind, OnEmpty> where OnEmpty: Sync, Prefix: Sync, QueryKind: Sync, Value: Sync,

impl<Prefix, Value, QueryKind, OnEmpty> Unpin for StorageValue<Prefix, Value, QueryKind, OnEmpty> where OnEmpty: Unpin, Prefix: Unpin, QueryKind: Unpin, Value: Unpin,

impl<Prefix, Value, QueryKind, OnEmpty> UnwindSafe for StorageValue<Prefix, Value, QueryKind, OnEmpty> where OnEmpty: UnwindSafe, Prefix: UnwindSafe, QueryKind: UnwindSafe, Value: UnwindSafe,

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> CheckedConversion for T

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

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

impl<T> Downcast for T where T: Any,

pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

pub fn as_any(&self) -> &(dyn Any + 'static)

pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

impl<T> DowncastSync for T where T: Any + Send + Sync,

pub fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send + 'static>

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T, Outer> IsWrappedBy<Outer> for T where Outer: AsRef<T> + AsMut<T> + From<T>, T: From<Outer>,

pub fn from_ref(outer: &Outer) -> &T

pub fn from_mut(outer: &mut Outer) -> &mut T

impl<T> Same<T> for T

type Output = T

impl<T> SaturatedConversion for T

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

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

impl<T, G> StorageValue<T> for G where T: FullCodec, G: StorageValue<T>,

type Query = G::Query

fn hashed_key() -> [u8; 32]

fn exists() -> bool

fn get() -> Self::Query

fn try_get() -> Result<T, ()>

fn translate<O: Decode, F: FnOnce(Option<O>) -> Option<T>>( f: F) -> Result<Option<T>, ()>

fn put<Arg: EncodeLike<T>>(val: Arg)

fn set(maybe_val: Self::Query)

fn kill()

fn mutate<R, F: FnOnce(&mut G::Query) -> R>(f: F) -> R

fn try_mutate<R, E, F: FnOnce(&mut G::Query) -> Result<R, E>>( f: F) -> Result<R, E>

fn take() -> G::Query

fn append<Item, EncodeLikeItem>(item: EncodeLikeItem) where Item: Encode, EncodeLikeItem: EncodeLike<Item>, T: StorageAppend<Item>,

fn decode_len() -> Option<usize> where T: StorageDecodeLength,

impl<T, I, StorageValueT> TryAppendValue<T, I> for StorageValueT where I: Encode, T: FullCodec + StorageTryAppend<I>, StorageValueT: StorageValue<T>,

fn try_append<LikeI: EncodeLike<I>>(item: LikeI) -> Result<(), ()>

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

impl<Prefix, Value, QueryKind, OnEmpty> StorageValue<Prefix, Value, QueryKind, OnEmpty> where
Prefix: StorageInstance,
Value: FullCodec,
QueryKind: QueryKindTrait<Value, OnEmpty>,
OnEmpty: Get<QueryKind::Query> + 'static,

pub fn hashed_key() -> [u8 ; 32]

pub fn translate<O: Decode, F: FnOnce(Option<O>) -> Option<Value>>(
f: F
) -> Result<Option<Value>, ()>

pub fn try_mutate<R, E, F: FnOnce(&mut QueryKind::Query) -> Result<R, E>>(
f: F
) -> Result<R, E>

pub fn append<Item, EncodeLikeItem>(item: EncodeLikeItem) where
Item: Encode,
EncodeLikeItem: EncodeLike<Item>,
Value: StorageAppend<Item>,

pub fn decode_len() -> Option<usize> where
Value: StorageDecodeLength,

pub fn try_append<Item, EncodeLikeItem>(item: EncodeLikeItem) -> Result<(), ()> where
Item: Encode,
EncodeLikeItem: EncodeLike<Item>,
Value: StorageTryAppend<Item>,

impl<Prefix, Value, QueryKind, OnEmpty> PartialStorageInfoTrait for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
Prefix: StorageInstance,
Value: FullCodec,
QueryKind: QueryKindTrait<Value, OnEmpty>,
OnEmpty: Get<QueryKind::Query> + 'static,

fn partial_storage_info() -> Vec<StorageInfo>ⓘ
Notable traits for Vec<u8, A>
`impl<A> Write for Vec<u8, A> where A: Allocator,`

impl<Prefix, Value, QueryKind, OnEmpty> StorageEntryMetadataBuilder for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
Prefix: StorageInstance,
Value: FullCodec + StaticTypeInfo,
QueryKind: QueryKindTrait<Value, OnEmpty>,
OnEmpty: Get<QueryKind::Query> + 'static,

fn build_metadata(
docs: Vec<&'static str>,
entries: &mut Vec<StorageEntryMetadata>
)

impl<Prefix, Value, QueryKind, OnEmpty> StorageInfoTrait for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
Prefix: StorageInstance,
Value: FullCodec + MaxEncodedLen,
QueryKind: QueryKindTrait<Value, OnEmpty>,
OnEmpty: Get<QueryKind::Query> + 'static,

fn storage_info() -> Vec<StorageInfo>ⓘ
Notable traits for Vec<u8, A>
`impl<A> Write for Vec<u8, A> where A: Allocator,`

impl<Prefix, Value, QueryKind, OnEmpty> RefUnwindSafe for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
OnEmpty: RefUnwindSafe,
Prefix: RefUnwindSafe,
QueryKind: RefUnwindSafe,
Value: RefUnwindSafe,

impl<Prefix, Value, QueryKind, OnEmpty> Send for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
OnEmpty: Send,
Prefix: Send,
QueryKind: Send,
Value: Send,

impl<Prefix, Value, QueryKind, OnEmpty> Sync for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
OnEmpty: Sync,
Prefix: Sync,
QueryKind: Sync,
Value: Sync,

impl<Prefix, Value, QueryKind, OnEmpty> Unpin for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
OnEmpty: Unpin,
Prefix: Unpin,
QueryKind: Unpin,
Value: Unpin,

impl<Prefix, Value, QueryKind, OnEmpty> UnwindSafe for StorageValue<Prefix, Value, QueryKind, OnEmpty> where
OnEmpty: UnwindSafe,
Prefix: UnwindSafe,
QueryKind: UnwindSafe,
Value: UnwindSafe,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

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

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

impl<T> Downcast for T where
T: Any,

impl<T> DowncastSync for T where
T: Any + Send + Sync,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, Outer> IsWrappedBy<Outer> for T where
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,

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

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

impl<T, G> StorageValue<T> for G where
T: FullCodec,
G: StorageValue<T>,

fn hashed_key() -> [u8 ; 32]

fn translate<O: Decode, F: FnOnce(Option<O>) -> Option<T>>(
f: F
) -> Result<Option<T>, ()>

fn try_mutate<R, E, F: FnOnce(&mut G::Query) -> Result<R, E>>(
f: F
) -> Result<R, E>

fn append<Item, EncodeLikeItem>(item: EncodeLikeItem) where
Item: Encode,
EncodeLikeItem: EncodeLike<Item>,
T: StorageAppend<Item>,

fn decode_len() -> Option<usize> where
T: StorageDecodeLength,

impl<T, I, StorageValueT> TryAppendValue<T, I> for StorageValueT where
I: Encode,
T: FullCodec + StorageTryAppend<I>,
StorageValueT: StorageValue<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<S, T> UncheckedInto<T> for S where
T: UncheckedFrom<S>,

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

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,

impl<T> MaybeRefUnwindSafe for T where
T: RefUnwindSafe,