frame_support::traits::tokens::asset_ops::common_strategies

Struct CheckState

pub struct CheckState<Inspect: InspectStrategy, Inner = NoParams>(pub Inspect::Value, pub Inner);

Expand description

The CheckState is a strategy that accepts an Inspect value and the Inner strategy.

It is meant to be used when the asset state check should be performed prior to the Inner strategy execution. The inspected state must be equal to the provided value.

The CheckState implements all potentially state-mutating strategies that the Inner implements.

Tuple Fields§

§0: Inspect::Value§1: Inner

Implementations§

Source §

impl<Inspect: InspectStrategy, Inner: Default> CheckState<Inspect, Inner>

Source

pub fn check(expected: Inspect::Value) -> Self

This function creates a CheckState strategy. The operation that accepts it must check if the provided expected value equals the in-storage one.

If so, the operation must, in turn, proceed according to the default value of the Inner strategy.

Source §

impl<Inspect: InspectStrategy, Inner> CheckState<Inspect, Inner>

Source

pub fn new(expected: Inspect::Value, inner: Inner) -> Self

This function creates a CheckState strategy. The operation that accepts it must check if the provided expected value equals the in-storage one.

If so, the operation must, in turn, proceed according to the provided value of the Inner strategy.

Trait Implementations§

Source §

impl<Inspect: InspectStrategy, Inner: CreateStrategy> CreateStrategy for CheckState<Inspect, Inner>

Source §

type Success = <Inner as CreateStrategy>::Success

This type represents a successful asset creation. It will be in the Result type of the Create::create function.

Source §

impl<Inspect: InspectStrategy, Inner: DestroyStrategy> DestroyStrategy for CheckState<Inspect, Inner>

Source §

type Success = <Inner as DestroyStrategy>::Success

This type represents a successful asset destruction. It will be in the Result type of the Destroy::destroy function.

Source §

impl<Inspect: InspectStrategy, Inner: RestoreStrategy> RestoreStrategy for CheckState<Inspect, Inner>

Source §

type Success = <Inner as RestoreStrategy>::Success

This type represents a successful asset restoration. It will be in the Result type of the Restore::restore function.

Source §

impl<Inspect: InspectStrategy, Inner: StashStrategy> StashStrategy for CheckState<Inspect, Inner>

Source §

type Success = <Inner as StashStrategy>::Success

This type represents a successful asset stashing. It will be in the Result type of the Stash::stash function.

Source §

impl<Inspect: InspectStrategy, Inner: UpdateStrategy> UpdateStrategy for CheckState<Inspect, Inner>

Source §

type UpdateValue<'u> = <Inner as UpdateStrategy>::UpdateValue<'u>

The value to update the asset’s state. Usually, it should be related to the corresponding InspectStrategy::Value. Read more

Source §

type Success = <Inner as UpdateStrategy>::Success

This type represents a successful asset state update. It will be in the Result type of the Update::update function.

Auto Trait Implementations§

§

impl<Inspect, Inner> Freeze for CheckState<Inspect, Inner>
where <Inspect as InspectStrategy>::Value: Freeze, Inner: Freeze,

§

impl<Inspect, Inner> RefUnwindSafe for CheckState<Inspect, Inner>
where <Inspect as InspectStrategy>::Value: RefUnwindSafe, Inner: RefUnwindSafe,

§

impl<Inspect, Inner> Send for CheckState<Inspect, Inner>
where <Inspect as InspectStrategy>::Value: Send, Inner: Send,

§

impl<Inspect, Inner> Sync for CheckState<Inspect, Inner>
where <Inspect as InspectStrategy>::Value: Sync, Inner: Sync,

§

impl<Inspect, Inner> Unpin for CheckState<Inspect, Inner>
where <Inspect as InspectStrategy>::Value: Unpin, Inner: Unpin,

§

impl<Inspect, Inner> UnwindSafe for CheckState<Inspect, Inner>
where <Inspect as InspectStrategy>::Value: UnwindSafe, Inner: UnwindSafe,

Blanket Implementations§

Source §

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

Source §

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

Source §

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

Source §

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

Source §

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

Mutably borrows from an owned value. Read more

Source §

impl<T> CheckedConversion for T

Source §

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

Source §

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

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

Source §

impl<T, U> DefensiveTruncateInto for T
where U: DefensiveTruncateFrom<T>,

Source §

fn defensive_truncate_into(self) -> U

Defensively truncate a value and convert it into its bounded form.

Source §

impl<T> From<T> for T

Source §

fn from(t: T) -> T

Returns the argument unchanged.

Source §

impl<T> Instrument for T

Source §

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

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

Source §

fn in_current_span(self) -> Instrumented<Self>

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

Source §

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

Source §

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source §

impl<T> IntoEither for T

Source §

fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §