frame_suite::virtuals

Struct NoneTag

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pub struct NoneTag;
Expand description

A discriminant representing the absence of a value in tagged conversions.

This is a zero-sized type used as a type-level primitive to select conversion behavior. It acts as a compile-time discriminator, allowing multiple interpretations over the same types.

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impl Clone for NoneTag

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fn clone(&self) -> NoneTag

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for NoneTag

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

Formats the value using the given formatter. Read more
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impl Default for NoneTag

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fn default() -> NoneTag

Returns the “default value” for a type. Read more
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impl FromTag<(), NoneTag> for ()

Trivial None conversion for unit.

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fn from_tag(_t: ()) -> Self

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impl<Type, S> FromTag<(), NoneTag> for SumDynType<Type, S>
where Type: Delimited, S: Get<u32> + Clone + Debug + 'static,

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fn from_tag(_t: ()) -> Self

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impl<Type, const N: usize> FromTag<(), NoneTag> for SumStaticType<Type, N>
where Type: Delimited,

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fn from_tag(_t: ()) -> Self

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impl TryIntoTag<(), NoneTag> for ()

Trivial extraction of None from unit.

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type Error = Infallible

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fn try_into_tag(self) -> Result<Self, Self::Error>

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impl<Type, S> TryIntoTag<(), NoneTag> for SumDynType<Type, S>
where Type: Delimited, S: Get<u32> + Clone + Debug + 'static,

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type Error = ()

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fn try_into_tag(self) -> Result<(), Self::Error>

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impl<Type, const N: usize> TryIntoTag<(), NoneTag> for SumStaticType<Type, N>
where Type: Delimited,

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type Error = ()

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fn try_into_tag(self) -> Result<(), Self::Error>

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impl Copy for NoneTag

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impl DiscriminantTag for NoneTag

Auto Trait Implementations§

Blanket Implementations§

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

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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,

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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,

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> DynClone for T
where T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoEither for T

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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
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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
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impl<T, U> IntoKey<U> for T
where U: FromKey<T>,

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fn into_key(self) -> U

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impl<T, U, Tag> IntoTag<U, Tag> for T
where U: FromTag<T, Tag>, Tag: DiscriminantTag,

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fn into_tag(self) -> U

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impl<Src, Dest> IntoTuple<Dest> for Src
where Dest: FromTuple<Src>,

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fn into_tuple(self) -> Dest

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impl<T> IsType<T> for T

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fn from_ref(t: &T) -> &T

Cast reference.
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fn into_ref(&self) -> &T

Cast reference.
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fn from_mut(t: &mut T) -> &mut T

Cast mutable reference.
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fn into_mut(&mut self) -> &mut T

Cast mutable reference.
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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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fn from_ref(outer: &Outer) -> &T

Get a reference to the inner from the outer.

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

Get a mutable reference to the inner from the outer.

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impl<T, Time> Logging<Time> for T
where Time: Time,

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const FALLBACK_TARGET: &'static str = const FALLBACK_TARGET: &'_ str = "routine";

Default logging target if none is provided.

Most routines, especially offchain workers or background tasks, use this target for simplicity.

It allows a consistent place to look for routine logs without requiring every call to specify a target.

Note: This target is only a conveninence and may be somewhat vague. To ensure errors can still be traced accurately, the logged messages should include additional metadata (e.g., module name, error index, or contextual info) so that the source of the error can be identified even if the target is generic.

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type Logger = DispatchError

The type taken and returned for logging.

We simply return the same [DispatchError] that was logged, so logging does not change control flow or error propagation.

DispatchError is used because in Substrate it encompasses all runtime errors - including module errors, token errors, arithmetic issues, and transactional boundaries - making it the universal substrate-side error representation.

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type Level = LogLevel

The log level type.

We use the LogLevel enum to standardize severity levels (Info, Warn, Error, Debug) across all routine logs.

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fn log( level: <T as Logging<Time>>::Level, err: &<T as Logging<Time>>::Logger, timestamp: Time, target: Option<&str>, fmt: Option<fn(Time, &<T as Logging<Time>>::Level, &str, &str) -> String>, ) -> <T as Logging<Time>>::Logger

Core logging function that all helpers delegate to. Read more
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fn info( err: &Self::Logger, timestamp: Timestamp, target: Option<&str>, fmt: Option<LogFormatter<Timestamp, Self::Level>>, ) -> Self::Logger
where Self: Sized,

Logs an info-level message. Read more
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fn warn( err: &Self::Logger, timestamp: Timestamp, target: Option<&str>, fmt: Option<LogFormatter<Timestamp, Self::Level>>, ) -> Self::Logger
where Self: Sized,

Logs a warning-level message. Read more
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fn error( err: &Self::Logger, timestamp: Timestamp, target: Option<&str>, fmt: Option<LogFormatter<Timestamp, Self::Level>>, ) -> Self::Logger
where Self: Sized,

Logs an error-level message. Read more
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fn debug( err: &Self::Logger, timestamp: Timestamp, target: Option<&str>, fmt: Option<LogFormatter<Timestamp, Self::Level>>, ) -> Self::Logger
where Self: Sized,

Logs a debug-level message. Read more
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impl<T> Same for T

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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T, U> TryIntoKey<U> for T
where U: TryFromKey<T>,

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

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fn try_into_key(self) -> Result<U, <U as TryFromKey<T>>::Error>

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

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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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fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for 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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impl<Provider, Discriminant, T> DelegateVirtualDynBound<Provider, Discriminant> for T
where Provider: VirtualDynBound<Discriminant>, Discriminant: DiscriminantTag,

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impl<Provider, Discriminant, T> DelegateVirtualStaticBound<Provider, Discriminant> for T
where Provider: VirtualStaticBound<Discriminant>, Discriminant: DiscriminantTag,

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impl<T> JsonSchemaMaybe for T

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impl<T> MaybeDebug for T
where T: Debug,

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