sp_runtime::traits

Struct Identity

pub struct Identity;

Expand description

A structure that performs identity conversion.

Trait Implementations§

impl<T> Convert<T, T> for Identity

fn convert(a: T) -> T

Make conversion.

impl<T> ConvertBack<T, T> for Identity

fn convert_back(a: T) -> T

Make conversion back.

impl<T> MaybeConvert<T, T> for Identity

fn maybe_convert(a: T) -> Option<T>

Attempt to make conversion.

impl<T> MaybeConvertBack<T, T> for Identity

fn maybe_convert_back(a: T) -> Option<T>

Attempt to make conversion back.

impl<T: Clone> MaybeEquivalence<T, T> for Identity

fn convert(a: &T) -> Option<T>

Attempt to convert reference of A into value of B, returning None if not possible.

fn convert_back(a: &T) -> Option<T>

Attempt to convert reference of B into value of A, returning None if not possible.

impl<T> Morph<T> for Identity

A structure that performs identity conversion.

type Outcome = T

The type into which A is mutated.

fn morph(a: T) -> T

Make conversion.

impl<T> TryConvert<T, T> for Identity

fn try_convert(a: T) -> Result<T, T>

Attempt to make conversion. If returning Result::Err, the inner must always be a.

impl<T> TryConvertBack<T, T> for Identity

fn try_convert_back(a: T) -> Result<T, T>

Attempt to make conversion back. If returning Result::Err, the inner must always be b.

impl<T> TryMorph<T> for Identity

A structure that performs identity conversion.

type Outcome = T

The type into which A is mutated.

fn try_morph(a: T) -> Result<T, ()>

Make conversion.

Auto Trait Implementations§

impl Freeze for Identity

impl RefUnwindSafe for Identity

impl Send for Identity

impl Sync for Identity

impl Unpin for Identity

impl UnwindSafe for Identity

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> CheckedConversion for T

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

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

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

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

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

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

fn in_current_span(self) -> Instrumented<Self>

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

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> IntoEither for T

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

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

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

fn into_tuple(self) -> Dest

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

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

Get a reference to the inner from the outer.

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

Get a mutable reference to the inner from the outer.

impl<T> Same for T

type Output = T

Should always be Self

impl<T> SaturatedConversion for T

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

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

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

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

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

fn unchecked_into(self) -> T

The counterpart to unchecked_from.

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

fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.

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

fn vzip(self) -> V

impl<T> WithSubscriber for T

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

fn with_current_subscriber(self) -> WithDispatch<Self>

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

impl<T> JsonSchemaMaybe for T

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