Struct IsNullExprEncoding

pub struct IsNullExprEncoding;

Methods from Deref<Target = dyn ExprEncoding>§

pub fn is<V: VTable>(&self) -> bool

pub fn as_<V: VTable>(&self) -> &V::Encoding

pub fn as_opt<V: VTable>(&self) -> Option<&V::Encoding>

Trait Implementations§

impl AsRef<dyn ExprEncoding> for IsNullExprEncoding

fn as_ref(&self) -> &dyn ExprEncoding

Converts this type into a shared reference of the (usually inferred) input type.

impl Deref for IsNullExprEncoding

type Target = dyn ExprEncoding

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

Auto Trait Implementations§

impl Freeze for IsNullExprEncoding

impl RefUnwindSafe for IsNullExprEncoding

impl Send for IsNullExprEncoding

impl Sync for IsNullExprEncoding

impl Unpin for IsNullExprEncoding

impl UnwindSafe for IsNullExprEncoding

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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where T: ?Sized,

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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> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

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where P: Deref<Target = T> + ?Sized, T: ?Sized,

type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)

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where U: Into<T>,

type Error = Infallible

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

Performs the conversion.

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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.

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where T: RefUnwindSafe + Send + Sync,

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