Struct ord_lmdb_zero::Ignore

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pub struct Ignore;

Expand description

Empty type used to indicate “don’t care” when reading values from LMDB.

FromLmdbBytes is implemented for this type by simply returning its only value without inspecting anything.

Trait Implementations

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impl FromLmdbBytes for Ignore

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fn from_lmdb_bytes(_: &[u8 ]) -> Result<&Ignore, String>

Given a byte slice, return an instance of Self described, or Err with an error message if the given byte slice is not an appropriate value. Read more

Auto Trait Implementations

impl RefUnwindSafe for Ignore

impl Send for Ignore

impl Sync for Ignore

impl Unpin for Ignore

impl UnwindSafe for Ignore

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,

const: unstable · source

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

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · 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.

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

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fn borrow_replacement(ptr: &T) -> &T

Given ptr, which was obtained from a prior call to Self::borrow(), return a value with the same nominal lifetime which is guaranteed to survive mutations to Self. 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

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

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

Performs the conversion.

Struct ord_lmdb_zero::Ignore

Trait Implementations

impl FromLmdbBytes for Ignore

fn from_lmdb_bytes(_: &[u8 ]) -> Result<&Ignore, String>

Auto Trait Implementations

impl RefUnwindSafe for Ignore

impl Send for Ignore

impl Sync for Ignore

impl Unpin for Ignore

impl UnwindSafe for Ignore

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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

fn borrow_replacement(ptr: &T) -> &T

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

type Error = Infallible

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

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

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

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

Struct ord_lmdb_zero::Ignore

Trait Implementations

impl FromLmdbBytes for Ignore

fn from_lmdb_bytes(_: &[u8]) -> Result<&Ignore, String>

Auto Trait Implementations

impl RefUnwindSafe for Ignore

impl Send for Ignore

impl Sync for Ignore

impl Unpin for Ignore

impl UnwindSafe for Ignore

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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

fn borrow_replacement(ptr: &T) -> &T

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

type Error = Infallible

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

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

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

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

fn from_lmdb_bytes(_: &[u8 ]) -> Result<&Ignore, String>

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,

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

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

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

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