Skip to main content

Field

Struct Field 

Source
pub struct Field { /* private fields */ }
Expand description

One BITFIELD field type: u8, i37 and so on.

Unsigned goes up to 63 bits and signed to 64, which is Redis’s rule and not an accident of the reply type: every value comes back as a RESP integer and a RESP integer is signed, so a u64 could not be reported.

Implementations§

Source§

impl Field

Source

pub const fn new(signed: bool, bits: u32) -> Option<Field>

A field of bits bits, or None if that is not a width Redis takes.

Source

pub fn parse(word: &[u8]) -> Option<Field>

The u8 or i37 a client sends.

Source

pub const fn bits(self) -> u32

How wide.

Source

pub const fn signed(self) -> bool

Whether the top bit is a sign.

Source

pub const fn max(self) -> i64

The largest value it holds.

Source

pub const fn min(self) -> i64

The smallest value it holds, which is zero when it is unsigned.

Source

pub const fn last_bit(self, at: u64) -> u64

The last bit a field at at touches, which is what a caller grows to.

Trait Implementations§

Source§

impl Clone for Field

Source§

fn clone(&self) -> Field

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
Source§

impl Copy for Field

Source§

impl Debug for Field

Source§

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

Formats the value using the given formatter. Read more
Source§

impl Eq for Field

Source§

impl PartialEq for Field

Source§

fn eq(&self, other: &Field) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
Source§

impl StructuralPartialEq for Field

Auto Trait Implementations§

§

impl Freeze for Field

§

impl RefUnwindSafe for Field

§

impl Send for Field

§

impl Sync for Field

§

impl Unpin for Field

§

impl UnsafeUnpin for Field

§

impl UnwindSafe for Field

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§

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

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> CloneToUninit for T
where T: Clone,

Source§

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
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> 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> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

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

Source§

type Error = !

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, !>

Performs the conversion.
Source§

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

Source§

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

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.