Skip to main content

MapValue

Struct MapValue 

Source
pub struct MapValue<'a>(/* private fields */);
Expand description

A borrowed view over a map value.

Implementations§

Source§

impl<'a> MapValue<'a>

Source

pub fn len(&self) -> usize

Get the number of key-values.

Source

pub fn is_empty(&self) -> bool

Check if there are no key-value pairs.

Source

pub fn iter(&self) -> MapValueIter<'a>

Get an iterator over the map key-value pairs.

Source

pub fn get(&self, key: &str) -> Option<ValueView<'a>>

Get the value for a given key.

Trait Implementations§

Source§

impl<'a> Clone for MapValue<'a>

Source§

fn clone(&self) -> MapValue<'a>

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<'a> Debug for MapValue<'a>

Source§

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

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

impl Serialize for MapValue<'_>

Available on crate feature serde only.
Source§

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer. Read more
Source§

impl<'a> Copy for MapValue<'a>

Auto Trait Implementations§

§

impl<'a> Freeze for MapValue<'a>

§

impl<'a> !RefUnwindSafe for MapValue<'a>

§

impl<'a> !Send for MapValue<'a>

§

impl<'a> !Sync for MapValue<'a>

§

impl<'a> Unpin for MapValue<'a>

§

impl<'a> UnsafeUnpin for MapValue<'a>

§

impl<'a> !UnwindSafe for MapValue<'a>

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 = Infallible

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

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

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.