gel_protocol::value_opt

Struct ValueOpt

pub struct ValueOpt(/* private fields */);

Expand description

An optional Value that can be constructed from impl Into<Value>, Option<impl Into<Value>>, Vec<impl Into<Value>> or Option<Vec<impl Into<Value>>>. Used by named_args! macro.

Trait Implementations§

impl Clone for ValueOpt

fn clone(&self) -> ValueOpt

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Debug for ValueOpt

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

Formats the value using the given formatter. Read more

impl<V: Into<Value>> From<Option<V>> for ValueOpt
where Value: From<V>,

fn from(value: Option<V>) -> Self

Converts to this type from the input type.

impl<V: Into<Value>> From<Option<Vec<V>>> for ValueOpt
where Value: From<V>,

fn from(value: Option<Vec<V>>) -> Self

Converts to this type from the input type.

impl<V: Into<Value>> From<V> for ValueOpt

fn from(value: V) -> Self

Converts to this type from the input type.

impl From<ValueOpt> for Option<Value>

fn from(value: ValueOpt) -> Self

Converts to this type from the input type.

impl<V: Into<Value>> From<Vec<V>> for ValueOpt
where Value: From<V>,

fn from(value: Vec<V>) -> Self

Converts to this type from the input type.

impl PartialEq for ValueOpt

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

Tests for self and other values to be equal, and is used by ==.

1.0.0 · Source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ValueOpt

Auto Trait Implementations§

impl !Freeze for ValueOpt

impl RefUnwindSafe for ValueOpt

impl Send for ValueOpt

impl Sync for ValueOpt

impl Unpin for ValueOpt

impl UnwindSafe for ValueOpt

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> CloneToUninit for T
where T: Clone,

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

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

fn to_vec<F>(&self) -> Vec<u8> ⓘ
where F: 'static, Self: EncoderFor<F>,

Convert this builder into a vector of bytes. This is generally not the most efficient way to perform serialization.

fn encode_buffer<F>(&self, buf: &mut [u8]) -> Result<usize, usize>
where F: 'static, Self: EncoderFor<F>,

Encode this builder into a given buffer. If the buffer is too small, the function will return the number of bytes required to encode the builder.

fn encode_buffer_uninit<'a, F>( &self, buf: &'a mut [MaybeUninit<u8>], ) -> Result<&'a mut [u8], usize>
where F: 'static, Self: EncoderFor<F>,

Encode this builder into a given buffer. If the buffer is too small, the function will return the number of bytes required to encode the builder.

fn measure<F>(&self) -> usize
where F: 'static, Self: EncoderFor<F>,

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> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

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

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

Uses borrowed data to replace owned data, usually by cloning. 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.