mysql_connector::model

Enum ActiveValue

Source 
pub enum ActiveValue<T> {
    Set(T),
    Unset,
}

Variants§

§

Set(T)

§

Unset

Implementations§

Source§

impl<T> ActiveValue<T>
where T: TryInto<Value>, <T as TryInto<Value>>::Error: Into<SerializeError>,

Source

pub fn insert_named_value( self, vec: &mut Vec<NamedValue>, name: &'static str, ) -> Result<(), SerializeError>

Trait Implementations§

Source§

impl<T: Debug> Debug for ActiveValue<T>

Source§

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

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

impl<T> Default for ActiveValue<T>

Source§

fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

§

impl<T> Freeze for ActiveValue<T>
where T: Freeze,

§

impl<T> RefUnwindSafe for ActiveValue<T>
where T: RefUnwindSafe,

§

impl<T> Send for ActiveValue<T>
where T: Send,

§

impl<T> Sync for ActiveValue<T>
where T: Sync,

§

impl<T> Unpin for ActiveValue<T>
where T: Unpin,

§

impl<T> UnwindSafe for ActiveValue<T>
where T: UnwindSafe,

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> 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> Pointable for T

Source§

const ALIGN: usize

The alignment of pointer.
Source§

type Init = T

The type for initializers.
Source§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
Source§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
Source§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
Source§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
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.
Source§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

Source§

fn vzip(self) -> V