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Val

Enum Val

pub enum Val {
    NullText,
    NullI64,
    Bool(bool),
    I64(i64),
    Text(String),
}

Expand description

A backend-agnostic bound parameter.

Nulls are typed (NullText / NullI64) so PostgreSQL — which, unlike SQLite, will not infer the type of a bare NULL parameter in every position — always receives a parameter with a concrete type.

Variants§

NullText

NullI64

Bool(bool)

I64(i64)

Text(String)

Trait Implementations§

impl Clone for Val

fn clone(&self) -> Val

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

impl Debug for Val

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

Formats the value using the given formatter. Read more

impl From<&GameId> for Val

fn from(v: &GameId) -> Self

Converts to this type from the input type.

impl From<&ModId> for Val

fn from(v: &ModId) -> Self

Converts to this type from the input type.

impl From<&String> for Val

fn from(s: &String) -> Self

Converts to this type from the input type.

impl From<&str> for Val

fn from(s: &str) -> Self

Converts to this type from the input type.

impl From<Option<&str>> for Val

fn from(v: Option<&str>) -> Self

Converts to this type from the input type.

impl From<Option<String>> for Val

fn from(v: Option<String>) -> Self

Converts to this type from the input type.

impl From<Option<i64>> for Val

fn from(v: Option<i64>) -> Self

Converts to this type from the input type.

impl From<String> for Val

fn from(s: String) -> Self

Converts to this type from the input type.

impl From<bool> for Val

fn from(v: bool) -> Self

Converts to this type from the input type.

impl From<i64> for Val

fn from(v: i64) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

impl Freeze for Val

impl RefUnwindSafe for Val

impl Send for Val

impl Sync for Val

impl Unpin for Val

impl UnsafeUnpin for Val

impl UnwindSafe for Val

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> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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

fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more

fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more

impl<T> Same for T

type Output = T

Should always be Self

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.

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

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more