Enum libsql::ValueRef

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pub enum ValueRef<'a> {
    Null,
    Integer(i64),
    Real(f64),
    Text(&'a [u8]),
    Blob(&'a [u8]),
}
Expand description

A borrowed version of Value.

Variants§

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Null

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Integer(i64)

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Real(f64)

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Text(&'a [u8])

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Blob(&'a [u8])

Implementations§

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impl ValueRef<'_>

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pub fn data_type(&self) -> ValueType

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pub fn is_null(&self) -> bool

Returns true if the value ref is Null.

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pub fn is_integer(&self) -> bool

Returns true if the value ref is Integer.

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pub fn as_integer(&self) -> Option<&i64>

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pub fn is_real(&self) -> bool

Returns true if the value ref is Real.

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pub fn as_real(&self) -> Option<&f64>

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pub fn is_text(&self) -> bool

Returns true if the value ref is Text.

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pub fn as_text(&self) -> Option<&[u8]>

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pub fn is_blob(&self) -> bool

Returns true if the value ref is Blob.

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pub fn as_blob(&self) -> Option<&[u8]>

Trait Implementations§

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impl<'a> Debug for ValueRef<'a>

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

Formats the value using the given formatter. Read more
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impl<'a> From<&'a [u8]> for ValueRef<'a>

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fn from(s: &[u8]) -> ValueRef<'_>

Converts to this type from the input type.
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impl<'a> From<&'a Value> for ValueRef<'a>

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fn from(v: &'a Value) -> ValueRef<'a>

Converts to this type from the input type.
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impl<'a> From<&'a str> for ValueRef<'a>

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fn from(s: &str) -> ValueRef<'_>

Converts to this type from the input type.
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impl<'a, T> From<Option<T>> for ValueRef<'a>
where T: Into<ValueRef<'a>>,

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fn from(s: Option<T>) -> ValueRef<'a>

Converts to this type from the input type.
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impl<'a> From<Value> for ValueRef<'a>

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fn from(value: Value) -> ValueRef<'a>

Converts to this type from the input type.
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impl From<ValueRef<'_>> for Value

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fn from(vr: ValueRef<'_>) -> Value

Converts to this type from the input type.

Auto Trait Implementations§

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impl<'a> Freeze for ValueRef<'a>

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impl<'a> RefUnwindSafe for ValueRef<'a>

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impl<'a> Send for ValueRef<'a>

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impl<'a> Sync for ValueRef<'a>

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impl<'a> Unpin for ValueRef<'a>

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impl<'a> UnwindSafe for ValueRef<'a>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoRequest<T> for T

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fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request
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impl<T> IntoValue for T
where T: TryInto<Value>, <T as TryInto<Value>>::Error: Into<Box<dyn Error + Send + Sync>>,

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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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
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fn with_current_subscriber(self) -> WithDispatch<Self>

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