Enum Value

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pub enum Value {
Show 14 variants Bool(Option<bool>), TinyInt(Option<i8>), SmallInt(Option<i16>), Int(Option<i32>), BigInt(Option<i64>), TinyUnsigned(Option<u8>), SmallUnsigned(Option<u16>), Unsigned(Option<u32>), BigUnsigned(Option<u64>), Float(Option<f32>), Double(Option<f64>), String(Option<Box<String>>), Char(Option<char>), Bytes(Option<Box<Vec<u8>>>),
}
Expand description

Value variants

We want Value to be exactly 1 pointer sized, so anything larger should be boxed.

Variants§

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Bool(Option<bool>)

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TinyInt(Option<i8>)

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SmallInt(Option<i16>)

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Int(Option<i32>)

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BigInt(Option<i64>)

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TinyUnsigned(Option<u8>)

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SmallUnsigned(Option<u16>)

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Unsigned(Option<u32>)

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BigUnsigned(Option<u64>)

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Float(Option<f32>)

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Double(Option<f64>)

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String(Option<Box<String>>)

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Char(Option<char>)

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Bytes(Option<Box<Vec<u8>>>)

Implementations§

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impl Value

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pub fn unwrap<T>(self) -> T
where T: ValueType,

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pub fn expect<T>(self, msg: &str) -> T
where T: ValueType,

Trait Implementations§

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impl Clone for Value

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fn clone(&self) -> Value

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Value

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

Formats the value using the given formatter. Read more
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impl Display for Value

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

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

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fn from(x: &'a [u8]) -> Value

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

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fn from(x: &'a str) -> Value

Converts to this type from the input type.
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impl<T> From<Option<T>> for Value
where T: Into<Value> + Nullable,

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fn from(x: Option<T>) -> Value

Converts to this type from the input type.
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impl From<String> for Value

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fn from(x: String) -> Value

Converts to this type from the input type.
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impl From<Vec<u8>> for Value

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fn from(x: Vec<u8>) -> Value

Converts to this type from the input type.
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impl From<bool> for Value

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fn from(x: bool) -> Value

Converts to this type from the input type.
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impl From<char> for Value

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fn from(x: char) -> Value

Converts to this type from the input type.
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impl From<f32> for Value

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fn from(x: f32) -> Value

Converts to this type from the input type.
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impl From<f64> for Value

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fn from(x: f64) -> Value

Converts to this type from the input type.
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impl From<i16> for Value

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fn from(x: i16) -> Value

Converts to this type from the input type.
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impl From<i32> for Value

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fn from(x: i32) -> Value

Converts to this type from the input type.
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impl From<i64> for Value

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fn from(x: i64) -> Value

Converts to this type from the input type.
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impl From<i8> for Value

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fn from(x: i8) -> Value

Converts to this type from the input type.
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impl From<u16> for Value

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fn from(x: u16) -> Value

Converts to this type from the input type.
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impl From<u32> for Value

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fn from(x: u32) -> Value

Converts to this type from the input type.
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impl From<u64> for Value

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fn from(x: u64) -> Value

Converts to this type from the input type.
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impl From<u8> for Value

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fn from(x: u8) -> Value

Converts to this type from the input type.
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impl PartialEq for Value

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

Auto Trait Implementations§

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impl Freeze for Value

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impl RefUnwindSafe for Value

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impl Send for Value

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impl Sync for Value

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impl Unpin for Value

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impl UnwindSafe for Value

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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> IntoEither for T

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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
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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
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impl<V> IntoValueTuple for V
where V: Into<Value>,

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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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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
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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> MaybeSendSync for T