Enum mysql_async::Value

pub enum Value {
    NULL,
    Bytes(Vec<u8>),
    Int(i64),
    UInt(u64),
    Float(f32),
    Double(f64),
    Date(u16, u8, u8, u8, u8, u8, u32),
    Time(bool, u32, u8, u8, u8, u32),
}

Expand description

Client side representation of a value of MySql column.

The Value is also used as a parameter to a prepared statement.

Variants§

NULL

Bytes(Vec<u8>)

Int(i64)

UInt(u64)

Float(f32)

Double(f64)

Date(u16, u8, u8, u8, u8, u8, u32)

year, month, day, hour, minutes, seconds, micro seconds

Time(bool, u32, u8, u8, u8, u32)

is negative, days, hours, minutes, seconds, micro seconds

Implementations§

impl Value

pub fn bin_len(&self) -> u64

Returns length in binary serialized form.

pub fn as_sql(&self, no_backslash_escape: bool) -> String

Trait Implementations§

impl Clone for Value

fn clone(&self) -> Value

Returns a copy of the value. Read more

1.0.0 · source§

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

Performs copy-assignment from source. Read more

impl Debug for Value

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

Formats the value using the given formatter. Read more

impl<'a> From<&'a [u8]> for Value

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

Converts to this type from the input type.

impl<'a, T> From<&'a T> for Value
where T: ToValue,

fn from(x: &'a T) -> Value

Converts to this type from the input type.

impl<'a> From<&'a str> for Value

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

Converts to this type from the input type.

impl<const N: usize> From<[u8; N]> for Value

fn from(x: [u8; N]) -> Value

Converts to this type from the input type.

impl From<Arc<[u8]>> for Value

fn from(x: Arc<[u8]>) -> Value

Converts to this type from the input type.

impl From<Arc<str>> for Value

fn from(x: Arc<str>) -> Value

Converts to this type from the input type.

impl From<BigInt> for Value

fn from(x: BigInt) -> Value

Converts to this type from the input type.

impl From<BigUint> for Value

fn from(x: BigUint) -> Value

Converts to this type from the input type.

impl From<Box<[u8]>> for Value

fn from(x: Box<[u8]>) -> Value

Converts to this type from the input type.

impl From<Box<str>> for Value

fn from(x: Box<str>) -> Value

Converts to this type from the input type.

impl<'a, T> From<Cow<'a, T>> for Value
where T: ToOwned, <T as ToOwned>::Owned: Into<Value>, &'a T: Into<Value>,

fn from(x: Cow<'a, T>) -> Value

Converts to this type from the input type.

impl From<Duration> for Value

fn from(x: Duration) -> Value

Converts to this type from the input type.

impl From<NaiveDate> for Value

fn from(x: NaiveDate) -> Value

Converts to this type from the input type.

impl From<NaiveDateTime> for Value

fn from(x: NaiveDateTime) -> Value

Converts to this type from the input type.

impl From<NaiveTime> for Value

fn from(x: NaiveTime) -> Value

Converts to this type from the input type.

impl<T> From<Option<T>> for Value
where T: Into<Value>,

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

Converts to this type from the input type.

impl<T> From<OptionIr2<T>> for Value
where T: FromValue, <T as FromValue>::Intermediate: Into<Value>,

fn from(ir: OptionIr2<T>) -> Value

Converts to this type from the input type.

impl From<ParseIr<BigInt>> for Value

fn from(value: ParseIr<BigInt>) -> Value

Converts to this type from the input type.

impl From<ParseIr<BigUint>> for Value

fn from(value: ParseIr<BigUint>) -> Value

Converts to this type from the input type.

impl<T> From<ParseIr<Deserialized<T>>> for Value
where T: DeserializeOwned,

fn from(value: ParseIr<Deserialized<T>>) -> Value

Converts to this type from the input type.

impl From<ParseIr<NaiveDate>> for Value

fn from(value: ParseIr<NaiveDate>) -> Value

Converts to this type from the input type.

impl From<ParseIr<NaiveDateTime>> for Value

fn from(value: ParseIr<NaiveDateTime>) -> Value

Converts to this type from the input type.

impl From<ParseIr<NaiveTime>> for Value

fn from(value: ParseIr<NaiveTime>) -> Value

Converts to this type from the input type.

impl From<ParseIr<Uuid>> for Value

fn from(value: ParseIr<Uuid>) -> Value

Converts to this type from the input type.

impl From<ParseIr<Value>> for Value

fn from(value: ParseIr<Value>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<Duration>> for Value

fn from(value: ParseIrOpt<Duration>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<bool>> for Value

fn from(value: ParseIrOpt<bool>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<f32>> for Value

fn from(value: ParseIrOpt<f32>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<f64>> for Value

fn from(value: ParseIrOpt<f64>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<i128>> for Value

fn from(value: ParseIrOpt<i128>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<i16>> for Value

fn from(value: ParseIrOpt<i16>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<i32>> for Value

fn from(value: ParseIrOpt<i32>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<i64>> for Value

fn from(value: ParseIrOpt<i64>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<i8>> for Value

fn from(value: ParseIrOpt<i8>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<isize>> for Value

fn from(value: ParseIrOpt<isize>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<u128>> for Value

fn from(value: ParseIrOpt<u128>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<u16>> for Value

fn from(value: ParseIrOpt<u16>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<u32>> for Value

fn from(value: ParseIrOpt<u32>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<u64>> for Value

fn from(value: ParseIrOpt<u64>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<u8>> for Value

fn from(value: ParseIrOpt<u8>) -> Value

Converts to this type from the input type.

impl From<ParseIrOpt<usize>> for Value

fn from(value: ParseIrOpt<usize>) -> Value

Converts to this type from the input type.

impl From<Rc<[u8]>> for Value

fn from(x: Rc<[u8]>) -> Value

Converts to this type from the input type.

impl From<Rc<str>> for Value

fn from(x: Rc<str>) -> Value

Converts to this type from the input type.

impl<T> From<Serialized<T>> for Value
where T: Serialize,

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

Converts to this type from the input type.

impl From<String> for Value

fn from(x: String) -> Value

Converts to this type from the input type.

impl From<Uuid> for Value

fn from(uuid: Uuid) -> Value

Converts to this type from the input type.

impl From<Value> for Value

fn from(x: Value) -> Value

Converts to this type from the input type.

impl From<ValueIr> for Value

fn from(value: ValueIr) -> Value

Converts to this type from the input type.

impl From<Vec<u8>> for Value

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

Converts to this type from the input type.

impl From<bool> for Value

fn from(x: bool) -> Value

Converts to this type from the input type.

impl From<f32> for Value

fn from(x: f32) -> Value

Converts to this type from the input type.

impl From<f64> for Value

fn from(x: f64) -> Value

Converts to this type from the input type.

impl From<i128> for Value

fn from(x: i128) -> Value

Converts to this type from the input type.

impl From<i16> for Value

fn from(x: i16) -> Value

Converts to this type from the input type.

impl From<i32> for Value

fn from(x: i32) -> Value

Converts to this type from the input type.

impl From<i64> for Value

fn from(x: i64) -> Value

Converts to this type from the input type.

impl From<i8> for Value

fn from(x: i8) -> Value

Converts to this type from the input type.

impl From<isize> for Value

fn from(x: isize) -> Value

Converts to this type from the input type.

impl From<u128> for Value

fn from(x: u128) -> Value

Converts to this type from the input type.

impl From<u16> for Value

fn from(x: u16) -> Value

Converts to this type from the input type.

impl From<u32> for Value

fn from(x: u32) -> Value

Converts to this type from the input type.

impl From<u64> for Value

fn from(x: u64) -> Value

Converts to this type from the input type.

impl From<u8> for Value

fn from(x: u8) -> Value

Converts to this type from the input type.

impl From<usize> for Value

fn from(x: usize) -> Value

Converts to this type from the input type.

impl FromValue for Value

type Intermediate = ValueIr

fn from_value(v: Value) -> Self

Will panic if could not convert v to Self.

fn from_value_opt(v: Value) -> Result<Self, FromValueError>

Will return Err(Error::FromValueError(v)) if could not convert v to Self.

fn get_intermediate(v: Value) -> Result<Self::Intermediate, FromValueError>

Will return Err(Error::FromValueError(v)) if v is not convertible to Self.

impl MySerialize for Value

fn serialize(&self, buf: &mut Vec<u8>)

Serializes self into the buf.

impl PartialEq for Value

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

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

1.0.0 · source§

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 PartialOrd for Value

fn partial_cmp(&self, other: &Value) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more

1.0.0 · source§

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

Tests less than (for self and other) and is used by the < operator. Read more

1.0.0 · source§

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

Tests less than or equal to (for self and other) and is used by the <= operator. Read more

1.0.0 · source§

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

Tests greater than (for self and other) and is used by the > operator. Read more

1.0.0 · source§

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

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more

impl<'a> TryFrom<BinlogValue<'a>> for Value

type Error = BinlogValueToValueError

The type returned in the event of a conversion error.

fn try_from( value: BinlogValue<'a>, ) -> Result<Value, <Value as TryFrom<BinlogValue<'a>>>::Error>

Performs the conversion.

impl TryFrom<Value> for String

type Error = FromValueError

The type returned in the event of a conversion error.

fn try_from(v: Value) -> Result<String, <String as TryFrom<Value>>::Error>

Performs the conversion.

impl StructuralPartialEq for Value

Auto Trait Implementations§

impl Freeze for Value

impl RefUnwindSafe for Value

impl Send for Value

impl Sync for Value

impl Unpin for Value

impl UnwindSafe for Value

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,

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

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dst. Read more

impl<T> Conv for T

fn conv<T>(self) -> T
where Self: Into<T>,

Converts self into T using Into<T>. Read more

impl<T> FmtForward for T

fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.

fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.

fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.

fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.

fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.

fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.

fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.

fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.

fn fmt_list(self) -> FmtList<Self>
where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> FromRow for T
where T: FromValue,

fn from_row_opt(row: Row) -> Result<T, FromRowError>

fn from_row(row: Row) -> Self
where Self: Sized,

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> Pipe for T
where T: ?Sized,

fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
where Self: Sized,

Pipes by value. This is generally the method you want to use. Read more

fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R
where R: 'a,

Borrows self and passes that borrow into the pipe function. Read more

fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R
where R: 'a,

Mutably borrows self and passes that borrow into the pipe function. Read more

fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R
where Self: Borrow<B>, B: 'a + ?Sized, R: 'a,

Borrows self, then passes self.borrow() into the pipe function. Read more

fn pipe_borrow_mut<'a, B, R>( &'a mut self, func: impl FnOnce(&'a mut B) -> R, ) -> R
where Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more

fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
where Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

Borrows self, then passes self.as_ref() into the pipe function.

fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R
where Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.as_mut() into the pipe function.

fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
where Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

Borrows self, then passes self.deref() into the pipe function.

fn pipe_deref_mut<'a, T, R>( &'a mut self, func: impl FnOnce(&'a mut T) -> R, ) -> R
where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.

impl<T> Pointable for T

const ALIGN: usize = _

The alignment of pointer.

type Init = T

The type for initializers.

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

Initializes a with the given initializer. Read more

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

Dereferences the given pointer. Read more

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

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

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

impl<T> Same for T

type Output = T

Should always be Self

impl<T> Tap for T

fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more

fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

Mutable access to a value. Read more

fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Immutable access to the Borrow<B> of a value. Read more

fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Mutable access to the BorrowMut<B> of a value. Read more

fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Immutable access to the AsRef<R> view of a value. Read more

fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more

fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Immutable access to the Deref::Target of a value. Read more

fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Mutable access to the Deref::Target of a value. Read more

fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.

fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

Calls .tap_mut() only in debug builds, and is erased in release builds.

fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.

fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.

fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.

fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.

fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.

fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.

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> ToValue for T
where T: Into<Value> + Clone,

fn to_value(&self) -> Value

impl<T> TryConv for T

fn try_conv<T>(self) -> Result<T, Self::Error>
where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. 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