Value

Enum Value 

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pub enum Value {
Show 21 variants Boolean(bool), Integer(i64), Float(f64), Bytes(Vec<u8>), List(Vec<Value>), Map(HashMap<String, Value>), Null, String(String), Node(Node), Relationship(Relationship), Path(Path), UnboundRelationship(UnboundRelationship), Date(NaiveDate), Time(NaiveTime, FixedOffset), DateTimeOffset(DateTime<FixedOffset>), DateTimeZoned(DateTime<Tz>), LocalTime(NaiveTime), LocalDateTime(NaiveDateTime), Duration(Duration), Point2D(Point2D), Point3D(Point3D),
}
Expand description

An enum that can hold values of all Bolt-compatible types.

Conversions are provided for most types, and are usually pretty intuitive (bool to Value::Boolean, i32 to Value::Integer, HashMap to Value::Map, etc.), but some types have no analog in Rust, like a timezone-aware time. For such types, conversions are still provided, but may feel a bit clunky (for example, you can convert a (NaiveTime, impl Offset) tuple into a Value::Time).

Variants§

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Boolean(bool)

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Integer(i64)

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Float(f64)

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Bytes(Vec<u8>)

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List(Vec<Value>)

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Map(HashMap<String, Value>)

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Null

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String(String)

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Node(Node)

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Relationship(Relationship)

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Path(Path)

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UnboundRelationship(UnboundRelationship)

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Date(NaiveDate)

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Time(NaiveTime, FixedOffset)

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DateTimeOffset(DateTime<FixedOffset>)

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DateTimeZoned(DateTime<Tz>)

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LocalTime(NaiveTime)

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LocalDateTime(NaiveDateTime)

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Duration(Duration)

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Point2D(Point2D)

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Point3D(Point3D)

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impl Clone for Value

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fn clone(&self) -> Value

Returns a duplicate 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

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

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fn from(value: &[u8]) -> Self

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

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fn from(value: &str) -> Self

Converts to this type from the input type.
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impl From<(NaiveDateTime, Tz)> for Value

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fn from(pair: (NaiveDateTime, Tz)) -> Self

Converts to this type from the input type.
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impl<O: Offset> From<(NaiveTime, O)> for Value

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fn from(pair: (NaiveTime, O)) -> Self

Converts to this type from the input type.
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impl<T: TimeZone> From<DateTime<T>> for Value

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fn from(value: DateTime<T>) -> Self

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

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fn from(value: Duration) -> Self

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

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fn from(value: Duration) -> Self

Converts to this type from the input type.
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impl<K, V, S> From<HashMap<K, V, S>> for Value
where K: Into<String>, V: Into<Value>, S: BuildHasher,

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fn from(value: HashMap<K, V, S>) -> Self

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

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fn from(value: NaiveDate) -> Self

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

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fn from(value: NaiveDateTime) -> Self

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

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fn from(value: NaiveTime) -> Self

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

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fn from(value: Node) -> Self

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

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fn from(option: Option<T>) -> Self

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

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fn from(value: Path) -> Self

Converts to this type from the input type.
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impl From<Point2D> for Value

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fn from(value: Point2D) -> Self

Converts to this type from the input type.
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impl From<Point3D> for Value

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fn from(value: Point3D) -> Self

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

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fn from(value: Relationship) -> Self

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

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fn from(value: String) -> Self

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

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fn from(value: UnboundRelationship) -> Self

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

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fn from(value: Vec<T>) -> Self

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

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fn from(value: Vec<u8>) -> Self

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

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fn from(value: bool) -> Self

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

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fn from(value: f64) -> Self

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

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fn from(value: i16) -> Self

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

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fn from(value: i32) -> Self

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

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fn from(value: i64) -> Self

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

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fn from(value: i8) -> Self

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 TryFrom<Value> for DateTime<FixedOffset>

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for DateTime<Tz>

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for Duration

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl<V, S> TryFrom<Value> for HashMap<String, V, S>
where V: TryFrom<Value, Error = ConversionError>, S: BuildHasher + Default,

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl<S> TryFrom<Value> for HashMap<String, Value, S>
where S: BuildHasher + Default,

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for NaiveDate

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for NaiveDateTime

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for NaiveTime

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for Node

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for Path

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for Point2D

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for Point3D

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for Relationship

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for String

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for UnboundRelationship

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl<T> TryFrom<Value> for Vec<T>
where T: TryFrom<Value, Error = ConversionError>,

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for Vec<Value>

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for Vec<u8>

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for bool

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for f64

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for i16

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for i32

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for i64

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl TryFrom<Value> for i8

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type Error = ConversionError

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> ConversionResult<Self>

Performs the conversion.
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impl Eq for Value

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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, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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, 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> 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, 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.