pub enum MetadataValue<'a> {
    Int(i64),
    Uint(u64),
    Double(f64),
    Str(Cow<'a, str>),
    Bool(bool),
}
Expand description

An enum encoding all the possible metadata value types and contents.

Variants§

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Int(i64)

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Uint(u64)

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Double(f64)

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Str(Cow<'a, str>)

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Bool(bool)

Trait Implementations§

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impl<'a, T> From<&'a T> for MetadataValue<'a>
where T: VertexId,

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fn from(value: &'a T) -> MetadataValue<'a>

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

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fn from(value: &'a str) -> MetadataValue<'a>

Converts to this type from the input type.
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impl<'a> From<Cow<'a, str>> for MetadataValue<'a>

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fn from(value: Cow<'a, str>) -> MetadataValue<'a>

Converts to this type from the input type.
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impl<'a> From<String> for MetadataValue<'_>

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fn from(value: String) -> MetadataValue<'static>

Converts to this type from the input type.
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impl From<bool> for MetadataValue<'_>

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fn from(value: bool) -> MetadataValue<'static>

Converts to this type from the input type.
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impl From<f32> for MetadataValue<'_>

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fn from(value: f32) -> MetadataValue<'static>

Converts to this type from the input type.
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impl From<f64> for MetadataValue<'_>

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fn from(value: f64) -> MetadataValue<'static>

Converts to this type from the input type.
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impl From<i16> for MetadataValue<'_>

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fn from(value: i16) -> MetadataValue<'static>

Converts to this type from the input type.
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impl From<i32> for MetadataValue<'_>

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fn from(value: i32) -> MetadataValue<'static>

Converts to this type from the input type.
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impl From<i64> for MetadataValue<'_>

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fn from(value: i64) -> MetadataValue<'static>

Converts to this type from the input type.
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impl From<i8> for MetadataValue<'_>

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fn from(value: i8) -> MetadataValue<'static>

Converts to this type from the input type.
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impl From<u16> for MetadataValue<'_>

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fn from(value: u16) -> MetadataValue<'static>

Converts to this type from the input type.
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impl From<u32> for MetadataValue<'_>

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fn from(value: u32) -> MetadataValue<'static>

Converts to this type from the input type.
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impl From<u64> for MetadataValue<'_>

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fn from(value: u64) -> MetadataValue<'static>

Converts to this type from the input type.
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impl From<u8> for MetadataValue<'_>

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fn from(value: u8) -> MetadataValue<'static>

Converts to this type from the input type.

Auto Trait Implementations§

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impl<'a> Freeze for MetadataValue<'a>

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impl<'a> RefUnwindSafe for MetadataValue<'a>

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impl<'a> Send for MetadataValue<'a>

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impl<'a> Sync for MetadataValue<'a>

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impl<'a> Unpin for MetadataValue<'a>

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impl<'a> UnwindSafe for MetadataValue<'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> Encode<Ambiguous1> for T

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unsafe fn encode( self, _encoder: &mut Encoder<'_>, _offset: usize, _depth: Depth ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. Read more
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impl<T> Encode<Ambiguous2> for T

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unsafe fn encode( self, _encoder: &mut Encoder<'_>, _offset: usize, _depth: Depth ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. 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> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. 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<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