polars_arrow_format::ipc

Struct KeyValueBuilder

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pub struct KeyValueBuilder<State>(/* private fields */);
Expand description

Builder for serializing an instance of the KeyValue type.

Can be created using the KeyValue::builder method.

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impl KeyValueBuilder<()>

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pub fn key<T0>(self, value: T0) -> KeyValueBuilder<(T0,)>
where T0: WriteAsOptional<Offset<str>>,

Setter for the key field.

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pub fn key_as_null(self) -> KeyValueBuilder<((),)>

Sets the key field to null.

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impl<T0> KeyValueBuilder<(T0,)>

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pub fn value<T1>(self, value: T1) -> KeyValueBuilder<(T0, T1)>
where T1: WriteAsOptional<Offset<str>>,

Setter for the value field.

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pub fn value_as_null(self) -> KeyValueBuilder<(T0, ())>

Sets the value field to null.

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impl<T0, T1> KeyValueBuilder<(T0, T1)>

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pub fn finish(self, builder: &mut Builder) -> Offset<KeyValue>
where Self: WriteAsOffset<KeyValue>,

Finish writing the builder to get an Offset to a serialized KeyValue.

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Auto Trait Implementations§

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impl<State> Freeze for KeyValueBuilder<State>
where State: Freeze,

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impl<State> RefUnwindSafe for KeyValueBuilder<State>
where State: RefUnwindSafe,

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impl<State> Send for KeyValueBuilder<State>
where State: Send,

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impl<State> Sync for KeyValueBuilder<State>
where State: Sync,

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impl<State> Unpin for KeyValueBuilder<State>
where State: Unpin,

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impl<State> UnwindSafe for KeyValueBuilder<State>
where State: UnwindSafe,

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, 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<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.