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Zstd

meathook::encode

Struct Zstd 

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pub struct Zstd<const LEVEL: u8 = 1>;
Expand description

Type-level policy for zstd-compressed parquet output.

LEVEL defaults to 1. Only levels 1..=22 implement ParquetCompression, so an encoder with an invalid level cannot be constructed.

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use meathook::{ParquetEncoder, Zstd};

let encoder = ParquetEncoder::<Zstd<23>>::new();

Trait Implementations§

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impl<const LEVEL: u8> Clone for Zstd<LEVEL>

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fn clone(&self) -> Zstd<LEVEL>

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl<const LEVEL: u8> Copy for Zstd<LEVEL>

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impl<const LEVEL: u8> Debug for Zstd<LEVEL>

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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<const LEVEL: u8> Default for Zstd<LEVEL>

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fn default() -> Zstd<LEVEL>

Returns the “default value” for a type. Read more
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impl ParquetCompression for Zstd<1>

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impl ParquetCompression for Zstd<2>

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impl ParquetCompression for Zstd<3>

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impl ParquetCompression for Zstd<4>

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impl ParquetCompression for Zstd<5>

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impl ParquetCompression for Zstd<6>

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impl ParquetCompression for Zstd<7>

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impl ParquetCompression for Zstd<8>

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impl ParquetCompression for Zstd<9>

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impl ParquetCompression for Zstd<10>

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impl ParquetCompression for Zstd<11>

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impl ParquetCompression for Zstd<12>

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impl ParquetCompression for Zstd<13>

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impl ParquetCompression for Zstd<14>

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impl ParquetCompression for Zstd<15>

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impl ParquetCompression for Zstd<16>

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impl ParquetCompression for Zstd<17>

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impl ParquetCompression for Zstd<18>

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impl ParquetCompression for Zstd<19>

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impl ParquetCompression for Zstd<20>

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impl ParquetCompression for Zstd<21>

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impl ParquetCompression for Zstd<22>

Auto Trait Implementations§

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impl<const LEVEL: u8> Freeze for Zstd<LEVEL>

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impl<const LEVEL: u8> RefUnwindSafe for Zstd<LEVEL>

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impl<const LEVEL: u8> Send for Zstd<LEVEL>

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impl<const LEVEL: u8> Sync for Zstd<LEVEL>

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impl<const LEVEL: u8> Unpin for Zstd<LEVEL>

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impl<const LEVEL: u8> UnsafeUnpin for Zstd<LEVEL>

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impl<const LEVEL: u8> UnwindSafe for Zstd<LEVEL>

Blanket Implementations§

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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> 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> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more
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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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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.
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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