Struct Compression

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pub struct Compression(/* private fields */);
Expand description

When compressing data, the compression level can be specified by a value in this enum.

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impl Compression

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pub const fn new(level: u32) -> Compression

Create a new compression spec with a specific numeric level in the range 1..=9.

§Panics

A level outside of the 1..=9 range will throw a panic. Use Self::try_new to gracefully handle invalid levels (e.g. from user input).

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pub const fn try_new(level: u32) -> Option<Compression>

Create a new compression spec with a specific numeric level in the range 1..=9.

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pub fn none() -> Compression

👎Deprecated since 0.5.1: libbz2 does not support compression level 0

Do not compress.

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pub const fn fast() -> Compression

Optimize for the best speed of encoding.

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pub const fn best() -> Compression

Optimize for smallest output size.

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pub const fn level(&self) -> u32

Return the compression level as an integer.

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impl Clone for Compression

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fn clone(&self) -> Compression

Returns a copy 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 Compression

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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 Default for Compression

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fn default() -> Compression

Choose the default compression, a balance between speed and size.

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impl PartialEq for Compression

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fn eq(&self, other: &Compression) -> 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 Copy for Compression

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impl Eq for Compression

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impl StructuralPartialEq for Compression

Auto Trait Implementations§

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, dst: *mut u8)

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