Enum CompressionMethod 

#[non_exhaustive]
pub enum CompressionMethod {
    Stored,
    Deflated,
    Deflate64,
    Unsupported(u16),
}

Identifies the storage format used to compress a file within a ZIP archive.

Each file’s compression method is stored alongside it, allowing the contents to be read without context.

When creating ZIP files, you may choose the method to use with crate::write::FileOptions::compression_method

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Stored

Store the file as is

Deflated

Compress the file using Deflate

Deflate64

Compress the file using Deflate64. Decoding deflate64 is supported but encoding deflate64 is not supported.

Unsupported(u16)

👎Deprecated since 0.5.7:

use the constants instead

Unsupported compression method

Implementations

impl CompressionMethod

All compression methods defined for the ZIP format

pub const STORE: Self = CompressionMethod::Stored

pub const SHRINK: Self

Legacy compression method (enable feature legacy-zip to get support)

pub const REDUCE_1: Self

Legacy compression method (enable feature legacy-zip to get support)

pub const REDUCE_2: Self

Legacy compression method (enable feature legacy-zip to get support)

pub const REDUCE_3: Self

Legacy compression method (enable feature legacy-zip to get support)

pub const REDUCE_4: Self

Legacy compression method (enable feature legacy-zip to get support)

pub const IMPLODE: Self

Legacy compression method (enable feature legacy-zip to get support)

pub const DEFLATE: Self = CompressionMethod::Deflated

pub const DEFLATE64: Self = CompressionMethod::Deflate64

pub const PKWARE_IMPLODE: Self

pub const BZIP2: Self

pub const LZMA: Self

pub const IBM_ZOS_CMPSC: Self

pub const IBM_TERSE: Self

pub const ZSTD_DEPRECATED: Self

pub const ZSTD: Self

pub const MP3: Self

pub const XZ: Self

pub const JPEG: Self

pub const WAVPACK: Self

pub const PPMD: Self

pub const AES: Self

pub const DEFAULT: Self = CompressionMethod::Deflated

impl CompressionMethod

pub const fn name_from_u16(val: u16) -> &'static str

Convert the compression method (as u16) to a name

pub const fn from_u16(val: u16) -> CompressionMethod

👎Deprecated since 0.5.7:

use a constant to construct a compression method

Converts a u16 to its corresponding CompressionMethod

pub const fn to_u16(self) -> u16

👎Deprecated since 0.5.7:

to match on other compression methods, use a constant

Converts a CompressionMethod to a u16

pub const fn into_compression(self) -> Compression

Transform to Compression

Trait Implementations

impl Clone for CompressionMethod

fn clone(&self) -> CompressionMethod

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CompressionMethod

impl Debug for CompressionMethod

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CompressionMethod

fn default() -> Self

Returns the “default value” for a type.

impl Display for CompressionMethod

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for CompressionMethod

impl From<CompressionMethod> for Compression

fn from(value: CompressionMethod) -> Self

Converts to this type from the input type.

impl PartialEq for CompressionMethod

fn eq(&self, other: &CompressionMethod) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for CompressionMethod