Enum ExtraFlags

#[repr(u8)]
pub enum ExtraFlags {
    Default = 0,
    MaximumCompression = 2,
    FastestCompression = 4,
}

Valid values for the extra flag in the gzip specification.

This is a field to be used by the compression methods. For deflate, which is the only specified compression method, this is a value indicating the level of compression of the contained compressed data. This value does not have to correspond to the actual compression level of the contained data, it’s only a hint that the the encoder may set.

Variants

Default = 0

MaximumCompression = 2

FastestCompression = 4

Implementations

impl ExtraFlags

pub fn from_u8(value: u8) -> ExtraFlags

Get the corresponding ExtraFlags value from a raw byte.

Returns ExtraFlags::Default (defined as 0 by the gzip specification) for values other than 2 and 4.

pub const fn as_u8(&self) -> u8

Get the raw byte value of this ExtraFlags variant.

Trait Implementations

impl Clone for ExtraFlags

fn clone(&self) -> ExtraFlags

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExtraFlags

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

Formats the value using the given formatter.

impl Default for ExtraFlags

fn default() -> ExtraFlags

Returns the “default value” for a type.

impl Display for ExtraFlags

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

Formats the value using the given formatter.

impl Hash for ExtraFlags

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ExtraFlags

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ExtraFlags

impl Eq for ExtraFlags

impl StructuralPartialEq for ExtraFlags