Struct FallbackKey 

pub struct FallbackKey { /* private fields */ }

Describes a selector for fallback families.

This is a Script and optionally, a locale, represented as a &'static str.

It can be constructed directly via FallbackKey::new or any of a variety of From implementations to improve the ease of use.

Implementations

impl FallbackKey

pub fn new( script: impl Into<Script>, locale: Option<&LanguageIdentifier>, ) -> Self

Creates a new fallback key from the given script and locale.

pub fn script(&self) -> Script

Returns the requested script.

pub fn locale(&self) -> Option<&'static str>

Returns a normalized version of the requested locale.

pub fn is_default(&self) -> bool

Returns true if the requested locale is considered the “default” language/region for the requested script.

Always returns true when locale returns None.

pub fn is_tracked(&self) -> bool

Returns true if the requested script and locale pair are actually tracked for fallback.

Trait Implementations

impl Clone for FallbackKey

fn clone(&self) -> FallbackKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FallbackKey

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

Formats the value using the given formatter.

impl<S> From<(S, &LanguageIdentifier)> for FallbackKey

where S: Into<Script>,

fn from(value: (S, &LanguageIdentifier)) -> Self

Converts to this type from the input type.

impl<S> From<(S, &str)> for FallbackKey

where S: Into<Script>,

fn from(value: (S, &str)) -> Self

Converts to this type from the input type.

impl<S> From<S> for FallbackKey

where S: Into<Script>,

fn from(value: S) -> Self

Converts to this type from the input type.

impl Hash for FallbackKey

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 FallbackKey

fn eq(&self, other: &FallbackKey) -> 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 FallbackKey

impl Eq for FallbackKey

impl StructuralPartialEq for FallbackKey