Struct icu_provider::DataMarkerInfo

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#[non_exhaustive]
pub struct DataMarkerInfo { pub path: DataMarkerPath, pub attributes_domain: &'static str, pub is_singleton: bool, pub fallback_config: LocaleFallbackConfig, }
Expand description

Used for loading data from a dynamic ICU4X data provider.

A data marker is tightly coupled with the code that uses it to load data at runtime. Executables can be searched for DataMarkerInfo instances to produce optimized data files. Therefore, users should not generally create DataMarkerInfo instances; they should instead use the ones exported by a component.

Fields (Non-exhaustive)§

This struct is marked as non-exhaustive
Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.
§path: DataMarkerPath

The human-readable path string ends with @ followed by one or more digits (the version number). Paths do not contain characters other than ASCII letters and digits, _, /.

Useful for reading and writing data to a file system.

§attributes_domain: &'static str

TODO

§is_singleton: bool

TODO

§fallback_config: LocaleFallbackConfig

TODO

Implementations§

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impl DataMarkerInfo

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pub const fn from_path(path: DataMarkerPath) -> Self

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pub fn match_marker(self, marker: Self) -> Result<(), DataError>

Returns Ok if this data marker matches the argument, or the appropriate error.

Convenience method for data providers that support a single DataMarkerInfo.

§Examples
use icu_provider::prelude::*;
use icu_provider::hello_world::*;

assert!(matches!(HelloWorldV1Marker::INFO.match_marker(HelloWorldV1Marker::INFO), Ok(())));
assert!(matches!(
    HelloWorldV1Marker::INFO.match_marker(DummyMarker::INFO),
    Err(DataError {
        kind: DataErrorKind::MarkerNotFound,
        ..
    })
));

// The error context contains the argument:
assert_eq!(HelloWorldV1Marker::INFO.match_marker(DummyMarker::INFO).unwrap_err().marker_path, Some(DummyMarker::INFO.path));

Trait Implementations§

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impl Clone for DataMarkerInfo

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fn clone(&self) -> DataMarkerInfo

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
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impl Debug for DataMarkerInfo

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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 Hash for DataMarkerInfo

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for DataMarkerInfo

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fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl PartialEq for DataMarkerInfo

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fn eq(&self, other: &DataMarkerInfo) -> 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 PartialOrd for DataMarkerInfo

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fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Copy for DataMarkerInfo

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impl Eq for DataMarkerInfo

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impl StructuralPartialEq for DataMarkerInfo

Auto Trait 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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fn borrow_mut(&mut self) -> &mut T

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impl<T> CloneToUninit for T
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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬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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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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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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Performs the conversion.
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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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Performs the conversion.
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impl<T> ErasedDestructor for T
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