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// This file is part of ICU4X. For terms of use, please see the file
// called LICENSE at the top level of the ICU4X source tree
// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
#[diplomat::bridge]
pub mod ffi {
use crate::errors::ffi::ICU4XError;
use crate::locale::ffi::ICU4XLocale;
use crate::provider::ffi::ICU4XDataProvider;
use alloc::boxed::Box;
use diplomat_runtime::DiplomatWriteable;
#[allow(unused_imports)] // feature-specific
use icu_displaynames::{DisplayNamesOptions, Fallback, LanguageDisplay};
use icu_displaynames::{LocaleDisplayNamesFormatter, RegionDisplayNames};
use icu_locid::subtags::Region;
use writeable::Writeable;
// FFI version of `LocaleDisplayNamesFormatter`.
#[diplomat::opaque]
#[diplomat::rust_link(icu::displaynames::LocaleDisplayNamesFormatter, Struct)]
pub struct ICU4XLocaleDisplayNamesFormatter(pub LocaleDisplayNamesFormatter);
// FFI version of `RegionDisplayNames`.
#[diplomat::opaque]
#[diplomat::rust_link(icu::displaynames::RegionDisplayNames, Struct)]
pub struct ICU4XRegionDisplayNames(pub RegionDisplayNames);
// FFI version of `DisplayNamesOptions`.
#[diplomat::rust_link(icu::displaynames::options::DisplayNamesOptions, Struct)]
pub struct ICU4XDisplayNamesOptionsV1 {
/// The optional formatting style to use for display name.
pub style: ICU4XDisplayNamesStyle,
/// The fallback return when the system does not have the
/// requested display name, defaults to "code".
pub fallback: ICU4XDisplayNamesFallback,
/// The language display kind, defaults to "dialect".
pub language_display: ICU4XLanguageDisplay,
}
// FFI version of `Style` option for the display names.
#[diplomat::rust_link(icu::displaynames::options::Style, Enum)]
pub enum ICU4XDisplayNamesStyle {
Auto,
Narrow,
Short,
Long,
Menu,
}
// FFI version of `Fallback` option for the display names.
#[diplomat::rust_link(icu::displaynames::options::Fallback, Enum)]
#[diplomat::enum_convert(Fallback, needs_wildcard)]
pub enum ICU4XDisplayNamesFallback {
Code,
None,
}
// FFI version of `LanguageDisplay`.
#[diplomat::rust_link(icu::displaynames::options::LanguageDisplay, Enum)]
#[diplomat::enum_convert(LanguageDisplay, needs_wildcard)]
pub enum ICU4XLanguageDisplay {
Dialect,
Standard,
}
impl ICU4XLocaleDisplayNamesFormatter {
/// Creates a new `LocaleDisplayNamesFormatter` from locale data and an options bag.
#[diplomat::rust_link(icu::displaynames::LocaleDisplayNamesFormatter::try_new, FnInStruct)]
pub fn create(
provider: &ICU4XDataProvider,
locale: &ICU4XLocale,
options: ICU4XDisplayNamesOptionsV1,
) -> Result<Box<ICU4XLocaleDisplayNamesFormatter>, ICU4XError> {
let locale = locale.to_datalocale();
let options = DisplayNamesOptions::from(options);
Ok(Box::new(ICU4XLocaleDisplayNamesFormatter(
call_constructor!(
LocaleDisplayNamesFormatter::try_new,
LocaleDisplayNamesFormatter::try_new_with_any_provider,
LocaleDisplayNamesFormatter::try_new_with_buffer_provider,
provider,
&locale,
options,
)?,
)))
}
/// Returns the locale-specific display name of a locale.
#[diplomat::rust_link(icu::displaynames::LocaleDisplayNamesFormatter::of, FnInStruct)]
pub fn of(
&self,
locale: &ICU4XLocale,
write: &mut DiplomatWriteable,
) -> Result<(), ICU4XError> {
self.0.of(&locale.0).write_to(write)?;
Ok(())
}
}
impl ICU4XRegionDisplayNames {
/// Creates a new `RegionDisplayNames` from locale data and an options bag.
#[diplomat::rust_link(icu::displaynames::RegionDisplayNames::try_new, FnInStruct)]
pub fn create(
provider: &ICU4XDataProvider,
locale: &ICU4XLocale,
) -> Result<Box<ICU4XRegionDisplayNames>, ICU4XError> {
let locale = locale.to_datalocale();
Ok(Box::new(ICU4XRegionDisplayNames(call_constructor!(
RegionDisplayNames::try_new,
RegionDisplayNames::try_new_with_any_provider,
RegionDisplayNames::try_new_with_buffer_provider,
provider,
&locale,
Default::default()
)?)))
}
/// Returns the locale specific display name of a region.
/// Note that the funtion returns an empty string in case the display name for a given
/// region code is not found.
#[diplomat::rust_link(icu::displaynames::RegionDisplayNames::of, FnInStruct)]
pub fn of(&self, region: &str, write: &mut DiplomatWriteable) -> Result<(), ICU4XError> {
self.0
.of(region.parse::<Region>()?)
.unwrap_or("")
.write_to(write)?;
Ok(())
}
}
}
#[allow(unused_imports)] // feature-specific
use icu_displaynames::{DisplayNamesOptions, Fallback, LanguageDisplay, Style};
impl From<ffi::ICU4XDisplayNamesStyle> for Option<Style> {
fn from(style: ffi::ICU4XDisplayNamesStyle) -> Option<Style> {
match style {
ffi::ICU4XDisplayNamesStyle::Auto => None,
ffi::ICU4XDisplayNamesStyle::Narrow => Some(Style::Narrow),
ffi::ICU4XDisplayNamesStyle::Short => Some(Style::Short),
ffi::ICU4XDisplayNamesStyle::Long => Some(Style::Long),
ffi::ICU4XDisplayNamesStyle::Menu => Some(Style::Menu),
}
}
}
impl From<ffi::ICU4XDisplayNamesOptionsV1> for DisplayNamesOptions {
fn from(other: ffi::ICU4XDisplayNamesOptionsV1) -> DisplayNamesOptions {
let mut options = DisplayNamesOptions::default();
options.style = other.style.into();
options.fallback = other.fallback.into();
options.language_display = other.language_display.into();
options
}
}
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