locale_directionality.rs (4573B)
1 // This file is part of ICU4X. For terms of use, please see the file 2 // called LICENSE at the top level of the ICU4X source tree 3 // (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ). 4 5 #[diplomat::bridge] 6 #[diplomat::abi_rename = "icu4x_{0}_mv1"] 7 #[diplomat::attr(auto, namespace = "icu4x")] 8 pub mod ffi { 9 use alloc::boxed::Box; 10 11 #[cfg(feature = "buffer_provider")] 12 use crate::unstable::errors::ffi::DataError; 13 #[cfg(feature = "buffer_provider")] 14 use crate::unstable::provider::ffi::DataProvider; 15 16 use crate::unstable::locale_core::ffi::Locale; 17 18 #[diplomat::rust_link(icu::locale::Direction, Enum)] 19 pub enum LocaleDirection { 20 LeftToRight, 21 RightToLeft, 22 Unknown, 23 } 24 25 #[diplomat::opaque] 26 #[diplomat::rust_link(icu::locale::LocaleDirectionality, Struct)] 27 pub struct LocaleDirectionality(pub icu_locale::LocaleDirectionality); 28 29 impl LocaleDirectionality { 30 /// Construct a new LocaleDirectionality instance using compiled data. 31 #[diplomat::rust_link(icu::locale::LocaleDirectionality::new_common, FnInStruct)] 32 #[diplomat::attr(supports = constructors, constructor)] 33 #[cfg(feature = "compiled_data")] 34 pub fn create_common() -> Box<LocaleDirectionality> { 35 Box::new(LocaleDirectionality( 36 icu_locale::LocaleDirectionality::new_common(), 37 )) 38 } 39 40 /// Construct a new LocaleDirectionality instance using a particular data source. 41 #[diplomat::rust_link(icu::locale::LocaleDirectionality::new_common, FnInStruct)] 42 #[diplomat::attr(all(supports = fallible_constructors, supports = named_constructors), named_constructor = "with_provider")] 43 #[cfg(feature = "buffer_provider")] 44 pub fn create_common_with_provider( 45 provider: &DataProvider, 46 ) -> Result<Box<LocaleDirectionality>, DataError> { 47 Ok(Box::new(LocaleDirectionality( 48 icu_locale::LocaleDirectionality::try_new_common_with_buffer_provider( 49 provider.get()?, 50 )?, 51 ))) 52 } 53 /// Construct a new LocaleDirectionality instance using compiled data. 54 #[diplomat::rust_link(icu::locale::LocaleDirectionality::new_extended, FnInStruct)] 55 #[diplomat::rust_link( 56 icu::locale::LocaleDirectionality::new_with_expander, 57 FnInStruct, 58 hidden 59 )] 60 #[diplomat::attr(auto, named_constructor = "extended")] 61 #[cfg(feature = "compiled_data")] 62 pub fn create_extended() -> Box<LocaleDirectionality> { 63 Box::new(LocaleDirectionality( 64 icu_locale::LocaleDirectionality::new_extended(), 65 )) 66 } 67 68 /// Construct a new LocaleDirectionality instance using a particular data source. 69 #[diplomat::rust_link(icu::locale::LocaleDirectionality::new_extended, FnInStruct)] 70 #[diplomat::rust_link( 71 icu::locale::LocaleDirectionality::new_with_expander, 72 FnInStruct, 73 hidden 74 )] 75 #[diplomat::attr(all(supports = fallible_constructors, supports = named_constructors), named_constructor = "extended_with_provider")] 76 #[cfg(feature = "buffer_provider")] 77 pub fn create_extended_with_provider( 78 provider: &DataProvider, 79 ) -> Result<Box<LocaleDirectionality>, DataError> { 80 Ok(Box::new(LocaleDirectionality( 81 icu_locale::LocaleDirectionality::try_new_extended_with_buffer_provider( 82 provider.get()?, 83 )?, 84 ))) 85 } 86 #[diplomat::rust_link(icu::locale::LocaleDirectionality::get, FnInStruct)] 87 #[diplomat::attr(auto, indexer)] 88 pub fn get(&self, locale: &Locale) -> LocaleDirection { 89 match self.0.get(&locale.0.id) { 90 Some(icu_locale::Direction::LeftToRight) => LocaleDirection::LeftToRight, 91 Some(icu_locale::Direction::RightToLeft) => LocaleDirection::RightToLeft, 92 _ => LocaleDirection::Unknown, 93 } 94 } 95 96 #[diplomat::rust_link(icu::locale::LocaleDirectionality::is_left_to_right, FnInStruct)] 97 pub fn is_left_to_right(&self, locale: &Locale) -> bool { 98 self.0.is_left_to_right(&locale.0.id) 99 } 100 101 #[diplomat::rust_link(icu::locale::LocaleDirectionality::is_right_to_left, FnInStruct)] 102 pub fn is_right_to_left(&self, locale: &Locale) -> bool { 103 self.0.is_right_to_left(&locale.0.id) 104 } 105 } 106 }