intl/icu_capi/src/metazone_calculator.rs

   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 pub mod ffi {
   7     use crate::errors::ffi::ICU4XError;
   8     use crate::provider::ffi::ICU4XDataProvider;
   9     use alloc::boxed::Box;
  10     use icu_timezone::MetazoneCalculator;
  11
  12     /// An object capable of computing the metazone from a timezone.
  13     ///
  14     /// This can be used via `maybe_calculate_metazone()` on [`ICU4XCustomTimeZone`].
  15     ///
  16     /// [`ICU4XCustomTimeZone`]: crate::timezone::ffi::ICU4XCustomTimeZone
  17     #[diplomat::opaque]
  18     #[diplomat::rust_link(icu::timezone::MetazoneCalculator, Struct)]
  19     pub struct ICU4XMetazoneCalculator(pub MetazoneCalculator);
  20
  21     impl ICU4XMetazoneCalculator {
  22         #[diplomat::rust_link(icu::timezone::MetazoneCalculator::new, FnInStruct)]
  23         pub fn create(
  24             provider: &ICU4XDataProvider,
  25         ) -> Result<Box<ICU4XMetazoneCalculator>, ICU4XError> {
  26             Ok(Box::new(ICU4XMetazoneCalculator(call_constructor!(
  27                 MetazoneCalculator::new [r => Ok(r)],
  28                 MetazoneCalculator::try_new_with_any_provider,
  29                 MetazoneCalculator::try_new_with_buffer_provider,
  30                 provider,
  31             )?)))
  32         }
  33     }
  34 }