1 files changed, 209 insertions, 0 deletions
diff --git a/intl/icu_capi/cpp/include/ICU4XIsoDate.hpp b/intl/icu_capi/cpp/include/ICU4XIsoDate.hpp
new file mode 100644
index 0000000000..ba91918f6d
--- /dev/null
+++ b/intl/icu_capi/cpp/include/ICU4XIsoDate.hpp
@@ -0,0 +1,209 @@
+#ifndef ICU4XIsoDate_HPP
+#define ICU4XIsoDate_HPP
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <algorithm>
+#include <memory>
+#include <variant>
+#include <optional>
+#include "diplomat_runtime.hpp"
+
+#include "ICU4XIsoDate.h"
+
+class ICU4XIsoDate;
+#include "ICU4XError.hpp"
+class ICU4XCalendar;
+class ICU4XDate;
+#include "ICU4XIsoWeekday.hpp"
+class ICU4XWeekCalculator;
+struct ICU4XWeekOf;
+
+/**
+ * A destruction policy for using ICU4XIsoDate with std::unique_ptr.
+ */
+struct ICU4XIsoDateDeleter {
+  void operator()(capi::ICU4XIsoDate* l) const noexcept {
+    capi::ICU4XIsoDate_destroy(l);
+  }
+};
+
+/**
+ * An ICU4X Date object capable of containing a ISO-8601 date
+ * 
+ * See the [Rust documentation for `Date`](https://docs.rs/icu/latest/icu/calendar/struct.Date.html) for more information.
+ */
+class ICU4XIsoDate {
+ public:
+
+  /**
+   * Creates a new [`ICU4XIsoDate`] from the specified date and time.
+   * 
+   * See the [Rust documentation for `try_new_iso_date`](https://docs.rs/icu/latest/icu/calendar/struct.Date.html#method.try_new_iso_date) for more information.
+   */
+  static diplomat::result<ICU4XIsoDate, ICU4XError> create(int32_t year, uint8_t month, uint8_t day);
+
+  /**
+   * Creates a new [`ICU4XIsoDate`] representing January 1, 1970.
+   * 
+   * See the [Rust documentation for `unix_epoch`](https://docs.rs/icu/latest/icu/calendar/struct.Date.html#method.unix_epoch) for more information.
+   */
+  static ICU4XIsoDate create_for_unix_epoch();
+
+  /**
+   * Convert this date to one in a different calendar
+   * 
+   * See the [Rust documentation for `to_calendar`](https://docs.rs/icu/latest/icu/calendar/struct.Date.html#method.to_calendar) for more information.
+   */
+  ICU4XDate to_calendar(const ICU4XCalendar& calendar) const;
+
+  /**
+   * See the [Rust documentation for `to_any`](https://docs.rs/icu/latest/icu/calendar/struct.Date.html#method.to_any) for more information.
+   */
+  ICU4XDate to_any() const;
+
+  /**
+   * Returns the 1-indexed day in the month for this date
+   * 
+   * See the [Rust documentation for `day_of_month`](https://docs.rs/icu/latest/icu/calendar/struct.Date.html#method.day_of_month) for more information.
+   */
+  uint32_t day_of_month() const;
+
+  /**
+   * Returns the day in the week for this day
+   * 
+   * See the [Rust documentation for `day_of_week`](https://docs.rs/icu/latest/icu/calendar/struct.Date.html#method.day_of_week) for more information.
+   */
+  ICU4XIsoWeekday day_of_week() const;
+
+  /**
+   * Returns the week number in this month, 1-indexed, based on what
+   * is considered the first day of the week (often a locale preference).
+   * 
+   * `first_weekday` can be obtained via `first_weekday()` on [`ICU4XWeekCalculator`]
+   * 
+   * See the [Rust documentation for `week_of_month`](https://docs.rs/icu/latest/icu/calendar/struct.Date.html#method.week_of_month) for more information.
+   */
+  uint32_t week_of_month(ICU4XIsoWeekday first_weekday) const;
+
+  /**
+   * Returns the week number in this year, using week data
+   * 
+   * See the [Rust documentation for `week_of_year`](https://docs.rs/icu/latest/icu/calendar/struct.Date.html#method.week_of_year) for more information.
+   */
+  diplomat::result<ICU4XWeekOf, ICU4XError> week_of_year(const ICU4XWeekCalculator& calculator) const;
+
+  /**
+   * Returns 1-indexed number of the month of this date in its year
+   * 
+   * See the [Rust documentation for `month`](https://docs.rs/icu/latest/icu/calendar/struct.Date.html#method.month) for more information.
+   */
+  uint32_t month() const;
+
+  /**
+   * Returns the year number for this date
+   * 
+   * See the [Rust documentation for `year`](https://docs.rs/icu/latest/icu/calendar/struct.Date.html#method.year) for more information.
+   */
+  int32_t year() const;
+
+  /**
+   * Returns if the year is a leap year for this date
+   * 
+   * See the [Rust documentation for `is_in_leap_year`](https://docs.rs/icu/latest/icu/calendar/struct.Date.html#method.is_in_leap_year) for more information.
+   */
+  bool is_in_leap_year() const;
+
+  /**
+   * Returns the number of months in the year represented by this date
+   * 
+   * See the [Rust documentation for `months_in_year`](https://docs.rs/icu/latest/icu/calendar/struct.Date.html#method.months_in_year) for more information.
+   */
+  uint8_t months_in_year() const;
+
+  /**
+   * Returns the number of days in the month represented by this date
+   * 
+   * See the [Rust documentation for `days_in_month`](https://docs.rs/icu/latest/icu/calendar/struct.Date.html#method.days_in_month) for more information.
+   */
+  uint8_t days_in_month() const;
+
+  /**
+   * Returns the number of days in the year represented by this date
+   * 
+   * See the [Rust documentation for `days_in_year`](https://docs.rs/icu/latest/icu/calendar/struct.Date.html#method.days_in_year) for more information.
+   */
+  uint16_t days_in_year() const;
+  inline const capi::ICU4XIsoDate* AsFFI() const { return this->inner.get(); }
+  inline capi::ICU4XIsoDate* AsFFIMut() { return this->inner.get(); }
+  inline ICU4XIsoDate(capi::ICU4XIsoDate* i) : inner(i) {}
+  ICU4XIsoDate() = default;
+  ICU4XIsoDate(ICU4XIsoDate&&) noexcept = default;
+  ICU4XIsoDate& operator=(ICU4XIsoDate&& other) noexcept = default;
+ private:
+  std::unique_ptr<capi::ICU4XIsoDate, ICU4XIsoDateDeleter> inner;
+};
+
+#include "ICU4XCalendar.hpp"
+#include "ICU4XDate.hpp"
+#include "ICU4XWeekCalculator.hpp"
+#include "ICU4XWeekOf.hpp"
+
+inline diplomat::result<ICU4XIsoDate, ICU4XError> ICU4XIsoDate::create(int32_t year, uint8_t month, uint8_t day) {
+  auto diplomat_result_raw_out_value = capi::ICU4XIsoDate_create(year, month, day);
+  diplomat::result<ICU4XIsoDate, ICU4XError> diplomat_result_out_value;
+  if (diplomat_result_raw_out_value.is_ok) {
+    diplomat_result_out_value = diplomat::Ok<ICU4XIsoDate>(ICU4XIsoDate(diplomat_result_raw_out_value.ok));
+  } else {
+    diplomat_result_out_value = diplomat::Err<ICU4XError>(static_cast<ICU4XError>(diplomat_result_raw_out_value.err));
+  }
+  return diplomat_result_out_value;
+}
+inline ICU4XIsoDate ICU4XIsoDate::create_for_unix_epoch() {
+  return ICU4XIsoDate(capi::ICU4XIsoDate_create_for_unix_epoch());
+}
+inline ICU4XDate ICU4XIsoDate::to_calendar(const ICU4XCalendar& calendar) const {
+  return ICU4XDate(capi::ICU4XIsoDate_to_calendar(this->inner.get(), calendar.AsFFI()));
+}
+inline ICU4XDate ICU4XIsoDate::to_any() const {
+  return ICU4XDate(capi::ICU4XIsoDate_to_any(this->inner.get()));
+}
+inline uint32_t ICU4XIsoDate::day_of_month() const {
+  return capi::ICU4XIsoDate_day_of_month(this->inner.get());
+}
+inline ICU4XIsoWeekday ICU4XIsoDate::day_of_week() const {
+  return static_cast<ICU4XIsoWeekday>(capi::ICU4XIsoDate_day_of_week(this->inner.get()));
+}
+inline uint32_t ICU4XIsoDate::week_of_month(ICU4XIsoWeekday first_weekday) const {
+  return capi::ICU4XIsoDate_week_of_month(this->inner.get(), static_cast<capi::ICU4XIsoWeekday>(first_weekday));
+}
+inline diplomat::result<ICU4XWeekOf, ICU4XError> ICU4XIsoDate::week_of_year(const ICU4XWeekCalculator& calculator) const {
+  auto diplomat_result_raw_out_value = capi::ICU4XIsoDate_week_of_year(this->inner.get(), calculator.AsFFI());
+  diplomat::result<ICU4XWeekOf, ICU4XError> diplomat_result_out_value;
+  if (diplomat_result_raw_out_value.is_ok) {
+  capi::ICU4XWeekOf diplomat_raw_struct_out_value = diplomat_result_raw_out_value.ok;
+    diplomat_result_out_value = diplomat::Ok<ICU4XWeekOf>(ICU4XWeekOf{ .week = std::move(diplomat_raw_struct_out_value.week), .unit = std::move(static_cast<ICU4XWeekRelativeUnit>(diplomat_raw_struct_out_value.unit)) });
+  } else {
+    diplomat_result_out_value = diplomat::Err<ICU4XError>(static_cast<ICU4XError>(diplomat_result_raw_out_value.err));
+  }
+  return diplomat_result_out_value;
+}
+inline uint32_t ICU4XIsoDate::month() const {
+  return capi::ICU4XIsoDate_month(this->inner.get());
+}
+inline int32_t ICU4XIsoDate::year() const {
+  return capi::ICU4XIsoDate_year(this->inner.get());
+}
+inline bool ICU4XIsoDate::is_in_leap_year() const {
+  return capi::ICU4XIsoDate_is_in_leap_year(this->inner.get());
+}
+inline uint8_t ICU4XIsoDate::months_in_year() const {
+  return capi::ICU4XIsoDate_months_in_year(this->inner.get());
+}
+inline uint8_t ICU4XIsoDate::days_in_month() const {
+  return capi::ICU4XIsoDate_days_in_month(this->inner.get());
+}
+inline uint16_t ICU4XIsoDate::days_in_year() const {
+  return capi::ICU4XIsoDate_days_in_year(this->inner.get());
+}
+#endif