1 files changed, 104 insertions, 0 deletions
diff --git a/intl/icu_capi/cpp/include/ICU4XRegionDisplayNames.hpp b/intl/icu_capi/cpp/include/ICU4XRegionDisplayNames.hpp
new file mode 100644
index 0000000000..b8ab50e0c1
--- /dev/null
+++ b/intl/icu_capi/cpp/include/ICU4XRegionDisplayNames.hpp
@@ -0,0 +1,104 @@
+#ifndef ICU4XRegionDisplayNames_HPP
+#define ICU4XRegionDisplayNames_HPP
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <algorithm>
+#include <memory>
+#include <variant>
+#include <optional>
+#include "diplomat_runtime.hpp"
+
+#include "ICU4XRegionDisplayNames.h"
+
+class ICU4XDataProvider;
+class ICU4XLocale;
+class ICU4XRegionDisplayNames;
+#include "ICU4XError.hpp"
+
+/**
+ * A destruction policy for using ICU4XRegionDisplayNames with std::unique_ptr.
+ */
+struct ICU4XRegionDisplayNamesDeleter {
+  void operator()(capi::ICU4XRegionDisplayNames* l) const noexcept {
+    capi::ICU4XRegionDisplayNames_destroy(l);
+  }
+};
+
+/**
+ * See the [Rust documentation for `RegionDisplayNames`](https://docs.rs/icu/latest/icu/displaynames/struct.RegionDisplayNames.html) for more information.
+ */
+class ICU4XRegionDisplayNames {
+ public:
+
+  /**
+   * Creates a new `RegionDisplayNames` from locale data and an options bag.
+   * 
+   * See the [Rust documentation for `try_new`](https://docs.rs/icu/latest/icu/displaynames/struct.RegionDisplayNames.html#method.try_new) for more information.
+   */
+  static diplomat::result<ICU4XRegionDisplayNames, ICU4XError> create(const ICU4XDataProvider& provider, const ICU4XLocale& locale);
+
+  /**
+   * 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.
+   * 
+   * See the [Rust documentation for `of`](https://docs.rs/icu/latest/icu/displaynames/struct.RegionDisplayNames.html#method.of) for more information.
+   */
+  template<typename W> diplomat::result<std::monostate, ICU4XError> of_to_writeable(const std::string_view region, W& write) const;
+
+  /**
+   * 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.
+   * 
+   * See the [Rust documentation for `of`](https://docs.rs/icu/latest/icu/displaynames/struct.RegionDisplayNames.html#method.of) for more information.
+   */
+  diplomat::result<std::string, ICU4XError> of(const std::string_view region) const;
+  inline const capi::ICU4XRegionDisplayNames* AsFFI() const { return this->inner.get(); }
+  inline capi::ICU4XRegionDisplayNames* AsFFIMut() { return this->inner.get(); }
+  inline ICU4XRegionDisplayNames(capi::ICU4XRegionDisplayNames* i) : inner(i) {}
+  ICU4XRegionDisplayNames() = default;
+  ICU4XRegionDisplayNames(ICU4XRegionDisplayNames&&) noexcept = default;
+  ICU4XRegionDisplayNames& operator=(ICU4XRegionDisplayNames&& other) noexcept = default;
+ private:
+  std::unique_ptr<capi::ICU4XRegionDisplayNames, ICU4XRegionDisplayNamesDeleter> inner;
+};
+
+#include "ICU4XDataProvider.hpp"
+#include "ICU4XLocale.hpp"
+
+inline diplomat::result<ICU4XRegionDisplayNames, ICU4XError> ICU4XRegionDisplayNames::create(const ICU4XDataProvider& provider, const ICU4XLocale& locale) {
+  auto diplomat_result_raw_out_value = capi::ICU4XRegionDisplayNames_create(provider.AsFFI(), locale.AsFFI());
+  diplomat::result<ICU4XRegionDisplayNames, ICU4XError> diplomat_result_out_value;
+  if (diplomat_result_raw_out_value.is_ok) {
+    diplomat_result_out_value = diplomat::Ok<ICU4XRegionDisplayNames>(ICU4XRegionDisplayNames(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;
+}
+template<typename W> inline diplomat::result<std::monostate, ICU4XError> ICU4XRegionDisplayNames::of_to_writeable(const std::string_view region, W& write) const {
+  capi::DiplomatWriteable write_writer = diplomat::WriteableTrait<W>::Construct(write);
+  auto diplomat_result_raw_out_value = capi::ICU4XRegionDisplayNames_of(this->inner.get(), region.data(), region.size(), &write_writer);
+  diplomat::result<std::monostate, ICU4XError> diplomat_result_out_value;
+  if (diplomat_result_raw_out_value.is_ok) {
+    diplomat_result_out_value = diplomat::Ok(std::monostate());
+  } else {
+    diplomat_result_out_value = diplomat::Err<ICU4XError>(static_cast<ICU4XError>(diplomat_result_raw_out_value.err));
+  }
+  return diplomat_result_out_value;
+}
+inline diplomat::result<std::string, ICU4XError> ICU4XRegionDisplayNames::of(const std::string_view region) const {
+  std::string diplomat_writeable_string;
+  capi::DiplomatWriteable diplomat_writeable_out = diplomat::WriteableFromString(diplomat_writeable_string);
+  auto diplomat_result_raw_out_value = capi::ICU4XRegionDisplayNames_of(this->inner.get(), region.data(), region.size(), &diplomat_writeable_out);
+  diplomat::result<std::monostate, ICU4XError> diplomat_result_out_value;
+  if (diplomat_result_raw_out_value.is_ok) {
+    diplomat_result_out_value = diplomat::Ok(std::monostate());
+  } else {
+    diplomat_result_out_value = diplomat::Err<ICU4XError>(static_cast<ICU4XError>(diplomat_result_raw_out_value.err));
+  }
+  return diplomat_result_out_value.replace_ok(std::move(diplomat_writeable_string));
+}
+#endif