1 files changed, 64 insertions, 0 deletions
diff --git a/intl/icu_capi/cpp/include/ICU4XLocaleFallbackIterator.hpp b/intl/icu_capi/cpp/include/ICU4XLocaleFallbackIterator.hpp
new file mode 100644
index 0000000000..93c47eb01e
--- /dev/null
+++ b/intl/icu_capi/cpp/include/ICU4XLocaleFallbackIterator.hpp
@@ -0,0 +1,64 @@
+#ifndef ICU4XLocaleFallbackIterator_HPP
+#define ICU4XLocaleFallbackIterator_HPP
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <algorithm>
+#include <memory>
+#include <variant>
+#include <optional>
+#include "diplomat_runtime.hpp"
+
+#include "ICU4XLocaleFallbackIterator.h"
+
+class ICU4XLocale;
+
+/**
+ * A destruction policy for using ICU4XLocaleFallbackIterator with std::unique_ptr.
+ */
+struct ICU4XLocaleFallbackIteratorDeleter {
+  void operator()(capi::ICU4XLocaleFallbackIterator* l) const noexcept {
+    capi::ICU4XLocaleFallbackIterator_destroy(l);
+  }
+};
+
+/**
+ * An iterator over the locale under fallback.
+ * 
+ * See the [Rust documentation for `LocaleFallbackIterator`](https://docs.rs/icu/latest/icu/locid_transform/fallback/struct.LocaleFallbackIterator.html) for more information.
+ */
+class ICU4XLocaleFallbackIterator {
+ public:
+
+  /**
+   * Gets a snapshot of the current state of the locale.
+   * 
+   * See the [Rust documentation for `get`](https://docs.rs/icu/latest/icu/locid_transform/fallback/struct.LocaleFallbackIterator.html#method.get) for more information.
+   */
+  ICU4XLocale get() const;
+
+  /**
+   * Performs one step of the fallback algorithm, mutating the locale.
+   * 
+   * See the [Rust documentation for `step`](https://docs.rs/icu/latest/icu/locid_transform/fallback/struct.LocaleFallbackIterator.html#method.step) for more information.
+   */
+  void step();
+  inline const capi::ICU4XLocaleFallbackIterator* AsFFI() const { return this->inner.get(); }
+  inline capi::ICU4XLocaleFallbackIterator* AsFFIMut() { return this->inner.get(); }
+  inline explicit ICU4XLocaleFallbackIterator(capi::ICU4XLocaleFallbackIterator* i) : inner(i) {}
+  ICU4XLocaleFallbackIterator() = default;
+  ICU4XLocaleFallbackIterator(ICU4XLocaleFallbackIterator&&) noexcept = default;
+  ICU4XLocaleFallbackIterator& operator=(ICU4XLocaleFallbackIterator&& other) noexcept = default;
+ private:
+  std::unique_ptr<capi::ICU4XLocaleFallbackIterator, ICU4XLocaleFallbackIteratorDeleter> inner;
+};
+
+#include "ICU4XLocale.hpp"
+
+inline ICU4XLocale ICU4XLocaleFallbackIterator::get() const {
+  return ICU4XLocale(capi::ICU4XLocaleFallbackIterator_get(this->inner.get()));
+}
+inline void ICU4XLocaleFallbackIterator::step() {
+  capi::ICU4XLocaleFallbackIterator_step(this->inner.get());
+}
+#endif