1 files changed, 74 insertions, 0 deletions
diff --git a/intl/icu_capi/cpp/include/ICU4XReorderedIndexMap.hpp b/intl/icu_capi/cpp/include/ICU4XReorderedIndexMap.hpp
new file mode 100644
index 0000000000..1fe4270baa
--- /dev/null
+++ b/intl/icu_capi/cpp/include/ICU4XReorderedIndexMap.hpp
@@ -0,0 +1,74 @@
+#ifndef ICU4XReorderedIndexMap_HPP
+#define ICU4XReorderedIndexMap_HPP
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <algorithm>
+#include <memory>
+#include <variant>
+#include <optional>
+#include "diplomat_runtime.hpp"
+
+#include "ICU4XReorderedIndexMap.h"
+
+
+/**
+ * A destruction policy for using ICU4XReorderedIndexMap with std::unique_ptr.
+ */
+struct ICU4XReorderedIndexMapDeleter {
+  void operator()(capi::ICU4XReorderedIndexMap* l) const noexcept {
+    capi::ICU4XReorderedIndexMap_destroy(l);
+  }
+};
+
+/**
+ * Thin wrapper around a vector that maps visual indices to source indices
+ * 
+ * `map[visualIndex] = sourceIndex`
+ * 
+ * Produced by `reorder_visual()` on [`ICU4XBidi`].
+ */
+class ICU4XReorderedIndexMap {
+ public:
+
+  /**
+   * Get this as a slice/array of indices
+   * 
+   * Lifetimes: `this` must live at least as long as the output.
+   */
+  const diplomat::span<const size_t> as_slice() const;
+
+  /**
+   * The length of this map
+   */
+  size_t len() const;
+
+  /**
+   * Get element at `index`. Returns 0 when out of bounds
+   * (note that 0 is also a valid in-bounds value, please use `len()`
+   * to avoid out-of-bounds)
+   */
+  size_t get(size_t index) const;
+  inline const capi::ICU4XReorderedIndexMap* AsFFI() const { return this->inner.get(); }
+  inline capi::ICU4XReorderedIndexMap* AsFFIMut() { return this->inner.get(); }
+  inline ICU4XReorderedIndexMap(capi::ICU4XReorderedIndexMap* i) : inner(i) {}
+  ICU4XReorderedIndexMap() = default;
+  ICU4XReorderedIndexMap(ICU4XReorderedIndexMap&&) noexcept = default;
+  ICU4XReorderedIndexMap& operator=(ICU4XReorderedIndexMap&& other) noexcept = default;
+ private:
+  std::unique_ptr<capi::ICU4XReorderedIndexMap, ICU4XReorderedIndexMapDeleter> inner;
+};
+
+
+inline const diplomat::span<const size_t> ICU4XReorderedIndexMap::as_slice() const {
+  capi::DiplomatUsizeView diplomat_slice_raw_out_value = capi::ICU4XReorderedIndexMap_as_slice(this->inner.get());
+  diplomat::span<const size_t> slice(diplomat_slice_raw_out_value.data, diplomat_slice_raw_out_value.len);
+  return slice;
+}
+inline size_t ICU4XReorderedIndexMap::len() const {
+  return capi::ICU4XReorderedIndexMap_len(this->inner.get());
+}
+inline size_t ICU4XReorderedIndexMap::get(size_t index) const {
+  return capi::ICU4XReorderedIndexMap_get(this->inner.get(), index);
+}
+#endif