1 files changed, 56 insertions, 0 deletions
diff --git a/intl/components/src/NumberingSystem.h b/intl/components/src/NumberingSystem.h
new file mode 100644
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+++ b/intl/components/src/NumberingSystem.h
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef intl_components_NumberingSystem_h_
+#define intl_components_NumberingSystem_h_
+
+#include "mozilla/intl/ICUError.h"
+#include "mozilla/Result.h"
+#include "mozilla/Span.h"
+#include "mozilla/UniquePtr.h"
+
+struct UNumberingSystem;
+
+namespace mozilla::intl {
+
+/**
+ * This component is a Mozilla-focused API for working with numbering systems in
+ * internationalization code. It is used in coordination with other operations
+ * such as number formatting.
+ */
+class NumberingSystem final {
+ public:
+  explicit NumberingSystem(UNumberingSystem* aNumberingSystem)
+      : mNumberingSystem(aNumberingSystem) {
+    MOZ_ASSERT(aNumberingSystem);
+  };
+
+  // Do not allow copy as this class owns the ICU resource. Move is not
+  // currently implemented, but a custom move operator could be created if
+  // needed.
+  NumberingSystem(const NumberingSystem&) = delete;
+  NumberingSystem& operator=(const NumberingSystem&) = delete;
+
+  ~NumberingSystem();
+
+  /**
+   * Create a NumberingSystem.
+   */
+  static Result<UniquePtr<NumberingSystem>, ICUError> TryCreate(
+      const char* aLocale);
+
+  /**
+   * Returns the name of this numbering system.
+   *
+   * The returned string has the same lifetime as this NumberingSystem object.
+   */
+  Result<Span<const char>, ICUError> GetName();
+
+ private:
+  UNumberingSystem* mNumberingSystem = nullptr;
+};
+
+}  // namespace mozilla::intl
+
+#endif