LibUnicode: Generate a list of available calendars

2 files changed, 30 insertions, 0 deletions

diff --git a/Meta/Lagom/Tools/CodeGenerators/LibUnicode/GenerateUnicodeDateTimeFormat.cpp b/Meta/Lagom/Tools/CodeGenerators/LibUnicode/GenerateUnicodeDateTimeFormat.cpp
index 6afd2df3b8..a6da368542 100644
--- a/Meta/Lagom/Tools/CodeGenerators/LibUnicode/GenerateUnicodeDateTimeFormat.cpp
+++ b/Meta/Lagom/Tools/CodeGenerators/LibUnicode/GenerateUnicodeDateTimeFormat.cpp
@@ -1863,6 +1863,8 @@ struct DayPeriodData {
 };
 )~~~");
 
+    generate_available_values(generator, "get_available_calendars"sv, locale_data.calendars, locale_data.calendar_aliases);
+
     locale_data.unique_formats.generate(generator, "CalendarFormatImpl"sv, "s_calendar_formats"sv, 10);
     locale_data.unique_symbol_lists.generate(generator, s_string_index_type, "s_symbol_lists"sv);
     locale_data.unique_calendar_symbols.generate(generator, "CalendarSymbols"sv, "s_calendar_symbols"sv, 10);
diff --git a/Meta/Lagom/Tools/CodeGenerators/LibUnicode/GeneratorUtil.h b/Meta/Lagom/Tools/CodeGenerators/LibUnicode/GeneratorUtil.h
index 669ace5c79..d9c817f6e4 100644
--- a/Meta/Lagom/Tools/CodeGenerators/LibUnicode/GeneratorUtil.h
+++ b/Meta/Lagom/Tools/CodeGenerators/LibUnicode/GeneratorUtil.h
@@ -488,3 +488,31 @@ static constexpr Array<Span<@type@ const>, @size@> @name@ { {
 } };
 )~~~");
 }
+
+template<typename T>
+void generate_available_values(SourceGenerator& generator, StringView name, Vector<T> const& values, Vector<Alias> const& aliases = {})
+{
+    generator.set("name", name);
+    generator.set("size", String::number(values.size()));
+
+    generator.append(R"~~~(
+Span<StringView const> @name@()
+{
+    static constexpr Array<StringView, @size@> values { {)~~~");
+
+    bool first = true;
+    for (auto const& value : values) {
+        generator.append(first ? " " : ", ");
+        first = false;
+
+        if (auto it = aliases.find_if([&](auto const& alias) { return alias.name == value; }); it != aliases.end())
+            generator.append(String::formatted("\"{}\"sv", it->alias));
+        else
+            generator.append(String::formatted("\"{}\"sv", value));
+    }
+
+    generator.append(R"~~~( } };
+    return values.span();
+}
+)~~~");
+}