refactor: add Rust infrastructure: Option, Result and panic

src/yycc/rust/option.hpp

@@ -0,0 +1,23 @@
+#pragma once
+#include <optional>
+
+/// @brief The reproduction of Rust Option type.
+/// @details
+/// This namespace reproduce Rust Option type, and its members Some and None in C++.
+/// However Option is not important than Result, so its implementation is very casual.
+namespace yycc::rust::option {
+
+    template<typename T>
+    using Option = std::optional<T>;
+
+    template<typename OptionType, typename... Args>
+    OptionType Some(Args &&... args) {
+        return OptionType(std::in_place, std::forward<Args>(args)...);
+    }
+
+    template<typename OptionType>
+    OptionType None() {
+        return OptionType(std::nullopt);
+    }
+
+}