refactor: cancel the namespace Rust.

- all sub-functions are put into respective position.

doc/src/premise_and_principle.dox

@@ -29,7 +29,7 @@ In short words, this library use UTF8 encoding everywhere except some special ca
 \li Traditional format function in yycc::string::op.
 Traditional format function provide some overloads for ordinary string formatting.
 That's because this feature is so common to use in some cases.
-\li The message of Rust panic in yycc::rust::panic.
+\li The message of Rust panic in yycc::panic.
 Due to the limitation of \c std::format, we only can use ordinary string as its message content.
 \li The message of standard library exception.
 For the compatibility with C++ standard library exception,

src/CMakeLists.txt

@@ -15,7 +15,7 @@ PRIVATE
     yycc/string/op.cpp
     yycc/patch/fopen.cpp
     yycc/patch/stream.cpp
-    yycc/rust/panic.cpp
+    yycc/panic.cpp
     yycc/env.cpp
     yycc/windows/com.cpp
     yycc/windows/dialog.cpp
@@ -53,6 +53,7 @@ FILES
     yycc/macro/class_copy_move.hpp
     yycc/macro/printf_checker.hpp
     yycc/flag_enum.hpp
+    yycc/string.hpp
     yycc/string/reinterpret.hpp
     yycc/string/op.hpp
     yycc/patch/ptr_pad.hpp
@@ -64,11 +65,11 @@ FILES
     yycc/num/safe_cast.hpp
     yycc/num/safe_op.hpp
     yycc/num/op.hpp
-    yycc/rust/prelude.hpp
+    yycc/primitive.hpp
-    yycc/rust/primitive.hpp
+    yycc/option.hpp
-    yycc/rust/panic.hpp
+    yycc/result.hpp
-    yycc/rust/option.hpp
+    yycc/prelude.hpp
-    yycc/rust/result.hpp
+    yycc/panic.hpp
     yycc/env.hpp
     yycc/windows/import_guard_head.hpp
     yycc/windows/import_guard_tail.hpp

src/yycc/option.hpp

@@ -7,7 +7,7 @@
  * 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 {
+namespace yycc::option {
 
     template<typename T>
     using Option = std::optional<T>;
@@ -22,4 +22,4 @@ namespace yycc::rust::option {
         return OptionType(std::nullopt);
     }
 
-} // namespace yycc::rust::option
+} // namespace yycc::option

src/yycc/panic.cpp

@@ -1,6 +1,6 @@
 #include "panic.hpp"
-#include "../carton/termcolor.hpp"
+#include "carton/termcolor.hpp"
-#include "../patch/stream.hpp"
+#include "patch/stream.hpp"
 #include <cstdlib>
 #include <iomanip>
 #include <iostream>
@@ -10,7 +10,7 @@
 
 using namespace yycc::patch::stream;
 
-namespace yycc::rust::panic {
+namespace yycc::panic {
 
     void panic(const char* file, int line, const std::u8string_view& msg) {
         // Output message in stderr.
@@ -36,4 +36,4 @@ namespace yycc::rust::panic {
         std::abort();
     }
 
-} // namespace yycc::rust::panic
+} // namespace yycc::panic

src/yycc/panic.hpp

@@ -1,5 +1,5 @@
 #pragma once
-#include "../patch/format.hpp"
+#include "patch/format.hpp"
 #include <string_view>
 #include <format>
 
@@ -21,7 +21,7 @@
  * In this way, unexpected behavior in our code will cause the program to exit immediately, outputting error information and stack traces.
  * Standard library exceptions will also cause the program to exit, but without stack information.
  */
-namespace yycc::rust::panic {
+namespace yycc::panic {
 
     /**
      * @brief Immediately crashes the entire program like Rust's \c panic! macro.
@@ -31,7 +31,7 @@ namespace yycc::rust::panic {
      * However, this format function is specially modified that it can accept UTF8 format string and UTF8 string argument.
      * More preciously, it is "format" in \c yycc::patch::format namespace.
      */
-#define RS_PANIC(msg, ...) ::yycc::rust::panic::panic(__FILE__, __LINE__, ::yycc::patch::format::format(msg __VA_OPT__(, ) __VA_ARGS__))
+#define RS_PANIC(msg, ...) ::yycc::panic::panic(__FILE__, __LINE__, ::yycc::patch::format::format(msg __VA_OPT__(, ) __VA_ARGS__))
 
     /**
      * @brief Immediately crashes the entire program like Rust's \c panic! macro.
@@ -44,4 +44,4 @@ namespace yycc::rust::panic {
      */
     [[noreturn]] void panic(const char* file, int line, const std::u8string_view& msg);
 
-} // namespace yycc::rust::panic
+} // namespace yycc::panic

src/yycc/prelude.hpp

@@ -0,0 +1,49 @@
+#pragma once
+
+// Rust prelude section
+#include "primitive.hpp"
+#include "result.hpp"
+#include "option.hpp"
+#include "panic.hpp"
+#include <vector>
+
+namespace yycc::prelude {
+    // Include primitive types
+
+#define NS_YYCC_PRIMITIVE ::yycc::primitive
+
+    using i8 = NS_YYCC_PRIMITIVE::i8;
+    using i16 = NS_YYCC_PRIMITIVE::i16;
+    using i32 = NS_YYCC_PRIMITIVE::i32;
+    using i64 = NS_YYCC_PRIMITIVE::i64;
+    using u8 = NS_YYCC_PRIMITIVE::u8;
+    using u16 = NS_YYCC_PRIMITIVE::u16;
+    using u32 = NS_YYCC_PRIMITIVE::u32;
+    using u64 = NS_YYCC_PRIMITIVE::u64;
+
+    using isize = NS_YYCC_PRIMITIVE::isize;
+    using usize = NS_YYCC_PRIMITIVE::usize;
+
+    using f32 = NS_YYCC_PRIMITIVE::f32;
+    using f64 = NS_YYCC_PRIMITIVE::f64;
+
+    using str = NS_YYCC_PRIMITIVE::str;
+
+#undef NS_YYCC_PRIMITIVE
+
+    // Other types
+    using String = std::u8string;
+    template<typename T>
+    using Vec = std::vector<T>;
+
+    // Expose Result and Option
+    using namespace ::yycc::option;
+    using namespace ::yycc::result;
+
+    // Panic are introduced by including header file
+    // so we do not need re-expose it.
+
+} // namespace yycc::prelude
+
+// Expose all members
+using namespace ::yycc::prelude;

src/yycc/primitive.hpp

@@ -3,7 +3,7 @@
 #include <cstddef>
 #include <string_view>
 
-namespace yycc::rust::primitive {
+namespace yycc::primitive {
 
 	// `bool` is keyword so should not declare it anymore.
 	// `char` is keyword so should not declare it anymore.
@@ -25,4 +25,3 @@ namespace yycc::rust::primitive {
 
 	using str = std::u8string_view;
 }
-

src/yycc/result.hpp

@@ -36,7 +36,7 @@
  * Similarly, when using \c std::cerr 's \c operator<< overload, you also need to write suitable adapters.
  * @remarks This namespace only work with environment supporting `std::expected` (i.e. C++ 23).
  */
-namespace yycc::rust::result {
+namespace yycc::result {
 
     /**
      * @brief Equivalent Rust \c Result in C++
@@ -74,4 +74,4 @@ namespace yycc::rust::result {
         return ResultType(std::unexpect, std::forward<Args>(args)...);
     }
 
-} // namespace yycc::rust::result
+} // namespace yycc::result

src/yycc/rust/prelude.hpp

@@ -1,49 +0,0 @@
-#pragma once
-
-// Rust prelude section
-#include "primitive.hpp"
-#include "result.hpp"
-#include "option.hpp"
-#include "panic.hpp"
-#include <vector>
-
-namespace yycc::rust::prelude {
-    // Include primitive types
-
-#define NS_RUST_PRIMITIVE ::yycc::rust::primitive
-
-    using i8 = NS_RUST_PRIMITIVE::i8;
-    using i16 = NS_RUST_PRIMITIVE::i16;
-    using i32 = NS_RUST_PRIMITIVE::i32;
-    using i64 = NS_RUST_PRIMITIVE::i64;
-    using u8 = NS_RUST_PRIMITIVE::u8;
-    using u16 = NS_RUST_PRIMITIVE::u16;
-    using u32 = NS_RUST_PRIMITIVE::u32;
-    using u64 = NS_RUST_PRIMITIVE::u64;
-
-    using isize = NS_RUST_PRIMITIVE::isize;
-    using usize = NS_RUST_PRIMITIVE::usize;
-
-    using f32 = NS_RUST_PRIMITIVE::f32;
-    using f64 = NS_RUST_PRIMITIVE::f64;
-
-    using str = NS_RUST_PRIMITIVE::str;
-
-#undef NS_RUST_PRIMITIVE
-
-    // Other types
-    using String = std::u8string;
-    template<typename T>
-    using Vec = std::vector<T>;
-
-    // Expose Result and Option
-    using namespace ::yycc::rust::option;
-    using namespace ::yycc::rust::result;
-
-    // Panic are introduced by including header file
-    // so we do not need re-expose it.
-
-} // namespace yycc::prelude::rust
-
-// Expose all members
-using namespace ::yycc::rust::prelude;

src/yycc/string.hpp

@@ -0,0 +1,9 @@
+#pragma once
+
+// TODO:
+// Add content safe, Rust-like string container "String"
+// and string view "str" in there.
+// Once we add it, all string process function can be migrated as their class member,
+// or keep them independendly but change the type of parameter into our string types.
+
+namespace yycc::string {}

test/yycc/constraint.cpp

@@ -2,7 +2,7 @@
 #include <yycc.hpp>
 #include <yycc/constraint.hpp>
 
-#include <yycc/rust/prelude.hpp>
+#include <yycc/prelude.hpp>
 
 #define CONSTRAINT ::yycc::constraint::Constraint
 

test/yycc/constraint/builder.cpp

@@ -2,7 +2,7 @@
 #include <yycc.hpp>
 #include <yycc/constraint/builder.hpp>
 
-#include <yycc/rust/prelude.hpp>
+#include <yycc/prelude.hpp>
 
 #define BUILDER ::yycc::constraint::builder
 using namespace std::literals::string_view_literals;

test/yycc/flag_enum.cpp

@@ -3,7 +3,7 @@
 #include <yycc/flag_enum.hpp>
 #include <cinttypes>
 
-#include <yycc/rust/prelude.hpp>
+#include <yycc/prelude.hpp>
 
 #define FLAG_ENUM ::yycc::flag_enum
 

test/yycc/num/op.cpp

@@ -2,7 +2,7 @@
 #include <yycc.hpp>
 #include <yycc/num/op.hpp>
 
-#include <yycc/rust/prelude.hpp>
+#include <yycc/prelude.hpp>
 
 #define OP ::yycc::num::op
 

test/yycc/num/parse.cpp

@@ -2,7 +2,7 @@
 #include <yycc.hpp>
 #include <yycc/num/parse.hpp>
 
-#include <yycc/rust/prelude.hpp>
+#include <yycc/prelude.hpp>
 
 #define PARSE ::yycc::num::parse
 

test/yycc/num/safe_cast.cpp

@@ -3,7 +3,7 @@
 #include <yycc/num/safe_cast.hpp>
 #include <yycc/macro/ptr_size_detector.hpp>
 
-#include <yycc/rust/prelude.hpp>
+#include <yycc/prelude.hpp>
 
 #define CAST ::yycc::num::safe_cast
 

test/yycc/num/safe_op.cpp

@@ -4,7 +4,7 @@
 #include <cstdint>
 #include <limits>
 
-#include <yycc/rust/prelude.hpp>
+#include <yycc/prelude.hpp>
 
 #define OP ::yycc::num::safe_op
 

test/yycc/num/stringify.cpp

@@ -2,7 +2,7 @@
 #include <yycc.hpp>
 #include <yycc/num/stringify.hpp>
 
-#include <yycc/rust/prelude.hpp>
+#include <yycc/prelude.hpp>
 
 #define STRINGIFY ::yycc::num::stringify
 

test/yycc/string/op.cpp

@@ -2,7 +2,7 @@
 #include <yycc.hpp>
 #include <yycc/string/op.hpp>
 
-#include <yycc/rust/prelude.hpp>
+#include <yycc/prelude.hpp>
 
 #define OP ::yycc::string::op
 using namespace std::literals::string_view_literals;

test/yycc/string/reinterpret.cpp

@@ -3,7 +3,7 @@
 #include <yycc.hpp>
 #include <yycc/string/reinterpret.hpp>
 
-#include <yycc/rust/prelude.hpp>
+#include <yycc/prelude.hpp>
 
 #define REINTERPRET ::yycc::string::reinterpret
 #define AS_UINT8(p) static_cast<u8>(p)