Project structure update

.gitignore

@@ -1,3 +1,2 @@
-src/cxxbridge_code/target
-build
-
+examples/src/cxxbridge_code/target
+examples/build

README.MD

@@ -1,72 +1,39 @@
-# Example of using [CXX](https://cxx.rs/) and [Corrosion](https://github.com/corrosion-rs/corrosion) in CMake project to call Rust functions from C++
+# CMake file for using [CXX](https://cxx.rs/) and [Corrosion](https://github.com/corrosion-rs/corrosion) in CMake project to call Rust functions from C++
 
-This is a fork of the [rusty_cmake](https://github.com/trondhe/rusty_cmake) repository to use CXX and Corrosion in a CMake project to use CXX and Corrosion in a CMake project with the following modifications:
+This is a fork of the [rusty_cmake](https://github.com/trondhe/rusty_cmake) repository to use CXX and Corrosion in a CMake project with the following modifications:
 
 ### `cxx_corrosion.cmake` file:
-### `cxx_corrosion.cmake` file:
- - Windows-related code is removed (Linux and MacOS are supported) (Linux and MacOS are supported).
- - Windows-related code is removed (Linux and MacOS are supported) (Linux and MacOS are supported).
- - Simplify by using a simple one CMakeLists file for the project.
-
-### Code examples to call Rust functions from C++:
-- [Example of using a different primitive types](https://github.com/geekbrother/cxx-corrosion-cmake/blob/main/src/main.cpp) for arguments and returns.
-- Example of using [Rust Result type](https://cxx.rs/binding/result.html#returning-result-from-rust-to-c) in return and [Anyhow](https://docs.rs/anyhow/latest/anyhow/).
-- [Example of using panics](https://github.com/geekbrother/cxx-corrosion-cmake/blob/2a981b2ec34ee4d4ffe261b1be07691f74c31a04/src/main.cpp#L15) in Rust + C++.
-### Code examples to call Rust functions from C++:
-- [Example of using a different primitive types](https://github.com/geekbrother/cxx-corrosion-cmake/blob/main/src/main.cpp) for arguments and returns.
-- Example of using [Rust Result type](https://cxx.rs/binding/result.html#returning-result-from-rust-to-c) in return and [Anyhow](https://docs.rs/anyhow/latest/anyhow/).
-- [Example of using panics](https://github.com/geekbrother/cxx-corrosion-cmake/blob/2a981b2ec34ee4d4ffe261b1be07691f74c31a04/src/main.cpp#L15) in Rust + C++.
+ - Function to get STEM is removed in a favor of one-line solution;
+ - Simplify by using a simple one CMakeLists file for the project;
+ - Windows-related code is removed (Linux and MacOS are supported);
+ - Minor code changes to simplify and use a modern C++.
 
 # Why?
 
-This repo can be used as a sandbox playground for testing simple ideas of the Rust library integration in the current C++ CMake project and as examples of the usage.
-
-# Usage
-
-## Dependencies
-  - Linux or MacOS
-  - CMake
-  - Clang
-## CMake
-
-Run CMake and build commands in a project's root: 
-
-`cmake -B build . && make -C build -j4`.
+This `cmake/corrosion_cxx.cmake` can be imported in any CMake project to simplify Rust code usage in C++.
 
-Then you can run the example app by calling:
+Current solution is a battle-tested and `cmake/corrosion_cxx.cmake` file is used in a [Comm](https://comm.app) application development.
 
-`build/cxx_cmake`.
+# Examples
 
-## Nix
+Example code is located in `examples` folder.
 
-If you are using [Nix](https://nixos.org/download.html) as a development environment you can use a nix shell with all dependencies:
-
-```
-nix-shell -p cmake -p clang -p rustup -p libiconv -p git --pure
-```
+This repo example can be used as a sandbox playground for testing simple ideas of the Rust library integration in the current C++ CMake project and as examples of the usage. 
 
-And then run build commands from CMake above.
-
-## Docker
-
-There is a Docker file to build and run the example app in Docker container.
-To build it run the build command from the project's root directory:
-
-```
-docker build . -t cxx-corrosion-cmake
-```
-
-Then you can run the example app by calling:
+### Code examples to call Rust functions from C++:
+- [Example of using a different primitive types](https://github.com/geekbrother/cxx-corrosion-cmake/blob/main/src/main.cpp) for arguments and returns;
+- Example of using [Rust Result type](https://cxx.rs/binding/result.html#returning-result-from-rust-to-c) and [Anyhow](https://docs.rs/anyhow/latest/anyhow/) in return to C++;
+- [Example of using panics](https://github.com/geekbrother/cxx-corrosion-cmake/blob/2a981b2ec34ee4d4ffe261b1be07691f74c31a04/src/main.cpp#L15) in Rust when calling from C++.
 
-```
-docker run cxx-corrosion-cmake
-```
+## Dependencies
+  - Linux or MacOS
+  - CMake
+  - Clang
   - [Corrosion](https://github.com/corrosion-rs/corrosion#installation)
-# Todo
+  - Rustup
 ## CMake
- - [ ] Make it vcpkg package
- - [ ] Make it nix package
-Run CMake and build commands in a project's root: 
+
+Run CMake and build commands in the `examples` folder: 
 
 `cmake -B build . && make -C build -j4`.
 
@@ -82,12 +49,12 @@ If you are using [Nix](https://nixos.org/download.html) as a development environ
 nix-shell -p cmake -p clang -p rustup -p libiconv -p git --pure
 ```
 
-And then run build commands from CMake above.
+And then run build commands from CMake section above.
 
 ## Docker
 
 There is a Docker file to build and run the example app in Docker container.
-To build it run the build command from the project's root directory:
+To build it run the build command from the `examples` folder:
 
 ```
 docker build . -t cxx-corrosion-cmake
@@ -101,5 +68,7 @@ docker run cxx-corrosion-cmake
 
 # Todo
 
- - [ ] Make it vcpkg package
- - [ ] Make it nix package
+Create a packages in package managers to help tracking updates in the project instead of manually track the changes.
+
+ - Make it nix package
+ - Make it vcpkg package

CMakeLists.txt → examples/CMakeLists.txt

@@ -7,7 +7,7 @@ project(cxx_cmake CXX)
 set(CMAKE_CXX_STANDARD 17)
 
 find_package(Corrosion REQUIRED)
-include(cmake/corrosion_cxx.cmake)
+include(../cmake/corrosion_cxx.cmake)
 
 add_executable(${PROJECT_NAME})
 

examples/src/main.cpp

@@ -0,0 +1,38 @@
+#include "cxxbridge_code/src/lib.rs.h"
+#include <iostream>
+#include <string>
+#include "rust/cxx.h"
+
+int main()
+{
+	// Primitive types:
+	std::cout << "[1] A value given via generateb cxxbridge for lib_cxxbridge_bool: "
+						<< lib_cxxbridge_bool(true) << std::endl;
+	std::cout << "[2] A value given via generated cxxbridge for lib_cxxbridge_integer: "
+						<< lib_cxxbridge_integer(86) << std::endl;
+	const rust::String testString = "Max";
+	std::cout << "[3] A value given via generated cxxbridge for lib_cxxbridge_string: "
+						<< lib_cxxbridge_string(testString) << std::endl;
+
+	// Return Rust `Result` with  Ok:
+	std::cout << "[4] A Rust `Result Ok` value given via generated cxxbridge for lib_cxxbridge_return_result_ok:" << std::endl
+						<< lib_cxxbridge_return_result_ok() << std::endl;
+
+	// Return Rust `Result` with Error:
+	try
+	{
+		std::cout << "[5] A Rust `Result Error` value given via generated cxxbridge for lib_cxxbridge_return_result_error:" << std::endl
+							<< lib_cxxbridge_return_result_error() << std::endl;
+	}
+	catch (rust::Error e)
+	{
+		std::cerr << "Got an error from Rust function `Result`:" << std::endl;
+		std::cerr << e.what() << std::endl;
+	}
+
+	// Panic in a function call:
+	std::cout << "[6] Testing a case of panic by running lib_cxxbridge_panicked_function:" << std::endl;
+	std::cout << lib_cxxbridge_panicked_function();
+
+	return 0;
+}