tinyReflection

A tiny C++ Reflection implementation project

use Cmake to run a .exe file before every time build system(or IDE like VS) try to compiling main.cpp.

This Project is for learning purpose

//Todo：use Clang

============Chinese Start===============

实现一个C++反射系统，采用LLVM Clang制作反射工具，构建系统选择Cmake，

实现了在编译main.cpp前执行precompile.exe(metareflect.exe)来生成反射信息。

============Chinese End===============

compile llvm¹ and metareflect²

llvm version: 16.0.0git

put the metareflect folder to you-path-to\llvm-project\clang-tools-extra\

add following texts in CMakeLists.txt in you-path-to\llvm-project\clang-tools-extra\

add_subdirectory(metareflect/tooling)

move to you-path-to\llvm-project\build type in (use VS for example, not gurantee other compiler or platform can build successfully) cmake -DLLVM_ENABLE_PROJECTS="clang;clang-tools-extra" -G "Visual Studio 17 2022" -A x64 -Thost=x64 ..\llvm

use metareflect

compile_commands.json must in (use ninja to generate that file) you-path-to\llvm-project\clang-tools-extra\metareflect\metareflect

than use VS to biuld metareflect

command line: ./metareflect.exe <path_to_file> <path_to_file> can be you-path-to\llvm-project\clang-tools-extra\metareflect\metareflect\test.hxx

after parse, build CMakeList.txt in you-path-to\llvm-project\clang-tools-extra\metareflect\metareflect\ run test program.

Mile stone

Integrated metareflect in my tinyReflection Cmake project , change the Class declaration in the test.hxx and run, information of the class will automatically print to cmdline.

Next

• //TODO: add some GUI stuff to display reflection information;
• //TODO: call object's function by name;
• //TODO: fix compile_commans.json bug, compile_commans.json is generated by ninja build,and may not work well on other computer!

Reference

• [1] LLVM project:The LLVM Compiler Infrastructure

• [2] metareflect:Metareflect is a lightweight reflection system for C++, based on LLVM and Clangs libtooling.