Auto Generate Reflection Information for C++

https://www.reddit.com/r/gamedev/comments/3lh0ba/using_clang_to_generate_c_reflection_data/

https://eli.thegreenplace.net/2011/07/03/parsing-c-in-python-with-clang/

代码

https://github.com/chakaz/reflang

https://shaharmike.com/cpp/libclang/

文档

https://clang.llvm.org/doxygen/group__CINDEX.html

Windows上安装libclang的方法

 在官网https://llvm.org/下载LLVM Win Installer。安装完成后，在安装目录下找libclang.dll。

Mac上安装libclang的python绑定的方法

pip install clang

Mac上libclang的位置

With the latest (appstore) XCode 4.3.2, the location changed, it can now be found in

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/libclang.dylib

The /Developer directory, among others, no longer exists by default. Everything is now packaged inside the XCode application, so that delta updates from the appstore work.

找不到Cursor_ref方法的问题

AttributeError: module 'clang.cindex' has no attribute 'Cursor_ref'

您需要将ref_node = clang.cindex.Cursor_ref(node)更改为ref_node = node.get_definition()，以避免获得AttributeError，因为Cursor_ref不再是clang.cindex模块的属性。

Python代码find_ref.py

#!/usr/bin/env python
""" Usage: call with <filename> <typename>
"""

import sys
import clang.cindex

def find_typerefs(node, typename):
    """ Find all references to the type named 'typename'
    """
    if node.kind.is_reference():
        ref_node = node.get_definition()
        if ref_node.spelling == typename:
            print('Found %s [line=%s, col=%s]' % (typename, node.location.line, node.location.column))

    # Recurse for children of this node
    for c in node.get_children():
        find_typerefs(c, typename)

index = clang.cindex.Index.create()
tu = index.parse(sys.argv[1])
print('Translation unit:', tu.spelling)
find_typerefs(tu.cursor, sys.argv[2])

C++代码person.cpp

class Person {
};


class Room {
public:
    void add_person(Person person)
    {
        // do stuff
    }

private:
    Person* people_in_room;
};


template <class T, int N>
class Bag<T, N> {
};


int main()
{
    Person* p = new Person();
    Bag<Person, 42> bagofpersons;

    return 0;
}

 

运行

python3 find_ref.py person.cpp Person