cpp_script is a header-only C++ 20 library that tries to bring Python expressions such as list,dict,range,etc. to C++ and aims to make them have the same "feel" as when writing real Python code. In order for class instances to work with container classes of cpp_script such as List or Dict, they must inherit from Object. Behind the scenes, cpp_script uses dynamic_cast a lot, causing a List which stores only integer values to be much slower than a std::vector<int>. Expect code using cpp_script to be slightly faster than equivalent Python code.
In order to create a new class that is compatible with List, Dict or other cpp_script containers, it must inherit from Object and follow some other rules, which are listed below:
- Inherit as
public virtual Object - Implement the copy constructor.
- Implement the destructor and call
OBJECT_DESCTRUCT, except if the class is abstract.
Optional:
- Override
is_equal. - Override
to_string.
The implementation of Int in include/primitives.hpp is a good example.
Test can be run with:
cd build && make && ctest -T memcheck
- Catch2