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Friday, September 29 • 1:30pm - 2:30pm
Compile-time reflection, Serialization and ORM Examples

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We will discuss what reflection is and how it can be implemented in Modern C++. The techniques used will include a mix of C++11/14 features (void_t, tuple, index_sequence, variadic templates, auto functions, decltype(auto), constexpr, type_traits, etc), classic C++ features, and macros.

We’ll use a couple of example libraries to show the essence and power of compile-time reflection and show how to simplify and improve their implementation with C++17 features such as inline variables, constexpr if, structure binding, fold expressions, and string_view.

The first example is a library that can serialize a struct into any of a variety of data formats, such as JSON, XML, MessagePack, or a custom format.

We’ll then apply the same techniques to implement an Object-Relational Mapping (ORM) library to serialize structs into the tables of any of a variety of databases, such as SQLite, MySQL, Postgres, etc.

We’ll discuss some of the challenges and limitations of these techniques and what features could be added to C++ to improve support for compile-time reflection.

Speakers
avatar for Yu Qi

Yu Qi

Technical Director, purecpp.org
Yu is a C++ programmer with 10 years experience who lives in Zhuhai, Guangdong province, China. He loves modern C++ and has founded an open source community ( http://www.purecpp.org/ ) to promote C++11/14 in China. His focus is distributed systems and he is the author of rest_rp... Read More →


Friday September 29, 2017 1:30pm - 2:30pm
Ferranti (403) Meydenbauer Center