Annotations in PHP7

hi, During discussion of different ways of implementing "Design by Contract" we got an idea of using annotations. BTW: annotations are useful by their own and may be used for different purposes. Support for annotations was proposed long time ago: https://wiki.php.net/rfc/annotations https://wiki.php.net/rfc/annotations-in-docblock https://wiki.php.net/rfc/reflection_doccomment_annotations HHVM already implemented similar concept http://docs.hhvm.com/manual/en/hack.attributes.php I made a quick and dirty PoC that shows how we may implement annotations in PHP7 and how powerful they may be : https://gist.github.com/dstogov/dbf2a8f46e43719bd2c2 The test there is self explainable. Of course, annotations just provide a way to add metadata, but doesn't define attribute names or the ways they are going to be used. Only Reflection API to read. There are still a lot of technical problems that have to be solved. Right now, we just need to answer a question - if we like this in PHP7? Thought and opinions are welcome... Thanks. Dmitry.