Knowing the approximative complexity of the code

[bioinfornatics]

Dear,

As some part of D language is designed to provides fact program. 
It would be really interesting to
- provides for each function/data structure their complexity see 
as example http://bigocheatsheet.com/
- get an approximate complexity of our own functions
- provides this information to IDE IntelliSense through DCD or 
others

At least the first one could be done through the D blog

thanks

best regards