Is it possible to write custom decorators in D? Similar to python,

Question

In python you have a function decorators. Is it possible to do something similar in D? something like:

@memoize("expensiveCalc")
int expensiveCalc(string foo){
    ///bar
}

Answer 1

Yes, it is possible. However, in D it is called an "user defined attribute" (UDA). It has been introduced in D relatively recently, and since then people use it more and more to annotate their functions.