On Monday, 5 October 2015 at 08:44:03 UTC, Kagamin wrote:
On Monday, 5 October 2015 at 04:02:58 UTC, Jan Johansson wrote:
Sure it can, but I want a dynamic behavior, not a static
behavior. Attributes are compiler directives. They are not
available at runtime according to the specification of D
language. Now take the example at:
http://ddili.org/ders/d.en/uda.html, and separate the code
into one library that defines the attributes and "printAsXML",
keep the consumer of the attributes (main function) and get
the same slick functionality. It can't be done, because UDA is
not runtime available.
printAsXML is templated on the input type and hence can access
all its attributes at compile time. If you're familiar with
WCF, you should know that all types going through a data
contract are known at compile time.
Yes, I know WCF more than well, doing my own bindings, federated
security bindings, you name it. I also know that WCF works with
attribute values during runtime, through reflections and extract
aspect oriented instructions on how to treat types. It would be
slick to do the same in D.
