Re: [swift-evolution] Java-style annotations (attributes?)
> On Sep 27, 2016, at 20:24 , Chris Lattner wrote: > > >> On Sep 27, 2016, at 5:02 PM, Rick Mann via swift-evolution >> wrote: >> >> I did a little googling, but didn't find this specific question being asked. >> I've had the question in my head for a while now, so I apologize if I >> already brought this up. >> >> Will Swift ever support introspectable Java-style annotations? I think the >> current syntactic construct is called an Attribute, but they'd be >> customizable, created in much the same way as classes are. > > Hi Rick, > > This is something that many people are aware of and is commonly requested. > It isn’t on the short-term todo list (which is oriented around ABI stability > at the moment) but is something that many folks are interested in adding at > some point. Thank you, that's great news. In case you're interested, this is why I want it. I'd really like to see Baratine re-implemented in pure Swift: http://baratine.io If you can spare the time, I highly recommend checking out the Getting Started. It's revolutionary for web services. -- Rick Mann rm...@latencyzero.com ___ swift-evolution mailing list swift-evolution@swift.org https://lists.swift.org/mailman/listinfo/swift-evolution
Re: [swift-evolution] Java-style annotations (attributes?)
> On Sep 27, 2016, at 5:02 PM, Rick Mann via swift-evolution > wrote: > > I did a little googling, but didn't find this specific question being asked. > I've had the question in my head for a while now, so I apologize if I already > brought this up. > > Will Swift ever support introspectable Java-style annotations? I think the > current syntactic construct is called an Attribute, but they'd be > customizable, created in much the same way as classes are. Hi Rick, This is something that many people are aware of and is commonly requested. It isn’t on the short-term todo list (which is oriented around ABI stability at the moment) but is something that many folks are interested in adding at some point. -Chris ___ swift-evolution mailing list swift-evolution@swift.org https://lists.swift.org/mailman/listinfo/swift-evolution
[swift-evolution] Java-style annotations (attributes?)
I did a little googling, but didn't find this specific question being asked.
I've had the question in my head for a while now, so I apologize if I already
brought this up.
Will Swift ever support introspectable Java-style annotations? I think the
current syntactic construct is called an Attribute, but they'd be customizable,
created in much the same way as classes are.
They provide a very convenient way to provide plug-ins to a containing
environment. For example, web servers are often built in Java using these
techniques. You define a (plain) class that represents a service, whose methods
represent individual request endpoints:
@Service(root="/my/sub/webapp/")
class
MyWebapp
{
@Get(path="users/{id}/")
func getUsers(@Param("id") userID inUserID: Int)
-> [String:AnyObject]?
{
// return dictionary for user with ID inUserID
}
}
The container uses introspection to find all classes annotated with "Service."
It pulls the values of the parameters out of the Service annotation using
introspection. It then does a similar thing on the methods in the Service
class, etc.
Is there any work being done along these lines?
--
Rick Mann
rm...@latencyzero.com
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