On Aug 8, 2014, at 23:48 , Gerriet M. Denkmann <gerr...@mdenkmann.de> wrote:
> let b = NSXPCInterface( protocol: Xpc_CommonProtocol )
When I try it, the “protocol” is syntax highlighted as a keyword, so I suspect
that’s the first problem. Taking a cue from the declaration of NSXPCInterface
itself, I can fix that problem like this (using a protocol that exists for me,
just for this test):
let b = NSXPCInterface( `protocol`: NSTableViewDelegate )
After that, the compiler gives another error, and offers to fix it to:
let b = NSXPCInterface( `protocol`: NSTableViewDelegate.self )
which compiled without error.
Then I tried declaring a protocol called ‘Xpc_CommonProtocol’ and using it
instead:
protocol Xpc_CommonProtocol {}
let b = NSXPCInterface( `protocol`: Xpc_CommonProtocol.self )
and that fails with a hard-to-interpret error about type “Protocol”. Fiddling
around, I changed it to:
@objc protocol Xpc_CommonProtocol {}
let b = NSXPCInterface( `protocol`: Xpc_CommonProtocol.self )
and it compiled. I guess it makes sense that it has to be an Obj-C protocol,
but getting there isn’t at all obvious.
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