Thanks Jacob! I tried using unsafeBitCast, but it fails with the following: “fatal error: can't unsafeBitCast between types of different sizes”. I considered wrapping every call in a closure that calls objc_msgSend(), but alas, that’s not exposed to Swift. I have another approach in mind, so I’ll try that next.
Jeff Kelley slauncha...@gmail.com | @SlaunchaMan <https://twitter.com/SlaunchaMan> | jeffkelley.org <http://jeffkelley.org/> > On Nov 19, 2016, at 1:58 AM, Jacob Bandes-Storch <jtban...@gmail.com> wrote: > > I imagine unsafeBitCast would be the way to go here. But are you assuming > that all of the instance methods have type "(Foo) throws -> Void" ? Or do you > somehow want to dynamically use the type information? > > Jacob > > On Fri, Nov 18, 2016 at 10:37 PM, Jeff Kelley via swift-users > <swift-users@swift.org <mailto:swift-users@swift.org>> wrote: > Hello, > > I’m trying to enumerate the methods of a class in Swift using the > Objective-C runtime. Everything is working fine so far, except for the very > last step. Suppose I have a Swift class like this: > > class Foo: SomeSuperclass { > > @objc func bar() { > print("Hello, World!") > } > > } > > Using the Objective-C runtime methods, I can get the method with > class_copyMethodList and then get to the method’s implementation using > method_getImplementation. However, what I need to do next is to stick this > into a tuple that looks like this: > > typealias FooEntry = (fooClass: SomeSuperclass.Type, methods: [(String, (Foo) > throws -> Void)]) > > For now, the workaround is to make a static variable that returns all > of the entries: > > static var allEntries = { > return [ > ("bar", bar), > ] > } > > Is there any way to go from the raw IMP that I get back from the > runtime to the Swift type so I can construct this list dynamically? > > > Jeff Kelley > > slauncha...@gmail.com <mailto:slauncha...@gmail.com> | @SlaunchaMan > <https://twitter.com/SlaunchaMan> | jeffkelley.org <http://jeffkelley.org/> > > _______________________________________________ > swift-users mailing list > swift-users@swift.org <mailto:swift-users@swift.org> > https://lists.swift.org/mailman/listinfo/swift-users > <https://lists.swift.org/mailman/listinfo/swift-users> > >
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