objc:define-objc-typedef

(objc:define-objc-typedef (name [(:c-type type)]) [type])

Defines name as another name for an FLI type, usable wherever the defining macros and objc:invoke's list form take one. :c-type, when given, is the type and type is ignored. Part of the macOS-only objc package -- the interpreter (java -jar, or the rontolisp native binary), a compiled .class / .jar and a --native executable for macOS on Apple silicon, never a .wasm. The definition needs no runtime: the Objective-C side is made when the runtime is opened (objc:ensure-objc-initialized, or the first send). See the macOS GUI guide.

MY-APP> (define-objc-typedef (count-type) (:unsigned :int))
COUNT-TYPE
MY-APP> (define-objc-method ("count:" count-type) ((self my-object) (items objc-object-pointer (array string)))
          (length items))
"count:"
MY-APP> (invoke (alloc-init-object "MyObject") "count:" #("a" "b" "c"))
3