objc:trace-invoke

(objc:trace-invoke method)

Traces every objc:invoke of method: the call and its value are printed to *trace-output*. objc:untrace-invoke removes the trace. 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; on a machine without the runtime it signals an error. See the macOS GUI guide.

CL-USER> (objc:trace-invoke "length")
"length"
CL-USER> (objc:invoke *s* "length")
(objc:invoke #<Pointer: OBJC:OBJC-OBJECT-POINTER = #xB9D0A0E3E4E9A3A1> "length")
  => 11
11