objc:autorelease

(objc:autorelease pointer)

Gives up one reference the way objc:release does, to the innermost autorelease pool, which releases it when it is drained; with no pool, to the pointer's collector. Answers pointer. 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:with-autorelease-pool ()
           (objc:ns-string-to-string (objc:autorelease (objc:string-to-ns-string "pooled"))))
"pooled"