#tonyfettes/rc

Native target only. This package uses a C FFI finalizer (moonbit_make_external_object) to detect when an Rc is dropped, so it requires preferred-target: "native".

#Installation

moon add tonyfettes/rc

#API

type Rc[T]
  Rc::new(T) -> Rc[T]       // wrap a value
  Rc::get(Rc[T]) -> T       // consume the Rc and extract the value

type Weak[T]
  Weak::new(Rc[T]) -> Weak[T]   // create a weak reference
  Weak::get(Weak[T]) -> T?      // Some(value) while any Rc is alive, None after

#Usage

let rc = @rc.Rc::new(42)
let weak = @rc.Weak::new(rc)
assert_eq(weak.get(), Some(42))
ignore(rc)                       // last Rc dropped — value cleared
assert_eq(weak.get(), None)

#License