NuReference
The Nu object wrapper.
Superclass: NSObject
Declared in: objc/reference.h
The NuReference class provides a wrapper for pointers to Objective-C objects.
NuReference objects are used in the Nu language to capture arguments that are returned by value from Objective-C methods.
For example, the following Nu method uses a NuReference to capture a returned-by-reference NSError:
(imethod (id) save is
(set perror ((NuReference alloc) init))
(set result ((self managedObjectContext) save:perror))
(unless result
(NSLog "error: #{((perror value) localizedDescription)}"))
result)
Methods
| - |
(id *) |
pointerToReferencedObject |
Get a pointer to the referenced object. Used by the bridge to Objective-C to convert NuReference objects to pointers.
Don't call this from Nu.
in objc/reference.h
| - |
(void) |
retainReferencedObject |
Retain the referenced object. Used by the bridge to Objective-C to retain values returned by reference.
in objc/reference.h
| - |
(void) |
setPointer: |
(id *) pointer |
Set the pointer for a reference. Used by the bridge to create NuReference objects from pointers. Don't call this from Nu.
in objc/reference.h
| - |
(void) |
setValue: |
(id) value |
Set the value of the referenced object.
in objc/reference.h
