Trait fruity__bbqsrc::core::ObjectType[−][src]

pub trait ObjectType: Sized {
    fn retain(obj: &Self) -> Arc<Self>;
    unsafe fn release(obj: NonNull<Self>);
}

Expand description

An object from some runtime.

All objects have a lifetime tied to a retain count.

This is implemented using different functions for each runtime:

Objective-C: objc_retain and objc_release
Core Foundation: CFRetain and CFRelease
libdispatch (a.k.a. Grand Central Dispatch): dispatch_retain and dispatch_release

objc::ObjectType

Required methods

[src]

fn retain(obj: &Self) -> Arc<Self>

Increments the object’s retain count and returns a smart pointer that automatically calls release on Drop.

To avoid releasing on Drop, call std::mem::forget on the result.

[src]

unsafe fn release(obj: NonNull<Self>)

Decrements the object’s retain count.

Safety

The object must not be released after being deallocated, or else the program will either abort, read/write unowned memory, or trigger undefined behavior.