Struct fruity__bbqsrc::foundation::NSNull [−][src]
#[repr(C)]pub struct NSNull(_);
Expand description
A singleton object used to represent null values in collection objects that
don’t allow nil
values.
See documentation.
Implementations
Returns the singleton instance.
See documentation.
Methods from Deref<Target = NSObject<'static>>
Returns this object’s reference count.
This method is only useful for debugging certain objects.
See documentation.
Returns true
if this object implements or inherits a method that can
respond to a specified message.
See documentation.
Returns true
if this object is an instance or subclass of class
.
See documentation
Returns true
if this object is an instance of class
.
See documentation
Returns an integer that can be used as a table address in a hash table structure.
See documentation.
Returns a copy of this object using
NSCopying
.
See documentation.
Returns a copy of this object using
NSMutableCopying
.
See documentation.
Returns a string that describes the contents of this object.
See documentation
Returns a string that describes the contents of the receiver for presentation in the debugger.
See documentation
Trait Implementations
Casts self
into a type-erased Objective-C object.
Auto Trait Implementations
impl RefUnwindSafe for NSNull
impl UnwindSafe for NSNull