Struct AnyObject

#[repr(C)]
pub struct AnyObject { /* private fields */ }

An Objective-C object.

This is slightly different from NSObject in that it may represent an instance of an arbitrary Objective-C class (e.g. it does not have to be a subclass of NSObject, so it can represent other root classes like NSProxy).

Retained<AnyObject> is equivalent to Objective-C’s id _Nonnull.

This is an opaque type that contains UnsafeCell, and is similar to that in that one can safely access and perform interior mutability on this (both via msg_send! and through ivars), so long as Rust’s mutability rules are upheld, and that data races are avoided.

Note: This is intentionally neither Sync, Send, UnwindSafe, RefUnwindSafe nor Unpin, since that is something that may change depending on the specific subclass. For example, NSAutoreleasePool is not Send, it has to be deallocated on the same thread that it was created. NSLock is not Send either.

Implementations

impl AnyObject

pub fn class(&self) -> &'static AnyClass

Dynamically find the class of this object.

Panics

May panic if the object is invalid (which may be the case for objects returned from unavailable init/new methods).

Example

Check that an instance of NSObject has the precise class NSObject.

use objc2::ClassType;
use objc2::runtime::NSObject;

let obj = NSObject::new();
assert_eq!(obj.class(), NSObject::class());

pub unsafe fn set_class<'s>(this: &AnyObject, cls: &AnyClass) -> &'s AnyClass

Change the class of the object at runtime.

Returns the object’s previous class.

Safety

The new class must:

1. Be a subclass of the object’s current class.

2. The subclass must not add any instance variables - importantly, the instance size of old and the new classes must be the same.

3. Any overridden methods on the new class must be fully compatible with the old ones.

Note that in the general case, where arbitrary parts of the program may be trying to modify the class of the object concurrently, these requirements are not actually possible to uphold.

Since usage of this function is expected to be extremely rare, and even more so trying to do it concurrently, it is recommended that you verify that the returned class is what you would expect, and if not, panic.

pub unsafe fn get_ivar<T>(&self, name: &str) -> &T

where T: Encode,

👎Deprecated: this is difficult to use correctly, use Ivar::load instead.

Use Ivar::load instead.

Safety

The object must have an instance variable with the given name, and it must be of type T.

See Ivar::load_ptr for details surrounding this.

pub unsafe fn get_mut_ivar<T>(&mut self, name: &str) -> &mut T

where T: Encode,

👎Deprecated: this is difficult to use correctly, use Ivar::load_mut instead.

Use Ivar::load_mut instead.

Safety

The object must have an instance variable with the given name, and it must be of type T.

See Ivar::load_ptr for details surrounding this.

pub fn downcast_ref<T>(&self) -> Option<&T>

where T: DowncastTarget,

Attempt to downcast the object to a class of type T.

This is the reference-variant. Use Retained::downcast if you want to convert a retained object to another type.

Mutable classes

Some classes have immutable and mutable variants, such as NSString and NSMutableString.

When some Objective-C API signature says it gives you an immutable class, it generally expects you to not mutate that, even though it may technically be mutable “under the hood”.

So using this method to convert a NSString to a NSMutableString, while not unsound, is generally frowned upon unless you created the string yourself, or the API explicitly documents the string to be mutable.

See Apple’s documentation on mutability and on isKindOfClass: for more details.

Generic classes

Objective-C generics are called “lightweight generics”, and that’s because they aren’t exposed in the runtime. This makes it impossible to safely downcast to generic collections, so this is disallowed by this method.

You can, however, safely downcast to generic collections where all the type-parameters are AnyObject.

Panics

This works internally by calling isKindOfClass:. That means that the object must have the instance method of that name, and an exception will be thrown (if CoreFoundation is linked) or the process will abort if that is not the case. In the vast majority of cases, you don’t need to worry about this, since both root objects NSObject and NSProxy implement this method.

Examples

Cast an NSString back and forth from NSObject.

use objc2::rc::Retained;
use objc2_foundation::{NSObject, NSString};

let obj: Retained<NSObject> = NSString::new().into_super();
let string = obj.downcast_ref::<NSString>().unwrap();
// Or with `downcast`, if we do not need the object afterwards
let string = obj.downcast::<NSString>().unwrap();

Try (and fail) to cast an NSObject to an NSString.

use objc2_foundation::{NSObject, NSString};

let obj = NSObject::new();
assert!(obj.downcast_ref::<NSString>().is_none());

Try to cast to an array of strings.

use objc2_foundation::{NSArray, NSObject, NSString};

let arr = NSArray::from_retained_slice(&[NSObject::new()]);
// This is invalid and doesn't type check.
let arr = arr.downcast_ref::<NSArray<NSString>>();

This fails to compile, since it would require enumerating over the array to ensure that each element is of the desired type, which is a performance pitfall.

Downcast when processing each element instead.

use objc2_foundation::{NSArray, NSObject, NSString};

let arr = NSArray::from_retained_slice(&[NSObject::new()]);

for elem in arr {
    if let Some(data) = elem.downcast_ref::<NSString>() {
        // handle `data`
    }
}

Trait Implementations

impl<T> AsRef<AnyObject> for CFArray<T>

where T: ?Sized,

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for CFData

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl<K, V> AsRef<AnyObject> for CFDictionary<K, V>

where K: ?Sized, V: ?Sized,

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for CFString

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for CFType

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for CGPath

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for CKRecord

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for DOMBlob

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for DOMCSSRule

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for DOMCSSValue

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for DOMCharacterData

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for DOMDocument

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for DOMElement

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for DOMEvent

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for DOMHTMLElement

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for DOMMouseEvent

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for DOMNode

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for DOMObject

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for DOMStyleSheet

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for DOMText

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for DOMUIEvent

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSActionCell

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSAnimation

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl<ObjectType> AsRef<AnyObject> for NSArray<ObjectType>

where ObjectType: Message + ?Sized,

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSArrayController

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSAttributedString

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSButton

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSButtonCell

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSCell

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSCharacterSet

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSClassDescription

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSCoder

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSCollectionLayoutItem

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSCollectionLayoutSupplementaryItem

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSCollectionViewLayout

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSCollectionViewLayoutInvalidationContext

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSControl

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSController

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSData

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSDate

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl<KeyType, ObjectType> AsRef<AnyObject> for NSDictionary<KeyType, ObjectType>

where KeyType: Message + ?Sized, ObjectType: Message + ?Sized,

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSDimension

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSDocument

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl<ObjectType> AsRef<AnyObject> for NSEnumerator<ObjectType>

where ObjectType: Message + ?Sized,

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSFontCollection

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSFormatter

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSGestureRecognizer

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSImageRep

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSIndexSet

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSInflectionRule

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl<AnchorType> AsRef<AnyObject> for NSLayoutAnchor<AnchorType>

where AnchorType: Message + ?Sized,

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSMatrix

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSMenuItemCell

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSMutableAttributedString

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSMutableData

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl<ObjectType> AsRef<AnyObject> for NSMutableSet<ObjectType>

where ObjectType: Message + ?Sized,

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSNibConnector

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSNotification

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSNotificationCenter

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSNumber

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSObject

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSObjectController

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSOperation

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl<ObjectType> AsRef<AnyObject> for NSOrderedSet<ObjectType>

where ObjectType: Message + ?Sized,

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSPanel

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSParagraphStyle

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSPersistentStoreRequest

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSPort

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSPortNameServer

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSPredicate

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSPropertyDescription

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSProxy

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSRegularExpression

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSResponder

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSRuleEditor

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSSavePanel

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSScriptCommand

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSScriptObjectSpecifier

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSScriptWhoseTest

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSScrubberArrangedView

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSScrubberItemView

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSScrubberLayout

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl<ObjectType> AsRef<AnyObject> for NSSet<ObjectType>

where ObjectType: Message + ?Sized,

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSSimpleCString

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSStream

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSString

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSTableView

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSText

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSTextBlock

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSTextContentManager

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSTextElement

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSTextField

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSTextFieldCell

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSTextParagraph

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSToolbarItem

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSTouchBarItem

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSTypesetter

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSURLDownload

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSURLRequest

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSURLResponse

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSURLSessionDataTask

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSURLSessionTask

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSUnit

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSUnitConverter

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSUserScriptTask

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSValue

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSValueTransformer

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSView

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSViewController

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSVisualEffectView

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSWindow

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for NSXMLNode

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for WKWebView

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for WebScriptObject

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl<T> Borrow<AnyObject> for CFArray<T>

where T: ?Sized,

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for CFData

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl<K, V> Borrow<AnyObject> for CFDictionary<K, V>

where K: ?Sized, V: ?Sized,

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for CFString

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for CFType

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for CGPath

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for CKRecord

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for DOMBlob

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for DOMCSSRule

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for DOMCSSValue

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for DOMCharacterData

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for DOMDocument

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for DOMElement

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for DOMEvent

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for DOMHTMLElement

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for DOMMouseEvent

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for DOMNode

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for DOMObject

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for DOMStyleSheet

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for DOMText

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for DOMUIEvent

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSActionCell

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSAnimation

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl<ObjectType> Borrow<AnyObject> for NSArray<ObjectType>

where ObjectType: Message + ?Sized,

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSArrayController

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSAttributedString

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSButton

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSButtonCell

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSCell

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSCharacterSet

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSClassDescription

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSCoder

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSCollectionLayoutItem

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSCollectionLayoutSupplementaryItem

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSCollectionViewLayout

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSCollectionViewLayoutInvalidationContext

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSControl

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSController

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSData

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSDate

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl<KeyType, ObjectType> Borrow<AnyObject> for NSDictionary<KeyType, ObjectType>

where KeyType: Message + ?Sized, ObjectType: Message + ?Sized,

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSDimension

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSDocument

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl<ObjectType> Borrow<AnyObject> for NSEnumerator<ObjectType>

where ObjectType: Message + ?Sized,

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSFontCollection

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSFormatter

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSGestureRecognizer

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSImageRep

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSIndexSet

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSInflectionRule

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl<AnchorType> Borrow<AnyObject> for NSLayoutAnchor<AnchorType>

where AnchorType: Message + ?Sized,

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSMatrix

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSMenuItemCell

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSMutableAttributedString

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSMutableData

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl<ObjectType> Borrow<AnyObject> for NSMutableSet<ObjectType>

where ObjectType: Message + ?Sized,

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSNibConnector

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSNotification

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSNotificationCenter

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSNumber

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSObject

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSObjectController

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSOperation

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl<ObjectType> Borrow<AnyObject> for NSOrderedSet<ObjectType>

where ObjectType: Message + ?Sized,

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSPanel

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSParagraphStyle

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSPersistentStoreRequest

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSPort

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSPortNameServer

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSPredicate

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSPropertyDescription

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSProxy

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSRegularExpression

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSResponder

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSRuleEditor

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSSavePanel

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSScriptCommand

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSScriptObjectSpecifier

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSScriptWhoseTest

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSScrubberArrangedView

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSScrubberItemView

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSScrubberLayout

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl<ObjectType> Borrow<AnyObject> for NSSet<ObjectType>

where ObjectType: Message + ?Sized,

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSSimpleCString

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSStream

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSString

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSTableView

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSText

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSTextBlock

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSTextContentManager

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSTextElement

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSTextField

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSTextFieldCell

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSTextParagraph

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSToolbarItem

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSTouchBarItem

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSTypesetter

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSURLDownload

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSURLRequest

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSURLResponse

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSURLSessionDataTask

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSURLSessionTask

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSUnit

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSUnitConverter

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSUserScriptTask

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSValue

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSValueTransformer

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSView

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSViewController

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSVisualEffectView

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSWindow

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for NSXMLNode

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for WKWebView

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<AnyObject> for WebScriptObject

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Debug for AnyObject

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Message for AnyObject

fn retain(&self) -> Retained<Self>

where Self: Sized,

Increment the reference count of the receiver.

impl MessageReceiver for &mut AnyObject

&mut AnyObject is allowed as mutable, for easier transition from objc, even though it’s basically always incorrect to hold &mut AnyObject.

Use *mut AnyObject instead if you know for certain you need mutability, and cannot make do with interior mutability.

unsafe fn send_message<A, R>(self, sel: Sel, args: A) -> R

where A: EncodeArguments, R: EncodeReturn,

Sends a message to the receiver with the given selector and arguments.

unsafe fn send_super_message<A, R>( self, superclass: &AnyClass, sel: Sel, args: A, ) -> R

where A: EncodeArguments, R: EncodeReturn,

Sends a message to a specific superclass with the given selector and arguments.

impl RefEncode for AnyObject

const ENCODING_REF: Encoding = Encoding::Object

The Objective-C type-encoding for a reference of this type.