Struct objc2_ui_kit::UICollectionViewDiffableDataSourceSectionSnapshotHandlers

#[repr(C)]
pub struct UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType: ?Sized = AnyObject> { /* private fields */ }

Available on crate feature UIDiffableDataSource only.

Implementations

impl<ItemType: Message> UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

pub unsafe fn shouldExpandItemHandler( &self ) -> *mut Block<dyn Fn(NonNull<ItemType>) -> Bool>

Available on crate feature block2 only.

pub unsafe fn setShouldExpandItemHandler( &self, should_expand_item_handler: Option<&Block<dyn Fn(NonNull<ItemType>) -> Bool>> )

Available on crate feature block2 only.

pub unsafe fn willExpandItemHandler( &self ) -> *mut Block<dyn Fn(NonNull<ItemType>)>

Available on crate feature block2 only.

pub unsafe fn setWillExpandItemHandler( &self, will_expand_item_handler: Option<&Block<dyn Fn(NonNull<ItemType>)>> )

Available on crate feature block2 only.

pub unsafe fn shouldCollapseItemHandler( &self ) -> *mut Block<dyn Fn(NonNull<ItemType>) -> Bool>

Available on crate feature block2 only.

pub unsafe fn setShouldCollapseItemHandler( &self, should_collapse_item_handler: Option<&Block<dyn Fn(NonNull<ItemType>) -> Bool>> )

Available on crate feature block2 only.

pub unsafe fn willCollapseItemHandler( &self ) -> *mut Block<dyn Fn(NonNull<ItemType>)>

Available on crate feature block2 only.

pub unsafe fn setWillCollapseItemHandler( &self, will_collapse_item_handler: Option<&Block<dyn Fn(NonNull<ItemType>)>> )

Available on crate feature block2 only.

pub unsafe fn snapshotForExpandingParentItemHandler( &self ) -> *mut Block<dyn Fn(NonNull<ItemType>, NonNull<NSDiffableDataSourceSectionSnapshot<ItemType>>) -> NonNull<NSDiffableDataSourceSectionSnapshot<ItemType>>>

Available on crate features NSDiffableDataSourceSectionSnapshot and block2 only.

pub unsafe fn setSnapshotForExpandingParentItemHandler( &self, snapshot_for_expanding_parent_item_handler: Option<&Block<dyn Fn(NonNull<ItemType>, NonNull<NSDiffableDataSourceSectionSnapshot<ItemType>>) -> NonNull<NSDiffableDataSourceSectionSnapshot<ItemType>>>> )

Available on crate features NSDiffableDataSourceSectionSnapshot and block2 only.

impl<ItemType: Message> UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

Methods declared on superclass NSObject

pub unsafe fn init(this: Allocated<Self>) -> Retained<Self>

pub unsafe fn new(mtm: MainThreadMarker) -> Retained<Self>

Methods from Deref<Target = NSObject>

pub fn doesNotRecognizeSelector(&self, sel: Sel) -> !

Handle messages the object doesn’t recognize.

See Apple’s documentation for details.

Methods from Deref<Target = AnyObject>

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

Available on crate feature UIIndirectScribbleInteraction only.

Dynamically find the class of this object.

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

where T: Encode,

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

Available on crate feature UIIndirectScribbleInteraction only.

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.

Available on crate feature UIIndirectScribbleInteraction only.

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.

Trait Implementations

impl<ItemType: ?Sized + Message> AsMut<AnyObject> for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

fn as_mut(&mut self) -> &mut AnyObject

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

impl<ItemType: ?Sized + Message> AsMut<NSObject> for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

fn as_mut(&mut self) -> &mut NSObject

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

impl<ItemType: ?Sized + Message> AsMut<UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>> for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

fn as_mut(&mut self) -> &mut Self

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

impl<ItemType: ?Sized + Message> AsRef<AnyObject> for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

fn as_ref(&self) -> &AnyObject

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

impl<ItemType: ?Sized + Message> AsRef<NSObject> for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

fn as_ref(&self) -> &NSObject

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

impl<ItemType: ?Sized + Message> AsRef<UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>> for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

fn as_ref(&self) -> &Self

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

impl<ItemType: ?Sized + Message> Borrow<AnyObject> for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl<ItemType: ?Sized + Message> Borrow<NSObject> for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

fn borrow(&self) -> &NSObject

Immutably borrows from an owned value.

impl<ItemType: ?Sized + Message> BorrowMut<AnyObject> for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

fn borrow_mut(&mut self) -> &mut AnyObject

Mutably borrows from an owned value.

impl<ItemType: ?Sized + Message> BorrowMut<NSObject> for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

fn borrow_mut(&mut self) -> &mut NSObject

Mutably borrows from an owned value.

impl<ItemType: ?Sized + Message> ClassType for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

type Super = NSObject

The superclass of this class.

type Mutability = MainThreadOnly

Whether the type is mutable or immutable.

const NAME: &'static str = "UICollectionViewDiffableDataSourceSectionSnapshotHandlers"

The name of the Objective-C class that this type represents.

fn class() -> &'static AnyClass

Get a reference to the Objective-C class that this type represents.

fn as_super(&self) -> &Self::Super

Get an immutable reference to the superclass.

fn as_super_mut(&mut self) -> &mut Self::Super

Get a mutable reference to the superclass.

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

where Self: IsRetainable + Sized,

Increment the reference count of the receiver.

impl<ItemType: Debug + ?Sized> Debug for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

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

Formats the value using the given formatter.

impl<ItemType: ?Sized + Message> Deref for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

type Target = NSObject

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<ItemType: ?Sized + Message> DerefMut for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<ItemType: Hash + ?Sized> Hash for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<ItemType: PartialEq + ?Sized> PartialEq for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

fn eq( &self, other: &UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType> ) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<ItemType: ?Sized + Message> RefEncode for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

const ENCODING_REF: Encoding = <NSObject as ::objc2::RefEncode>::ENCODING_REF

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

impl<ItemType: Eq + ?Sized> Eq for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

impl<ItemType: ?Sized + Message> Message for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

impl<ItemType: ?Sized + IsIdCloneable> NSCopying for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

impl<ItemType: ?Sized> NSObjectProtocol for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>

impl<ItemType: ?Sized> StructuralPartialEq for UICollectionViewDiffableDataSourceSectionSnapshotHandlers<ItemType>