Struct NSDictionary 

pub struct NSDictionary<KeyType: ?Sized = AnyObject, ObjectType: ?Sized = AnyObject> { /* private fields */ }

Available on crate feature NSDictionary only.

************** Immutable Dictionary ***************

See also Apple’s documentation

Implementations

impl<KeyType: Message, ObjectType: Message> NSDictionary<KeyType, ObjectType>

Convenience creation methods.

pub fn from_slices<CopiedKey>( keys: &[&CopiedKey], objects: &[&ObjectType], ) -> Retained<Self>

where CopiedKey: Message + NSCopying + CopyingHelper<Result = KeyType>,

Available on crate feature NSObject only.

Create a new dictionary from a slice of keys, and a slice of objects.

This is a safe interface to initWithObjects:forKeys:count:.

Panics

Panics if the slices have different lengths, as this is likely a programmer error.

Example

use objc2_foundation::{NSDictionary, ns_string};

let dict = NSDictionary::from_slices(
    &[ns_string!("key1"), ns_string!("key2"), ns_string!("key3")],
    &[ns_string!("value1"), ns_string!("value2"), ns_string!("value3")],
);

assert_eq!(&*dict.objectForKey(ns_string!("key2")).unwrap(), ns_string!("value2"));

pub fn from_retained_objects<CopiedKey>( keys: &[&CopiedKey], objects: &[Retained<ObjectType>], ) -> Retained<Self>

where CopiedKey: Message + NSCopying + CopyingHelper<Result = KeyType>,

Available on crate feature NSObject only.

impl<KeyType: Message, ObjectType: Message> NSDictionary<KeyType, ObjectType>

Direct, unsafe object accessors.

Foundation’s collection types store their items in such a way that they can give out references to their data without having to autorelease it first, see the docs.

This means that we can more efficiently access the dictionary’s keys and objects, but only if the dictionary isn’t mutated via e.g. NSMutableDictionary methods while doing so - otherwise, we might end up accessing a deallocated object.

pub unsafe fn objectForKey_unchecked( &self, key: &KeyType, ) -> Option<&ObjectType>

Get a direct reference to the object corresponding to the key.

Consider using the objectForKey method instead, unless you’re seeing performance issues from the retaining.

Safety

The dictionary must not be mutated while the reference is live.

pub unsafe fn to_vecs_unchecked(&self) -> (Vec<&KeyType>, Vec<&ObjectType>)

Available on crate feature alloc only.

Two vectors containing direct references to respectively the dictionary’s keys and objects.

Consider using the to_vecs method instead, unless you’re seeing performance issues from the retaining.

Safety

The dictionary must not be mutated while the returned references are alive.

pub unsafe fn keys_unchecked(&self) -> KeysUnchecked<'_, KeyType, ObjectType>

Available on crate feature NSEnumerator only.

Iterate over the dictionary’s keys without retaining them.

Consider using the keys method instead, unless you’re seeing performance issues from the retaining.

Safety

The dictionary must not be mutated for the lifetime of the iterator, or the elements it returns.

pub unsafe fn objects_unchecked( &self, ) -> ObjectsUnchecked<'_, KeyType, ObjectType>

Available on crate feature NSEnumerator only.

Iterate over the dictionary’s objects / values without retaining them.

Consider using the objects method instead, unless you’re seeing performance issues from the retaining.

Safety

The dictionary must not be mutated for the lifetime of the iterator, or the elements it returns.

impl<KeyType: Message, ObjectType: Message> NSDictionary<KeyType, ObjectType>

Various accessor methods.

pub fn len(&self) -> usize

The amount of elements in the dictionary.

pub fn is_empty(&self) -> bool

Whether the dictionary is empty or not.

pub fn to_vecs(&self) -> (Vec<Retained<KeyType>>, Vec<Retained<ObjectType>>)

Available on crate feature alloc only.

Two vectors containing respectively the dictionary’s keys and objects.

Example

Iterate over the keys and values of the dictionary.

use objc2_foundation::{NSDictionary, ns_string};

let dict = NSDictionary::from_slices(
    &[ns_string!("a"), ns_string!("b")],
    &[ns_string!("a"), ns_string!("b")],
);
let (keys, objects) = dict.to_vecs();
for (key, obj) in keys.into_iter().zip(objects) {
    assert_eq!(key, obj);
}

pub fn keys(&self) -> Keys<'_, KeyType, ObjectType>

Available on crate feature NSEnumerator only.

Iterate over the dictionary’s keys.

pub fn objects(&self) -> Objects<'_, KeyType, ObjectType>

Available on crate feature NSEnumerator only.

Iterate over the dictionary’s objects / values.

Examples

use objc2_foundation::{ns_string, NSMutableDictionary, NSString};

let dict = NSMutableDictionary::new();
dict.insert(ns_string!("key1"), ns_string!("value1"));
dict.insert(ns_string!("key2"), ns_string!("value2"));
for obj in dict.objects() {
    assert!(obj.hasPrefix(ns_string!("value")));
}

impl<ObjectType: Message> NSDictionary<NSString, ObjectType>

NSDictionaryCreation with known NSString key (because they load PLists).

pub unsafe fn initWithContentsOfURL_error( this: Allocated<Self>, url: &NSURL, ) -> Result<Retained<Self>, Retained<NSError>>

Available on crate features NSString and NSError and NSURL only.

pub unsafe fn dictionaryWithContentsOfURL_error( url: &NSURL, ) -> Result<Retained<Self>, Retained<NSError>>

Available on crate features NSString and NSError and NSURL only.

impl<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> NSDictionary<KeyType, ObjectType>

pub unsafe fn cast_unchecked<NewKeyType: ?Sized + Message, NewObjectType: ?Sized + Message>( &self, ) -> &NSDictionary<NewKeyType, NewObjectType>

Unchecked conversion of the generic parameters.

Safety

The generics must be valid to reinterpret as the given types.

impl<KeyType: Message, ObjectType: Message> NSDictionary<KeyType, ObjectType>

pub fn count(&self) -> NSUInteger

pub fn objectForKey(&self, a_key: &KeyType) -> Option<Retained<ObjectType>>

pub unsafe fn keyEnumerator(&self) -> Retained<NSEnumerator<KeyType>>

Available on crate feature NSEnumerator only.

Safety

The returned enumerator’s underlying collection should not be mutated while in use.

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

pub unsafe fn initWithObjects_forKeys_count( this: Allocated<Self>, objects: *mut NonNull<ObjectType>, keys: *mut NonNull<ProtocolObject<dyn NSCopying>>, cnt: NSUInteger, ) -> Retained<Self>

Available on crate feature NSObject only.

Safety

• objects must be a valid pointer or null.
• keys must be a valid pointer or null.

pub unsafe fn initWithCoder( this: Allocated<Self>, coder: &NSCoder, ) -> Option<Retained<Self>>

Available on crate feature NSCoder only.

Safety

coder possibly has further requirements.

impl<KeyType: Message, ObjectType: Message> NSDictionary<KeyType, ObjectType>

Methods declared on superclass NSObject.

pub fn new() -> Retained<Self>

impl<KeyType: Message, ObjectType: Message> NSDictionary<KeyType, ObjectType>

NSExtendedDictionary.

pub fn allKeys(&self) -> Retained<NSArray<KeyType>>

Available on crate feature NSArray only.

pub fn allKeysForObject( &self, an_object: &ObjectType, ) -> Retained<NSArray<KeyType>>

Available on crate feature NSArray only.

pub fn allValues(&self) -> Retained<NSArray<ObjectType>>

Available on crate feature NSArray only.

pub fn description(&self) -> Retained<NSString>

Available on crate feature NSString only.

pub fn descriptionInStringsFileFormat(&self) -> Retained<NSString>

Available on crate feature NSString only.

pub unsafe fn descriptionWithLocale( &self, locale: Option<&AnyObject>, ) -> Retained<NSString>

Available on crate feature NSString only.

Safety

locale should be of the correct type.

pub unsafe fn descriptionWithLocale_indent( &self, locale: Option<&AnyObject>, level: NSUInteger, ) -> Retained<NSString>

Available on crate feature NSString only.

Safety

locale should be of the correct type.

pub fn isEqualToDictionary( &self, other_dictionary: &NSDictionary<KeyType, ObjectType>, ) -> bool

pub unsafe fn objectEnumerator(&self) -> Retained<NSEnumerator<ObjectType>>

Available on crate feature NSEnumerator only.

Safety

The returned enumerator’s underlying collection should not be mutated while in use.

pub fn objectsForKeys_notFoundMarker( &self, keys: &NSArray<KeyType>, marker: &ObjectType, ) -> Retained<NSArray<ObjectType>>

Available on crate feature NSArray only.

pub unsafe fn writeToURL_error( &self, url: &NSURL, ) -> Result<(), Retained<NSError>>

Available on crate features NSError and NSURL only.

pub unsafe fn keysSortedByValueUsingSelector( &self, comparator: Sel, ) -> Retained<NSArray<KeyType>>

Available on crate feature NSArray only.

Safety

comparator must be a valid selector.

pub unsafe fn getObjects_andKeys_count( &self, objects: *mut NonNull<ObjectType>, keys: *mut NonNull<KeyType>, count: NSUInteger, )

Safety

• objects must be a valid pointer or null.
• keys must be a valid pointer or null.

pub fn objectForKeyedSubscript( &self, key: &KeyType, ) -> Option<Retained<ObjectType>>

pub fn enumerateKeysAndObjectsUsingBlock( &self, block: &DynBlock<dyn Fn(NonNull<KeyType>, NonNull<ObjectType>, NonNull<Bool>) + '_>, )

Available on crate feature block2 only.

pub fn enumerateKeysAndObjectsWithOptions_usingBlock( &self, opts: NSEnumerationOptions, block: &DynBlock<dyn Fn(NonNull<KeyType>, NonNull<ObjectType>, NonNull<Bool>) + '_>, )

Available on crate features NSObjCRuntime and block2 only.

pub unsafe fn keysSortedByValueUsingComparator( &self, cmptr: NSComparator, ) -> Retained<NSArray<KeyType>>

Available on crate features NSArray and NSObjCRuntime and block2 only.

Safety

cmptr must be a valid pointer.

pub unsafe fn keysSortedByValueWithOptions_usingComparator( &self, opts: NSSortOptions, cmptr: NSComparator, ) -> Retained<NSArray<KeyType>>

Available on crate features NSArray and NSObjCRuntime and block2 only.

Safety

cmptr must be a valid pointer.

pub fn keysOfEntriesPassingTest( &self, predicate: &DynBlock<dyn Fn(NonNull<KeyType>, NonNull<ObjectType>, NonNull<Bool>) -> Bool + '_>, ) -> Retained<NSSet<KeyType>>

Available on crate features NSSet and block2 only.

pub fn keysOfEntriesWithOptions_passingTest( &self, opts: NSEnumerationOptions, predicate: &DynBlock<dyn Fn(NonNull<KeyType>, NonNull<ObjectType>, NonNull<Bool>) -> Bool + '_>, ) -> Retained<NSSet<KeyType>>

Available on crate features NSObjCRuntime and NSSet and block2 only.

impl<KeyType: Message, ObjectType: Message> NSDictionary<KeyType, ObjectType>

NSDeprecated.

pub unsafe fn getObjects_andKeys( &self, objects: *mut NonNull<ObjectType>, keys: *mut NonNull<KeyType>, )

👎Deprecated: Use -getObjects:andKeys:count: instead

This method is unsafe because it could potentially cause buffer overruns. You should use -getObjects:andKeys:count:

Safety

• objects must be a valid pointer or null.
• keys must be a valid pointer or null.

pub unsafe fn dictionaryWithContentsOfFile( path: &NSString, ) -> Option<Retained<NSDictionary<KeyType, ObjectType>>>

👎Deprecated

Available on crate feature NSString only.

pub unsafe fn dictionaryWithContentsOfURL( url: &NSURL, ) -> Option<Retained<NSDictionary<KeyType, ObjectType>>>

👎Deprecated

Available on crate feature NSURL only.

pub unsafe fn initWithContentsOfFile( this: Allocated<Self>, path: &NSString, ) -> Option<Retained<NSDictionary<KeyType, ObjectType>>>

👎Deprecated

Available on crate feature NSString only.

pub unsafe fn initWithContentsOfURL( this: Allocated<Self>, url: &NSURL, ) -> Option<Retained<NSDictionary<KeyType, ObjectType>>>

👎Deprecated

Available on crate feature NSURL only.

pub unsafe fn writeToFile_atomically( &self, path: &NSString, use_auxiliary_file: bool, ) -> bool

👎Deprecated

Available on crate feature NSString only.

pub unsafe fn writeToURL_atomically( &self, url: &NSURL, atomically: bool, ) -> bool

👎Deprecated

Available on crate feature NSURL only.

impl<KeyType: Message, ObjectType: Message> NSDictionary<KeyType, ObjectType>

NSDictionaryCreation.

pub fn dictionary() -> Retained<Self>

pub unsafe fn dictionaryWithObject_forKey( object: &ObjectType, key: &ProtocolObject<dyn NSCopying>, ) -> Retained<Self>

Available on crate feature NSObject only.

Safety

key should be of the correct type.

pub unsafe fn dictionaryWithObjects_forKeys_count( objects: *mut NonNull<ObjectType>, keys: *mut NonNull<ProtocolObject<dyn NSCopying>>, cnt: NSUInteger, ) -> Retained<Self>

Available on crate feature NSObject only.

Safety

• objects must be a valid pointer or null.
• keys must be a valid pointer or null.

pub fn dictionaryWithDictionary( dict: &NSDictionary<KeyType, ObjectType>, ) -> Retained<Self>

pub unsafe fn dictionaryWithObjects_forKeys( objects: &NSArray<ObjectType>, keys: &NSArray<ProtocolObject<dyn NSCopying>>, ) -> Retained<Self>

Available on crate features NSArray and NSObject only.

Safety

keys generic should be of the correct type.

pub fn initWithDictionary( this: Allocated<Self>, other_dictionary: &NSDictionary<KeyType, ObjectType>, ) -> Retained<Self>

pub unsafe fn initWithDictionary_copyItems( this: Allocated<Self>, other_dictionary: &NSDictionary<KeyType, ObjectType>, flag: bool, ) -> Retained<Self>

pub unsafe fn initWithObjects_forKeys( this: Allocated<Self>, objects: &NSArray<ObjectType>, keys: &NSArray<ProtocolObject<dyn NSCopying>>, ) -> Retained<Self>

Available on crate features NSArray and NSObject only.

Safety

keys generic should be of the correct type.

impl<KeyType: Message, ObjectType: Message> NSDictionary<KeyType, ObjectType>

NSSharedKeySetDictionary.

pub unsafe fn sharedKeySetForKeys( keys: &NSArray<ProtocolObject<dyn NSCopying>>, ) -> Retained<AnyObject>

Available on crate features NSArray and NSObject only.

Safety

keys generic should be of the correct type.

impl<KeyType: Message, ObjectType: Message> NSDictionary<KeyType, ObjectType>

NSFileAttributes.

pub fn fileSize(&self) -> c_ulonglong

Available on crate feature NSFileManager only.

pub fn fileModificationDate(&self) -> Option<Retained<NSDate>>

Available on crate features NSFileManager and NSDate only.

pub fn fileType(&self) -> Option<Retained<NSString>>

Available on crate features NSFileManager and NSString only.

pub fn filePosixPermissions(&self) -> NSUInteger

Available on crate feature NSFileManager only.

pub fn fileOwnerAccountName(&self) -> Option<Retained<NSString>>

Available on crate features NSFileManager and NSString only.

pub fn fileGroupOwnerAccountName(&self) -> Option<Retained<NSString>>

Available on crate features NSFileManager and NSString only.

pub fn fileSystemNumber(&self) -> NSInteger

Available on crate feature NSFileManager only.

pub fn fileSystemFileNumber(&self) -> NSUInteger

Available on crate feature NSFileManager only.

pub fn fileExtensionHidden(&self) -> bool

Available on crate feature NSFileManager only.

pub fn fileHFSCreatorCode(&self) -> u32

Available on crate feature NSFileManager only.

pub fn fileHFSTypeCode(&self) -> u32

Available on crate feature NSFileManager only.

pub fn fileIsImmutable(&self) -> bool

Available on crate feature NSFileManager only.

pub fn fileIsAppendOnly(&self) -> bool

Available on crate feature NSFileManager only.

pub fn fileCreationDate(&self) -> Option<Retained<NSDate>>

Available on crate features NSFileManager and NSDate only.

pub fn fileOwnerAccountID(&self) -> Option<Retained<NSNumber>>

Available on crate features NSFileManager and NSValue only.

pub fn fileGroupOwnerAccountID(&self) -> Option<Retained<NSNumber>>

Available on crate features NSFileManager and NSValue only.

impl<KeyType: Message, ObjectType: Message> NSDictionary<KeyType, ObjectType>

NSKeyValueCoding.

pub fn valueForKey(&self, key: &NSString) -> Option<Retained<ObjectType>>

Available on crate features NSKeyValueCoding and NSString only.

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

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 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 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<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> AsRef<AnyObject> for NSDictionary<KeyType, ObjectType>

fn as_ref(&self) -> &AnyObject

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

impl<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> AsRef<CFDictionary<KeyType, ObjectType>> for NSDictionary<KeyType, ObjectType>

Available on crate feature objc2-core-foundation only.

fn as_ref(&self) -> &CFDictionary<KeyType, ObjectType>

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

impl<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> AsRef<NSDictionary<KeyType, ObjectType>> for CFDictionary<KeyType, ObjectType>

Available on crate feature objc2-core-foundation only.

fn as_ref(&self) -> &NSDictionary<KeyType, ObjectType>

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

impl<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> AsRef<NSDictionary<KeyType, ObjectType>> for NSDictionary<KeyType, ObjectType>

fn as_ref(&self) -> &Self

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

impl<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> AsRef<NSDictionary<KeyType, ObjectType>> for NSMutableDictionary<KeyType, ObjectType>

fn as_ref(&self) -> &NSDictionary<KeyType, ObjectType>

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

impl<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> AsRef<NSObject> for NSDictionary<KeyType, ObjectType>

fn as_ref(&self) -> &NSObject

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

impl<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> Borrow<AnyObject> for NSDictionary<KeyType, ObjectType>

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> Borrow<NSDictionary<KeyType, ObjectType>> for NSMutableDictionary<KeyType, ObjectType>

fn borrow(&self) -> &NSDictionary<KeyType, ObjectType>

Immutably borrows from an owned value.

impl<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> Borrow<NSObject> for NSDictionary<KeyType, ObjectType>

fn borrow(&self) -> &NSObject

Immutably borrows from an owned value.

impl<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> ClassType for NSDictionary<KeyType, ObjectType>

const NAME: &'static str = "NSDictionary"

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

type Super = NSObject

The superclass of this class.

type ThreadKind = <<NSDictionary<KeyType, ObjectType> as ClassType>::Super as ClassType>::ThreadKind

Whether the type can be used from any thread, or from only the main thread.

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.

impl<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> CopyingHelper for NSDictionary<KeyType, ObjectType>

Available on crate feature NSObject only.

type Result = NSDictionary<KeyType, ObjectType>

The immutable counterpart of the type, or Self if the type has no immutable counterpart.

impl<KeyType: Debug + Message, ObjectType: Debug + Message> Debug for NSDictionary<KeyType, ObjectType>

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

Formats the value using the given formatter.

impl<KeyType: Message, ObjectType: Message> DefaultRetained for NSDictionary<KeyType, ObjectType>

fn default_retained() -> Retained<Self>

The default Retained for a type.

impl<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> Deref for NSDictionary<KeyType, ObjectType>

type Target = NSObject

The resulting type after dereferencing.

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

Dereferences the value.

impl<KeyType: ?Sized, ObjectType: ?Sized> Hash for NSDictionary<KeyType, ObjectType>

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<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> Message for NSDictionary<KeyType, ObjectType>

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

where Self: Sized,

Increment the reference count of the receiver.

impl<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> MutableCopyingHelper for NSDictionary<KeyType, ObjectType>

Available on crate feature NSObject only.

type Result = NSMutableDictionary<KeyType, ObjectType>

The mutable counterpart of the type, or Self if the type has no mutable counterpart.

impl<KeyType: ?Sized + NSCoding, ObjectType: ?Sized + NSCoding> NSCoding for NSDictionary<KeyType, ObjectType>

unsafe fn encodeWithCoder(&self, coder: &NSCoder)

where Self: Sized + Message,

Available on crate features NSObject and NSCoder only.

Safety

unsafe fn initWithCoder( this: Allocated<Self>, coder: &NSCoder, ) -> Option<Retained<Self>>

where Self: Sized + Message,

Available on crate features NSObject and NSCoder only.

Safety

impl<KeyType: ?Sized, ObjectType: ?Sized> NSCopying for NSDictionary<KeyType, ObjectType>

fn copy(&self) -> Retained<Self::Result>

where Self: Sized + Message + CopyingHelper,

Available on crate feature NSObject only.

Returns a new instance that’s a copy of the receiver.

unsafe fn copyWithZone(&self, zone: *mut NSZone) -> Retained<Self::Result>

where Self: Sized + Message + CopyingHelper,

Available on crate feature NSObject only.

Returns a new instance that’s a copy of the receiver.

impl<KeyType: ?Sized, ObjectType: ?Sized> NSFastEnumeration for NSDictionary<KeyType, ObjectType>

unsafe fn countByEnumeratingWithState_objects_count( &self, state: NonNull<NSFastEnumerationState>, buffer: NonNull<*mut AnyObject>, len: NSUInteger, ) -> NSUInteger

where Self: Sized + Message,

Available on crate feature NSEnumerator only.

Safety

impl<KeyType: ?Sized, ObjectType: ?Sized> NSMutableCopying for NSDictionary<KeyType, ObjectType>

fn mutableCopy(&self) -> Retained<Self::Result>

where Self: Sized + Message + MutableCopyingHelper,

Available on crate feature NSObject only.

Returns a new instance that’s a mutable copy of the receiver.

unsafe fn mutableCopyWithZone( &self, zone: *mut NSZone, ) -> Retained<Self::Result>

where Self: Sized + Message + MutableCopyingHelper,

Available on crate feature NSObject only.

Returns a new instance that’s a mutable copy of the receiver.

impl<KeyType: ?Sized, ObjectType: ?Sized> NSObjectProtocol for NSDictionary<KeyType, ObjectType>

fn isEqual(&self, other: Option<&AnyObject>) -> bool

where Self: Sized + Message,

Check whether the object is equal to an arbitrary other object.

fn hash(&self) -> usize

where Self: Sized + Message,

An integer that can be used as a table address in a hash table structure.

fn isKindOfClass(&self, cls: &AnyClass) -> bool

where Self: Sized + Message,

Check if the object is an instance of the class, or one of its subclasses.

fn is_kind_of<T>(&self) -> bool

where T: ClassType, Self: Sized + Message,

👎Deprecated: use isKindOfClass directly, or cast your objects with AnyObject::downcast_ref

Check if the object is an instance of the class type, or one of its subclasses.

fn isMemberOfClass(&self, cls: &AnyClass) -> bool

where Self: Sized + Message,

Check if the object is an instance of a specific class, without checking subclasses.

fn respondsToSelector(&self, aSelector: Sel) -> bool

where Self: Sized + Message,

Check whether the object implements or inherits a method with the given selector.

fn conformsToProtocol(&self, aProtocol: &AnyProtocol) -> bool

where Self: Sized + Message,

Check whether the object conforms to a given protocol.

fn description(&self) -> Retained<NSObject>

where Self: Sized + Message,

A textual representation of the object.

fn debugDescription(&self) -> Retained<NSObject>

where Self: Sized + Message,

A textual representation of the object to use when debugging.

fn isProxy(&self) -> bool

where Self: Sized + Message,

Check whether the receiver is a subclass of the NSProxy root class instead of the usual NSObject.

fn retainCount(&self) -> usize

where Self: Sized + Message,

The reference count of the object.

impl<KeyType: ?Sized + NSSecureCoding, ObjectType: ?Sized + NSSecureCoding> NSSecureCoding for NSDictionary<KeyType, ObjectType>

fn supportsSecureCoding() -> bool

where Self: Sized + ClassType,

Available on crate feature NSObject only.

impl<KeyType: ?Sized, ObjectType: ?Sized> PartialEq for NSDictionary<KeyType, ObjectType>

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl<KeyType: ?Sized + Message, ObjectType: ?Sized + Message> RefEncode for NSDictionary<KeyType, ObjectType>

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

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

impl DowncastTarget for NSDictionary<AnyObject, AnyObject>

impl<KeyType: ?Sized, ObjectType: ?Sized> Eq for NSDictionary<KeyType, ObjectType>