Struct ASPasskeyCredentialIdentity

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

Available on crate feature ASPasskeyCredentialIdentity only.

Expand description

An ASPasswordCredentialIdentity is used to describe an identity that can use a service upon successful passkey based authentication. Use this class to save entries into ASCredentialIdentityStore.

Implementations§

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impl ASPasskeyCredentialIdentity

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

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pub unsafe fn initWithRelyingPartyIdentifier_userName_credentialID_userHandle_recordIdentifier( this: Allocated<Self>, relying_party_identifier: &NSString, user_name: &NSString, credential_id: &NSData, user_handle: &NSData, record_identifier: Option<&NSString>, ) -> Retained<Self>

Initialize an instance of ASPasskeyCredentialIdentity.

Parameter relyingPartyIdentifier: relying party for this credential.

Parameter userName: user name associated with this credential.

Parameter credentialID: credential ID of this passkey credential.

Parameter userHandle: user handle data of this passkey credential.

Parameter recordIdentifier: identifier used by credential provider extension to identify this credential.

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pub unsafe fn identityWithRelyingPartyIdentifier_userName_credentialID_userHandle_recordIdentifier( relying_party_identifier: &NSString, user_name: &NSString, credential_id: &NSData, user_handle: &NSData, record_identifier: Option<&NSString>, ) -> Retained<Self>

Create and initialize an instance of ASPasskeyCredentialIdentity.

Parameter relyingPartyIdentifier: relying party for this credential.

Parameter userName: user name associated with this credential.

Parameter credentialID: credential ID of this passkey credential.

Parameter userHandle: user handle data of this passkey credential.

Parameter recordIdentifier: identifier used by credential provider extension to identify this credential.

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pub unsafe fn relyingPartyIdentifier(&self) -> Retained<NSString>

The relying party identifier of this passkey credential.

This field is reported as the serviceIdentifier property of ASCredentialIdentity.

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pub unsafe fn userName(&self) -> Retained<NSString>

The user name of this passkey credential.

This field is reported as the user property of ASCredentialIdentity.

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pub unsafe fn credentialID(&self) -> Retained<NSData>

The credential ID of this passkey credential.

This field is used to identify the correct credential to use based on relying party request parameters.

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pub unsafe fn userHandle(&self) -> Retained<NSData>

The user handle of this passkey credential.

This field is used to identify the correct credential to use based on relying party request parameters.

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

Get the record identifier.

Returns: The record identifier.

You can utilize the record identifier to uniquely identify the credential identity in your local database.

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pub unsafe fn rank(&self) -> NSInteger

Get or set the rank of the credential identity object.

The system may utilize the rank to decide which credential identity precedes the other if two identities have the same service identifier. A credential identity with a larger rank value precedes one with a smaller value if both credential identities have the same service identifier. The default value of this property is 0.

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pub unsafe fn setRank(&self, rank: NSInteger)

Setter for rank.

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impl ASPasskeyCredentialIdentity

Methods declared on superclass NSObject.

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pub unsafe fn new() -> Retained<Self>

Methods from Deref<Target = NSObject>§

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

Handle messages the object doesn’t recognize.

See Apple’s documentation for details.

Methods from Deref<Target = AnyObject>§

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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());

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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.

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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`
    }
}