Struct MLCActivationLayer

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

👎Deprecated

Available on crate features MLCActivationLayer and MLCLayer only.

Apple’s documentation

Implementations

impl MLCActivationLayer

pub unsafe fn descriptor(&self) -> Retained<MLCActivationDescriptor>

👎Deprecated

Available on crate feature MLCActivationDescriptor only.

The activation descriptor

pub unsafe fn layerWithDescriptor( descriptor: &MLCActivationDescriptor, ) -> Retained<Self>

👎Deprecated

Available on crate feature MLCActivationDescriptor only.

Create an activation layer

Parameter descriptor: The activation descriptor

Returns: A new activation layer

pub unsafe fn reluLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a ReLU activation layer

Returns: A new activation layer

pub unsafe fn relu6Layer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a ReLU6 activation layer

Returns: A new activation layer

pub unsafe fn leakyReLULayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a leaky ReLU activation layer

Returns: A new activation layer

pub unsafe fn leakyReLULayerWithNegativeSlope( negative_slope: c_float, ) -> Retained<Self>

👎Deprecated

Create a leaky ReLU activation layer

Parameter negativeSlope: Controls the angle of the negative slope

Returns: A new activation layer

pub unsafe fn linearLayerWithScale_bias( scale: c_float, bias: c_float, ) -> Retained<Self>

👎Deprecated

Create a linear activation layer

Parameter scale: The scale factor

Parameter bias: The bias value

Returns: A new activation layer

pub unsafe fn sigmoidLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a sigmoid activation layer

Returns: A new activation layer

pub unsafe fn hardSigmoidLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a hard sigmoid activation layer

Returns: A new activation layer

pub unsafe fn tanhLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a tanh activation layer

Returns: A new activation layer

pub unsafe fn absoluteLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create an absolute activation layer

Returns: A new activation layer

pub unsafe fn softPlusLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a soft plus activation layer

Returns: A new activation layer

pub unsafe fn softPlusLayerWithBeta(beta: c_float) -> Retained<Self>

👎Deprecated

Create a soft plus activation layer

Parameter beta: The beta value for the softplus formation

Returns: A new activation layer

pub unsafe fn softSignLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a soft sign activation layer

Returns: A new activation layer

pub unsafe fn eluLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create an ELU activation layer

Returns: A new activation layer

pub unsafe fn eluLayerWithA(a: c_float) -> Retained<Self>

👎Deprecated

Create an ELU activation layer

Parameter a: The avalue for the ELU formation

Returns: A new activation layer

pub unsafe fn relunLayerWithA_b(a: c_float, b: c_float) -> Retained<Self>

👎Deprecated

Create a ReLUN activation layer

This can be used to implement layers such as ReLU6 for example.

Parameter a: The avalue

Parameter b: The bvalue

Returns: A new activation layer

pub unsafe fn logSigmoidLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a log sigmoid activation layer

Returns: A new activation layer

pub unsafe fn seluLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a SELU activation layer

Returns: A new activation layer

pub unsafe fn celuLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a CELU activation layer

Returns: A new activation layer

pub unsafe fn celuLayerWithA(a: c_float) -> Retained<Self>

👎Deprecated

Create a CELU activation layer

Parameter a: The avalue for the CELU formation

Returns: A new activation layer

pub unsafe fn hardShrinkLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a hard shrink activation layer

Returns: A new activation layer

pub unsafe fn hardShrinkLayerWithA(a: c_float) -> Retained<Self>

👎Deprecated

Create a hard shrink activation layer

Parameter a: The avalue for the hard shrink formation

Returns: A new activation layer

pub unsafe fn softShrinkLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a soft shrink activation layer

Returns: A new activation layer

pub unsafe fn softShrinkLayerWithA(a: c_float) -> Retained<Self>

👎Deprecated

Create a soft shrink activation layer

Parameter a: The avalue for the soft shrink formation

Returns: A new activation layer

pub unsafe fn tanhShrinkLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a TanhShrink activation layer

Returns: A new activation layer

pub unsafe fn thresholdLayerWithThreshold_replacement( threshold: c_float, replacement: c_float, ) -> Retained<Self>

👎Deprecated

Create a threshold activation layer

Parameter threshold: The value to threshold at

Parameter replacement: The value to replace with

Returns: A new activation layer

pub unsafe fn geluLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a GELU activation layer

Returns: A new activation layer

pub unsafe fn hardSwishLayer() -> Retained<MLCActivationLayer>

👎Deprecated

Create a hardswish activation layer

Returns: A new activation layer

pub unsafe fn clampLayerWithMinValue_maxValue( min_value: c_float, max_value: c_float, ) -> Retained<Self>

👎Deprecated

Create a clamp activation layer

Parameter minValue: The minimum range used by clamp

Parameter maxValue: The maximum range used by clamp

Returns: A new activation layer

impl MLCActivationLayer

Methods declared on superclass MLCLayer.

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

👎Deprecated

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

👎Deprecated

Methods from Deref<Target = MLCLayer>

pub unsafe fn layerID(&self) -> NSUInteger

👎Deprecated

The layer ID

A unique number to identify each layer. Assigned when the layer is created.

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

👎Deprecated

A string to help identify this object.

pub unsafe fn setLabel(&self, label: &NSString)

👎Deprecated

Setter for label.

pub unsafe fn isDebuggingEnabled(&self) -> bool

👎Deprecated

A flag to identify if we want to debug this layer when executing a graph that includes this layer

If this is set, we will make sure that the result tensor and gradient tensors are available for reading on CPU The default is NO. If isDebuggingEnabled is set to YES, make sure to set options to enable debugging when compiling the graph. Otherwise this property may be ignored.

pub unsafe fn setIsDebuggingEnabled(&self, is_debugging_enabled: bool)

👎Deprecated

Setter for isDebuggingEnabled.

pub unsafe fn deviceType(&self) -> MLCDeviceType

Available on crate feature MLCTypes only.

The device type where this layer will be executed

Typically the MLCDevice passed to compileWithOptions will be the device used to execute layers in the graph. If MLCDeviceTypeANE is selected, it is possible that some of the layers of the graph may not be executed on the ANE but instead on the CPU or GPU. This property can be used to determine which device type the layer will be executed on.

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 AsRef<AnyObject> for MLCActivationLayer

fn as_ref(&self) -> &AnyObject

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

impl AsRef<MLCActivationLayer> for MLCActivationLayer

fn as_ref(&self) -> &Self

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

impl AsRef<MLCLayer> for MLCActivationLayer

fn as_ref(&self) -> &MLCLayer

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

impl AsRef<NSObject> for MLCActivationLayer

fn as_ref(&self) -> &NSObject

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

impl Borrow<AnyObject> for MLCActivationLayer

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<MLCLayer> for MLCActivationLayer

fn borrow(&self) -> &MLCLayer

Immutably borrows from an owned value.

impl Borrow<NSObject> for MLCActivationLayer

fn borrow(&self) -> &NSObject

Immutably borrows from an owned value.

impl ClassType for MLCActivationLayer

const NAME: &'static str = "MLCActivationLayer"

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

type Super = MLCLayer

The superclass of this class.

type ThreadKind = <<MLCActivationLayer 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 Debug for MLCActivationLayer

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

Formats the value using the given formatter.

impl Deref for MLCActivationLayer

type Target = MLCLayer

The resulting type after dereferencing.

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

Dereferences the value.

impl Hash for MLCActivationLayer

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 Message for MLCActivationLayer

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

where Self: Sized,

Increment the reference count of the receiver.

impl NSObjectProtocol for MLCActivationLayer

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 PartialEq for MLCActivationLayer

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 RefEncode for MLCActivationLayer

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

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

impl DowncastTarget for MLCActivationLayer

impl Eq for MLCActivationLayer