Struct MLCConvolutionDescriptor

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

👎Deprecated

Available on crate feature MLCConvolutionDescriptor only.

The MLCConvolutionDescriptor specifies a convolution descriptor

See also Apple’s documentation

Implementations

impl MLCConvolutionDescriptor

pub unsafe fn convolutionType(&self) -> MLCConvolutionType

👎Deprecated

Available on crate feature MLCTypes only.

The type of convolution.

pub unsafe fn kernelWidth(&self) -> NSUInteger

👎Deprecated

The convolution kernel size in x.

pub unsafe fn kernelHeight(&self) -> NSUInteger

👎Deprecated

The convolution kernel size in y.

pub unsafe fn inputFeatureChannelCount(&self) -> NSUInteger

👎Deprecated

Number of channels in the input tensor

pub unsafe fn outputFeatureChannelCount(&self) -> NSUInteger

👎Deprecated

Number of channels in the output tensor

pub unsafe fn strideInX(&self) -> NSUInteger

👎Deprecated

The stride of the kernel in x.

pub unsafe fn strideInY(&self) -> NSUInteger

👎Deprecated

The stride of the kernel in y.

pub unsafe fn dilationRateInX(&self) -> NSUInteger

👎Deprecated

The dilation rate i.e. stride of elements in the kernel in x.

pub unsafe fn dilationRateInY(&self) -> NSUInteger

👎Deprecated

The dilation rate i.e. stride of elements in the kernel in y.

pub unsafe fn groupCount(&self) -> NSUInteger

👎Deprecated

Number of blocked connections from input channels to output channels

pub unsafe fn paddingPolicy(&self) -> MLCPaddingPolicy

👎Deprecated

Available on crate feature MLCTypes only.

The padding policy to use.

pub unsafe fn paddingSizeInX(&self) -> NSUInteger

👎Deprecated

The pooling size in x (left and right) to use if paddingPolicy is MLCPaddingPolicyUsePaddingSize

pub unsafe fn paddingSizeInY(&self) -> NSUInteger

👎Deprecated

The pooling size in y (top and bottom) to use if paddingPolicy is MLCPaddingPolicyUsePaddingSize

pub unsafe fn isConvolutionTranspose(&self) -> bool

👎Deprecated

A flag to indicate if this is a convolution transpose

pub unsafe fn usesDepthwiseConvolution(&self) -> bool

👎Deprecated

A flag to indicate depthwise convolution

pub unsafe fn descriptorWithType_kernelSizes_inputFeatureChannelCount_outputFeatureChannelCount_groupCount_strides_dilationRates_paddingPolicy_paddingSizes( convolution_type: MLCConvolutionType, kernel_sizes: &NSArray<NSNumber>, input_feature_channel_count: NSUInteger, output_feature_channel_count: NSUInteger, group_count: NSUInteger, strides: &NSArray<NSNumber>, dilation_rates: &NSArray<NSNumber>, padding_policy: MLCPaddingPolicy, padding_sizes: Option<&NSArray<NSNumber>>, ) -> Retained<Self>

👎Deprecated

Available on crate feature MLCTypes only.

Creates a convolution descriptor with the specified convolution type.

Parameter convolutionType: The type of convolution.

Parameter kernelSizes: The kernel sizes in x and y.

Parameter inputFeatureChannelCount: The number of feature channels in the input tensor.

Parameter outputFeatureChannelCount: The number of feature channels in the output tensor. When the convolution type is MLCConvolutionTypeDepthwise, this value must be a multiple of inputFeatureChannelCount.

Parameter groupCount: The number of groups.

Parameter strides: The kernel strides in x and y.

Parameter dilationRates: The dilation rates in x and y.

Parameter paddingPolicy: The padding policy.

Parameter paddingSizes: The padding sizes in x and y if padding policy is MLCPaddingPolicyUsePaddingSize.

Returns: A new convolution descriptor.

pub unsafe fn descriptorWithKernelWidth_kernelHeight_inputFeatureChannelCount_outputFeatureChannelCount( kernel_width: NSUInteger, kernel_height: NSUInteger, input_feature_channel_count: NSUInteger, output_feature_channel_count: NSUInteger, ) -> Retained<Self>

👎Deprecated

Create a MLCConvolutionDescriptor object

Parameter kernelWidth: The kernel size in x

Parameter kernelHeight: The kernel size in x

Parameter inputFeatureChannelCount: The number of feature channels in the input tensor

Parameter outputFeatureChannelCount: The number of feature channels in the output tensor

Returns: A new MLCConvolutionDescriptor object.

pub unsafe fn descriptorWithKernelSizes_inputFeatureChannelCount_outputFeatureChannelCount_strides_paddingPolicy_paddingSizes( kernel_sizes: &NSArray<NSNumber>, input_feature_channel_count: NSUInteger, output_feature_channel_count: NSUInteger, strides: &NSArray<NSNumber>, padding_policy: MLCPaddingPolicy, padding_sizes: Option<&NSArray<NSNumber>>, ) -> Retained<Self>

👎Deprecated

Available on crate feature MLCTypes only.

Create a MLCConvolutionDescriptor object

Parameter kernelSizes: The kernel sizes in x and y

Parameter inputFeatureChannelCount: The number of feature channels in the input tensor

Parameter outputFeatureChannelCount: The number of feature channels in the output tensor

Parameter strides: The kernel strides in x and y

Parameter paddingPolicy: The padding policy

Parameter paddingSizes: The padding sizes in x and y if padding policy is MLCPaddingPolicyUsePaddingSIze

Returns: A new MLCConvolutionDescriptor object.

pub unsafe fn descriptorWithKernelSizes_inputFeatureChannelCount_outputFeatureChannelCount_groupCount_strides_dilationRates_paddingPolicy_paddingSizes( kernel_sizes: &NSArray<NSNumber>, input_feature_channel_count: NSUInteger, output_feature_channel_count: NSUInteger, group_count: NSUInteger, strides: &NSArray<NSNumber>, dilation_rates: &NSArray<NSNumber>, padding_policy: MLCPaddingPolicy, padding_sizes: Option<&NSArray<NSNumber>>, ) -> Retained<Self>

👎Deprecated

Available on crate feature MLCTypes only.

Create a MLCConvolutionDescriptor object

Parameter kernelSizes: The kernel sizes in x and y

Parameter inputFeatureChannelCount: The number of feature channels in the input tensor

Parameter outputFeatureChannelCount: The number of feature channels in the output tensor

Parameter groupCount: Number of groups

Parameter strides: The kernel strides in x and y

Parameter dilationRates: The dilation rates in x and y

Parameter paddingPolicy: The padding policy

Parameter paddingSizes: The padding sizes in x and y if padding policy is MLCPaddingPolicyUsePaddingSIze

Returns: A new MLCConvolutionDescriptor object.

pub unsafe fn convolutionTransposeDescriptorWithKernelWidth_kernelHeight_inputFeatureChannelCount_outputFeatureChannelCount( kernel_width: NSUInteger, kernel_height: NSUInteger, input_feature_channel_count: NSUInteger, output_feature_channel_count: NSUInteger, ) -> Retained<Self>

👎Deprecated

Create a MLCConvolutionDescriptor object for convolution transpose

Parameter kernelWidth: The kernel size in x

Parameter kernelHeight: The kernel size in x

Parameter inputFeatureChannelCount: The number of feature channels in the input tensor

Parameter outputFeatureChannelCount: The number of feature channels in the output tensor

Returns: A new MLCConvolutionDescriptor object.

pub unsafe fn convolutionTransposeDescriptorWithKernelSizes_inputFeatureChannelCount_outputFeatureChannelCount_strides_paddingPolicy_paddingSizes( kernel_sizes: &NSArray<NSNumber>, input_feature_channel_count: NSUInteger, output_feature_channel_count: NSUInteger, strides: &NSArray<NSNumber>, padding_policy: MLCPaddingPolicy, padding_sizes: Option<&NSArray<NSNumber>>, ) -> Retained<Self>

👎Deprecated

Available on crate feature MLCTypes only.

Create a MLCConvolutionDescriptor object for convolution transpose

Parameter kernelSizes: The kernel sizes in x and y

Parameter inputFeatureChannelCount: The number of feature channels in the input tensor

Parameter outputFeatureChannelCount: The number of feature channels in the output tensor

Parameter strides: The kernel strides in x and y

Parameter paddingPolicy: The padding policy

Parameter paddingSizes: The padding sizes in x and y if padding policy is MLCPaddingPolicyUsePaddingSIze

Returns: A new MLCConvolutionDescriptor object.

pub unsafe fn convolutionTransposeDescriptorWithKernelSizes_inputFeatureChannelCount_outputFeatureChannelCount_groupCount_strides_dilationRates_paddingPolicy_paddingSizes( kernel_sizes: &NSArray<NSNumber>, input_feature_channel_count: NSUInteger, output_feature_channel_count: NSUInteger, group_count: NSUInteger, strides: &NSArray<NSNumber>, dilation_rates: &NSArray<NSNumber>, padding_policy: MLCPaddingPolicy, padding_sizes: Option<&NSArray<NSNumber>>, ) -> Retained<Self>

👎Deprecated

Available on crate feature MLCTypes only.

Create a MLCConvolutionDescriptor object for convolution transpose

Parameter kernelSizes: The kernel sizes in x and y

Parameter inputFeatureChannelCount: The number of feature channels in the input tensor

Parameter outputFeatureChannelCount: The number of feature channels in the output tensor

Parameter groupCount: Number of groups

Parameter strides: The kernel strides in x and y

Parameter dilationRates: The dilation rates in x and y

Parameter paddingPolicy: The padding policy

Parameter paddingSizes: The padding sizes in x and y if padding policy is MLCPaddingPolicyUsePaddingSIze

Returns: A new MLCConvolutionDescriptor object.

pub unsafe fn depthwiseConvolutionDescriptorWithKernelWidth_kernelHeight_inputFeatureChannelCount_channelMultiplier( kernel_width: NSUInteger, kernel_height: NSUInteger, input_feature_channel_count: NSUInteger, channel_multiplier: NSUInteger, ) -> Retained<Self>

👎Deprecated

Create a MLCConvolutionDescriptor object for depthwise convolution

Parameter kernelWidth: The kernel size in x

Parameter kernelHeight: The kernel size in x

Parameter inputFeatureChannelCount: The number of feature channels in the input tensor

Parameter channelMultiplier: The channel multiplier

Returns: A new MLCConvolutionDescriptor object.

pub unsafe fn depthwiseConvolutionDescriptorWithKernelSizes_inputFeatureChannelCount_channelMultiplier_strides_paddingPolicy_paddingSizes( kernel_sizes: &NSArray<NSNumber>, input_feature_channel_count: NSUInteger, channel_multiplier: NSUInteger, strides: &NSArray<NSNumber>, padding_policy: MLCPaddingPolicy, padding_sizes: Option<&NSArray<NSNumber>>, ) -> Retained<Self>

👎Deprecated

Available on crate feature MLCTypes only.

Create a MLCConvolutionDescriptor object for depthwise convolution

Parameter kernelSizes: The kernel sizes in x and y

Parameter inputFeatureChannelCount: The number of feature channels in the input tensor

Parameter channelMultiplier: The channel multiplier

Parameter strides: The kernel strides in x and y

Parameter paddingPolicy: The padding policy

Parameter paddingSizes: The padding sizes in x and y if padding policy is MLCPaddingPolicyUsePaddingSIze

Returns: A new MLCConvolutionDescriptor object.

pub unsafe fn depthwiseConvolutionDescriptorWithKernelSizes_inputFeatureChannelCount_channelMultiplier_strides_dilationRates_paddingPolicy_paddingSizes( kernel_sizes: &NSArray<NSNumber>, input_feature_channel_count: NSUInteger, channel_multiplier: NSUInteger, strides: &NSArray<NSNumber>, dilation_rates: &NSArray<NSNumber>, padding_policy: MLCPaddingPolicy, padding_sizes: Option<&NSArray<NSNumber>>, ) -> Retained<Self>

👎Deprecated

Available on crate feature MLCTypes only.

Create a MLCConvolutionDescriptor object for depthwise convolution

Parameter kernelSizes: The kernel sizes in x and y

Parameter inputFeatureChannelCount: The number of feature channels in the input tensor

Parameter channelMultiplier: The channel multiplier

Parameter strides: The kernel strides in x and y

Parameter dilationRates: The dilation rates in x and y

Parameter paddingPolicy: The padding policy

Parameter paddingSizes: The padding sizes in x and y if padding policy is MLCPaddingPolicyUsePaddingSIze

Returns: A new MLCConvolutionDescriptor object.

impl MLCConvolutionDescriptor

Methods declared on superclass NSObject.

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

pub unsafe fn new() -> 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

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 MLCConvolutionDescriptor

fn as_ref(&self) -> &AnyObject

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

impl AsRef<MLCConvolutionDescriptor> for MLCConvolutionDescriptor

fn as_ref(&self) -> &Self

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

impl AsRef<NSObject> for MLCConvolutionDescriptor

fn as_ref(&self) -> &NSObject

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

impl Borrow<AnyObject> for MLCConvolutionDescriptor

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<NSObject> for MLCConvolutionDescriptor

fn borrow(&self) -> &NSObject

Immutably borrows from an owned value.

impl ClassType for MLCConvolutionDescriptor

const NAME: &'static str = "MLCConvolutionDescriptor"

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

type Super = NSObject

The superclass of this class.

type ThreadKind = <<MLCConvolutionDescriptor 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 CopyingHelper for MLCConvolutionDescriptor

type Result = MLCConvolutionDescriptor

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

impl Debug for MLCConvolutionDescriptor

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

Formats the value using the given formatter.

impl Deref for MLCConvolutionDescriptor

type Target = NSObject

The resulting type after dereferencing.

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

Dereferences the value.

impl Hash for MLCConvolutionDescriptor

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 MLCConvolutionDescriptor

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

where Self: Sized,

Increment the reference count of the receiver.

impl NSCopying for MLCConvolutionDescriptor

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

where Self: Sized + Message + CopyingHelper,

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,

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

impl NSObjectProtocol for MLCConvolutionDescriptor

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 MLCConvolutionDescriptor

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 MLCConvolutionDescriptor

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

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

impl DowncastTarget for MLCConvolutionDescriptor

impl Eq for MLCConvolutionDescriptor