Struct objc2_foundation::NSMapTableValueCallBacks

#[repr(C)]
pub struct NSMapTableValueCallBacks {
    pub retain: Option<unsafe extern "C" fn(_: NonNull<NSMapTable>, _: NonNull<c_void>)>,
    pub release: Option<unsafe extern "C" fn(_: NonNull<NSMapTable>, _: NonNull<c_void>)>,
    pub describe: Option<unsafe extern "C" fn(_: NonNull<NSMapTable>, _: NonNull<c_void>) -> *mut NSString>,
}

Available on crate features NSMapTable and NSString only.

Fields

retain: Option<unsafe extern "C" fn(_: NonNull<NSMapTable>, _: NonNull<c_void>)>

release: Option<unsafe extern "C" fn(_: NonNull<NSMapTable>, _: NonNull<c_void>)>

describe: Option<unsafe extern "C" fn(_: NonNull<NSMapTable>, _: NonNull<c_void>) -> *mut NSString>

Trait Implementations

impl Clone for NSMapTableValueCallBacks

fn clone(&self) -> NSMapTableValueCallBacks

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for NSMapTableValueCallBacks

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

Formats the value using the given formatter.

impl Encode for NSMapTableValueCallBacks

const ENCODING: Encoding = _

The Objective-C type-encoding for this type.

impl PartialEq for NSMapTableValueCallBacks

fn eq(&self, other: &NSMapTableValueCallBacks) -> 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 RefEncode for NSMapTableValueCallBacks

const ENCODING_REF: Encoding = _

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

impl Copy for NSMapTableValueCallBacks

impl StructuralPartialEq for NSMapTableValueCallBacks