Struct objc2::runtime::Sel

source · [−]

#[repr(transparent)]
pub struct Sel { /* private fields */ }

Expand description

A method selector.

The Rust equivalent of Objective-C’s SEL type. You can easily create this using the sel! macro.

The main reason the Objective-C runtime uses a custom types for selectors is to support efficient comparison - a selector is effectively just an interned string, so this makes that very easy!

This guarantees the null-pointer optimization, namely that Option<Sel> is the same size as Sel.

Implementations

source

impl Sel

source

pub const fn as_ptr(&self) -> *const objc_selector

Get a pointer to the raw selector.

Useful when working with raw FFI methods.

source

pub fn register(name: &str) -> Self

Registers a selector with the Objective-C runtime.

This is the dynamic version of the sel! macro, prefer to use that when your selector is static.

Panics

Panics if name contains an internal NUL byte, or if the runtime failed allocating space for the selector.

source

pub fn name(&self) -> &str

Returns the string representation of the selector.

Panics

Panics if the selector is not valid UTF-8 (however unlikely!)

Trait Implementations

source

impl Clone for Sel

source

fn clone(&self) -> Sel

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

source

impl Debug for Sel

source

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

Formats the value using the given formatter. Read more

source

impl Encode for Sel

source

const ENCODING: Encoding = Encoding::Sel

The Objective-C type-encoding for this type.

source

impl Hash for Sel

source

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more

1.3.0 · source

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

Feeds a slice of this type into the given Hasher. Read more

source

impl PartialEq<Sel> for Sel

source

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

This method tests for self and other values to be equal, and is used by ==. Read more

1.0.0 · source

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. Read more

source

impl Pointer for Sel

source

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

Formats the value using the given formatter.

source

impl UnwindSafe for Sel

Auto Trait Implementations

impl Unpin for Sel

Blanket Implementations

source

impl<T> Any for T where
T: 'static + ?Sized,

source

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

source

impl<T> EncodeConvert for T where
T: Encode,

type __Inner = T

source

const __ENCODING: Encoding = Self::ENCODING

source

fn __from_inner(inner: <T as EncodeConvert>::__Inner) -> T

source

fn __into_inner(self) -> <T as EncodeConvert>::__Inner

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

source

impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

source

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

source

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

source

impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

source

impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct objc2::runtime::Sel

Implementations

impl Sel

pub const fn as_ptr(&self) -> *const objc_selector

pub fn register(name: &str) -> Self

pub fn name(&self) -> &str

Trait Implementations

impl Clone for Sel

fn clone(&self) -> Sel

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

impl Debug for Sel

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

impl Encode for Sel

const ENCODING: Encoding = Encoding::Sel

impl Hash for Sel

fn hash<__H: Hasher>(&self, state: &mut __H)

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher,

impl PartialEq<Sel> for Sel

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

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

impl Pointer for Sel

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

impl Copy for Sel

impl Eq for Sel

impl RefUnwindSafe for Sel

impl Send for Sel

impl StructuralEq for Sel

impl StructuralPartialEq for Sel

impl Sync for Sel

impl UnwindSafe for Sel

Auto Trait Implementations

impl Unpin for Sel

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> EncodeConvert for T where T: Encode,

type __Inner = T

const __ENCODING: Encoding = Self::ENCODING

fn __from_inner(inner: <T as EncodeConvert>::__Inner) -> T

fn __into_inner(self) -> <T as EncodeConvert>::__Inner

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

fn hash<H: Hasher>(&self, state: &mut H)

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T> EncodeConvert for T where
T: Encode,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,