Struct block_sys::Block_byref_extended

source · [−]

#[repr(C)]pub struct Block_byref_extended {
    pub header: Block_byref_header,
    pub keep: Option<unsafe extern "C" fn(dst: *mut c_void, src: *mut c_void)>,
    pub destroy: Option<unsafe extern "C" fn(src: *mut c_void)>,
    pub layout: *const c_char,
}

Available on crate feature apple only.

Expand description

Structure used for on-stack variables that are referenced by blocks.

requires BLOCK_BYREF_LAYOUT_EXTENDED

Fields

header: Block_byref_headerkeep: Option<unsafe extern "C" fn(dst: *mut c_void, src: *mut c_void)>

Same as Block_byref::keep.

destroy: Option<unsafe extern "C" fn(src: *mut c_void)>

Same as Block_byref::destroy.

layout: *const c_char

Auto Trait Implementations

impl !RefUnwindSafe for Block_byref_extended

impl !Send for Block_byref_extended

impl !Sync for Block_byref_extended

impl Unpin for Block_byref_extended

impl !UnwindSafe for Block_byref_extended

Blanket Implementations

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> 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.

impl<T, U> TryFrom<U> 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<U>>::Error>

Performs the conversion.

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

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

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.