Struct block_sys::Block_descriptor_with_signature

#[repr(C)]pub struct Block_descriptor_with_signature {
    pub header: Block_descriptor_header,
    pub copy: Option<unsafe extern "C" fn(dst: *mut c_void, src: *mut c_void)>,
    pub dispose: Option<unsafe extern "C" fn(src: *mut c_void)>,
    pub encoding: *const c_char,
}

👎Deprecated: block-sys is deprecated. Use block2::ffi instead

Expand description

Requires BLOCK_HAS_COPY_DISPOSE and BLOCK_HAS_SIGNATURE

Fields§

§header: Block_descriptor_header

👎Deprecated: block-sys is deprecated. Use block2::ffi instead

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

👎Deprecated: block-sys is deprecated. Use block2::ffi instead

Same as Block_descriptor::copy.

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

👎Deprecated: block-sys is deprecated. Use block2::ffi instead

Same as Block_descriptor::dispose.

§encoding: *const c_char

👎Deprecated: block-sys is deprecated. Use block2::ffi instead

Objective-C type encoding of the block.

Auto Trait Implementations§

impl RefUnwindSafe for Block_descriptor_with_signature

impl !Send for Block_descriptor_with_signature

impl !Sync for Block_descriptor_with_signature

impl Unpin for Block_descriptor_with_signature

impl UnwindSafe for Block_descriptor_with_signature

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,

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Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

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.

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.

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

Performs the conversion.