Struct block2::ConcreteBlock

#[repr(C)]
pub struct ConcreteBlock<A, R, F> { /* private fields */ }

An Objective-C block whose size is known at compile time and may be constructed on the stack.

Implementations

impl<A, R, F> ConcreteBlock<A, R, F> where
    A: BlockArguments + EncodeArguments,
    R: Encode,
    F: IntoConcreteBlock<A, Ret = R>, 

pub fn new(closure: F) -> Self

Constructs a ConcreteBlock with the given closure. When the block is called, it will return the value that results from calling the closure.

impl<A, R, F: 'static> ConcreteBlock<A, R, F>

pub fn copy(self) -> RcBlock<A, R>

Copy self onto the heap as an RcBlock.

Methods from Deref<Target = Block<A, R>>

pub unsafe fn call(&self, args: A) -> R

Call self with the given arguments.

Safety

This invokes foreign code that the caller must verify doesn’t violate any of Rust’s safety rules.

For example, if this block is shared with multiple references, the caller must ensure that calling it will not cause a data race.

Trait Implementations

impl<A, R, F: Clone> Clone for ConcreteBlock<A, R, F>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<A, R, F: Debug> Debug for ConcreteBlock<A, R, F>

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

Formats the value using the given formatter.

impl<A, R, F> Deref for ConcreteBlock<A, R, F>

type Target = Block<A, R>

The resulting type after dereferencing.

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

Dereferences the value.

impl<A: BlockArguments + EncodeArguments, R: Encode, F> RefEncode for ConcreteBlock<A, R, F>

const ENCODING_REF: Encoding<'static> = Encoding::Block

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