Struct GlobalBlock 

pub struct GlobalBlock<F: ?Sized> { /* private fields */ }

A global Objective-C block that does not capture an environment.

This can be used as an optimization of RcBlock if your closure doesn’t capture any variables.

This is a smart pointer that Derefs to Block.

It can created and stored in static memory using the global_block! macro.

Methods from Deref<Target = Block<F>>

pub fn copy(&self) -> RcBlock<F>

Copy the block onto the heap as an RcBlock.

The behaviour of this function depends on whether the block is from a RcBlock or a StackBlock. In the former case, it will bump the reference-count (just as-if you’d Clone’d the RcBlock), in the latter case it will construct a new RcBlock from the StackBlock.

This distinction should not matter, except for micro-optimizations.

pub fn call(&self, args: F::Args) -> F::Output

where F: BlockFn,

Call the block.

The arguments must be passed as a tuple. The return is the output of the block.

Trait Implementations

impl<F: ?Sized> Debug for GlobalBlock<F>

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

Formats the value using the given formatter.

impl<F: ?Sized + BlockFn> Deref for GlobalBlock<F>

type Target = Block<F>

The resulting type after dereferencing.

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

Dereferences the value.

impl<F: ?Sized + BlockFn> Send for GlobalBlock<F>

impl<F: ?Sized + BlockFn> Sync for GlobalBlock<F>