Type Alias TwoArgBlock 

pub type TwoArgBlock = RcBlock<Box<dyn Fn(*mut c_void, *mut c_void) + Send>>;

Block type: void (^)(id, id)

Used for completion handlers: void (^)(MTL::Library*, NS::Error*)

Aliased Type

pub struct TwoArgBlock { /* private fields */ }

Implementations

impl TwoArgBlock

pub fn from_fn<F>(f: F) -> Self

where F: Fn(*mut c_void, *mut c_void) + Send + 'static,

Create a block from a closure taking two pointer arguments.

This matches the C++ pattern:

using NewLibraryCompletionHandler = void (^)(MTL::Library*, NS::Error*);