rust-objc

The `msg_send!` macro provides a Rust-like syntax for Objective-C method calls, reducing boilerplate and error-prone raw FFI code, as shown in the README examples for messaging objects like NSObject.

Offers `StrongPtr` and `WeakPtr` for automatic reference counting, ensuring safe memory handling of Objective-C objects without manual retain/release, with examples in the reference counting section.

Allows declaring new Objective-C classes from Rust with `ClassDecl`, enabling integration and extension of Objective-C ecosystems, demonstrated by creating a custom MyNumber class with ivars and methods.

Includes features like exception handling and message type verification to prevent unsafe unwinding and ensure type correctness, though they require explicit enabling via cargo features.