in src/platform_impl/ios/ffi.rs [68:78]
fn encode() -> Encoding {
unsafe {
if cfg!(target_pointer_width = "32") {
Encoding::from_str("{CGRect={CGPoint=ff}{CGSize=ff}}")
} else if cfg!(target_pointer_width = "64") {
Encoding::from_str("{CGRect={CGPoint=dd}{CGSize=dd}}")
} else {
unimplemented!()
}
}
}