objc2/runtime/
nsproxy.rs

1//! Defined here instead of in `objc2-foundation` since it's a root object,
2//! and the `extern_class!` macro doesn't support those (yet).
3use core::fmt;
4use core::hash;
5
6use crate::runtime::{AnyClass, AnyObject, NSObjectProtocol, ProtocolObject};
7use crate::{extern_conformance, AnyThread, ClassType, DowncastTarget};
8
9/// An abstract superclass defining an API for objects that act as
10/// stand-ins for other objects or for objects that don’t exist yet.
11///
12/// See [Apple's documentation][apple-doc] for more information.
13///
14/// [apple-doc]: https://developer.apple.com/documentation/foundation/nsproxy?language=objc
15#[repr(C)]
16pub struct NSProxy {
17    __superclass: AnyObject,
18}
19
20crate::__extern_class_impl_traits! {
21    ()
22    (unsafe impl)
23    (NSProxy)
24    (AnyObject)
25}
26
27unsafe impl ClassType for NSProxy {
28    type Super = AnyObject;
29    type ThreadKind = dyn AnyThread;
30    const NAME: &'static str = "NSProxy";
31
32    #[inline]
33    fn class() -> &'static AnyClass {
34        crate::__class_inner!("NSProxy", "NSProxy")
35    }
36
37    #[inline]
38    fn as_super(&self) -> &Self::Super {
39        &self.__superclass
40    }
41
42    const __INNER: () = ();
43
44    // We don't know anything about NSProxy's thread safety, so we don't do
45    // the same workaround for that as we do for NSObject.
46    type __SubclassingType = Self;
47}
48
49unsafe impl DowncastTarget for NSProxy {}
50
51extern_conformance!(
52    unsafe impl NSObjectProtocol for NSProxy {}
53);
54
55impl PartialEq for NSProxy {
56    #[inline]
57    #[doc(alias = "isEqual:")]
58    fn eq(&self, other: &Self) -> bool {
59        self.isEqual(Some(other))
60    }
61}
62
63impl Eq for NSProxy {}
64
65impl hash::Hash for NSProxy {
66    #[inline]
67    fn hash<H: hash::Hasher>(&self, state: &mut H) {
68        <NSProxy as NSObjectProtocol>::hash(self).hash(state);
69    }
70}
71
72impl fmt::Debug for NSProxy {
73    #[inline]
74    #[doc(alias = "description")]
75    #[doc(alias = "debugDescription")]
76    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
77        let obj: &ProtocolObject<dyn NSObjectProtocol> = ProtocolObject::from_ref(self);
78        obj.fmt(f)
79    }
80}
objc2/runtime/nsproxy.rs

objc2/runtime/
nsproxy.rs
