Struct objc2::runtime::Object

#[repr(C)]
pub struct Object(_);

A type that represents an instance of a class.

Note: This is intentionally neither Sync, Send, UnwindSafe, RefUnwindSafe nor Unpin, since it is something that changes depending on the specific subclass.

Examples: NSAutoreleasePool is not Send, it has to be deallocated on the same thread that it was created. NSLock is not Send either.

Implementations

impl Object

pub fn class(&self) -> &Class

Dynamically find the class of this object.

pub unsafe fn ivar<T: Encode>(&self, name: &str) -> &T

Returns a shared reference to the ivar with the given name.

Panics

Panics if the object has no ivar with the given name, or the type encoding of the ivar differs from the type encoding of T.

Safety

The caller must ensure that the ivar is actually of type T.

Library implementors should expose a safe interface to the ivar.

pub unsafe fn ivar_mut<T: Encode>(&mut self, name: &str) -> &mut T

Returns a mutable reference to the ivar with the given name.

Panics

Panics if the object has no ivar with the given name, or the type encoding of the ivar differs from the type encoding of T.

Safety

The caller must ensure that the ivar is actually of type T.

Library implementors should expose a safe interface to the ivar.

pub unsafe fn set_ivar<T: Encode>(&mut self, name: &str, value: T)

Sets the value of the ivar with the given name.

Panics

Panics if the object has no ivar with the given name, or the type encoding of the ivar differs from the type encoding of T.

Safety

The caller must ensure that the ivar is actually of type T.

Library implementors should expose a safe interface to the ivar.

Trait Implementations

impl Debug for Object

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

Formats the value using the given formatter.

impl RefEncode for Object

const ENCODING_REF: Encoding<'static>

The Objective-C type-encoding for a reference of this type.

impl Message for Object