#[repr(C)]pub struct AnyClass(_);Expand description
A type that represents an Objective-C class.
This is an opaque type meant to be used behind a shared reference
&AnyClass, which is semantically equivalent to Class _Nonnull.
A nullable class can be used as Option<&AnyClass>.
Implementations§
source§impl AnyClass
impl AnyClass
sourcepub fn get(name: &str) -> Option<&'static Self>
pub fn get(name: &str) -> Option<&'static Self>
Returns the class definition of a specified class, or None if the
class is not registered with the Objective-C runtime.
sourcepub fn classes() -> Malloc<[&'static Self]>
Available on crate feature malloc only.
pub fn classes() -> Malloc<[&'static Self]>
malloc only.Obtains the list of registered class definitions.
sourcepub fn classes_count() -> usize
pub fn classes_count() -> usize
Returns the total number of registered classes.
sourcepub fn superclass(&self) -> Option<&AnyClass>
pub fn superclass(&self) -> Option<&AnyClass>
Returns the superclass of self, or None if self is a root class.
sourcepub fn instance_size(&self) -> usize
pub fn instance_size(&self) -> usize
Returns the size of instances of self.
sourcepub fn instance_method(&self, sel: Sel) -> Option<&Method>
pub fn instance_method(&self, sel: Sel) -> Option<&Method>
Returns a specified instance method for self, or None if self and
its superclasses do not contain an instance method with the specified
selector.
sourcepub fn class_method(&self, sel: Sel) -> Option<&Method>
pub fn class_method(&self, sel: Sel) -> Option<&Method>
Returns a specified class method for self, or None if self and
its superclasses do not contain a class method with the specified
selector.
Same as cls.metaclass().class_method().
sourcepub fn instance_variable(&self, name: &str) -> Option<&Ivar>
pub fn instance_variable(&self, name: &str) -> Option<&Ivar>
Returns the ivar for a specified instance variable of self, or
None if self has no ivar with the given name.
sourcepub fn instance_methods(&self) -> Malloc<[&Method]>
Available on crate feature malloc only.
pub fn instance_methods(&self) -> Malloc<[&Method]>
malloc only.Describes the instance methods implemented by self.
sourcepub fn conforms_to(&self, proto: &AnyProtocol) -> bool
pub fn conforms_to(&self, proto: &AnyProtocol) -> bool
Checks whether this class conforms to the specified protocol.
sourcepub fn adopted_protocols(&self) -> Malloc<[&AnyProtocol]>
Available on crate feature malloc only.
pub fn adopted_protocols(&self) -> Malloc<[&AnyProtocol]>
malloc only.Get a list of the protocols to which this class conforms.
sourcepub fn instance_variables(&self) -> Malloc<[&Ivar]>
Available on crate feature malloc only.
pub fn instance_variables(&self) -> Malloc<[&Ivar]>
malloc only.Describes the instance variables declared by self.
sourcepub fn responds_to(&self, sel: Sel) -> bool
pub fn responds_to(&self, sel: Sel) -> bool
Check whether instances of this class respond to the given selector.
This doesn’t call respondsToSelector:, but works entirely within the
runtime, which means it’ll always be safe to call, but may not return
exactly what you’d expect if respondsToSelector: has been
overwritten.
That said, it will always return true if an instance of the class
responds to the selector, but may return false if they don’t
directly (e.g. does so by using forwarding instead).
sourcepub fn verify_sel<A, R>(&self, sel: Sel) -> Result<(), VerificationError>where
A: EncodeArguments,
R: EncodeConvertReturn,
pub fn verify_sel<A, R>(&self, sel: Sel) -> Result<(), VerificationError>where A: EncodeArguments, R: EncodeConvertReturn,
Verify argument and return types for a given selector.
This will look up the encoding of the method for the given selector
and return a VerificationError if any encodings differ for the
arguments A and return type R.
Example
let cls = class!(NSObject);
let sel = sel!(isKindOfClass:);
// Verify that `isKindOfClass:`:
// - Exists on the class
// - Takes a class as a parameter
// - Returns a BOOL
let result = cls.verify_sel::<(&AnyClass,), bool>(sel);
assert!(result.is_ok());