Crate objc_sys

Raw bindings to Objective-C runtimes

These bindings contain almost no documentation, so it is highly recommended to read the documentation of the original libraries:

• Apple’s official documentation.
• Apple’s objc4 source code, in particular runtime.h.
• GNUStep’s libobjc2 source code, in particular runtime.h.

See also the README.md for more background information, and for how to configure the desired runtime.

Structs

• objc_class
  An opaque type that represents an Objective-C class.
• objc_ivar
  An opaque type that represents an instance variable.
• objc_method
  A type that represents a method in a class definition.
• objc_method_description
  Describes an Objective-C method.
• objc_object
  An opaque type that represents an object / an instance of a class.
• objc_property
  An opaque type that describes a property in a class.
• objc_property_attribute_t
  Describes an Objective-C property attribute.
• objc_protocol
  Opaque type for Objective-C protocols.
• objc_selector
  An opaque type that represents a method selector.
• objc_super
  Specifies data used when sending messages to superclasses.

Constants

• NO
  The equivalent of false for Objective-C’s BOOL type.
• NSIntegerMax
  The maximum value for an NSInteger.
• NSIntegerMin
  The minimum value for an NSInteger.
• NSUIntegerMax
  The maximum value for an NSUInteger.
• Nil
  A quick alias for a null_mut class.
• OBJC_ASSOCIATION_ASSIGN
• OBJC_ASSOCIATION_COPY
• OBJC_ASSOCIATION_COPY_NONATOMIC
• OBJC_ASSOCIATION_RETAIN
• OBJC_ASSOCIATION_RETAIN_NONATOMIC
• OBJC_SYNC_NOT_INITIALIZED
  Only relevant before macOS 10.13
• OBJC_SYNC_NOT_OWNING_THREAD_ERROR
• OBJC_SYNC_SUCCESS
• OBJC_SYNC_TIMED_OUT
  Only relevant before macOS 10.13
• YES
  The equivalent of true for Objective-C’s BOOL type.
• nil
  A quick alias for a null_mut object / instance.

Functions

• _objc_msgForward^⚠
• _objc_msgForward_stret^⚠
• class_addIvar^⚠
• class_addMethod^⚠
• class_addProperty^⚠
• class_addProtocol^⚠
• class_conformsToProtocol^⚠
• class_copyIvarList^⚠
• class_copyMethodList^⚠
• class_copyPropertyList^⚠
• class_copyProtocolList^⚠
• class_createInstance^⚠
• class_getClassMethod^⚠
• class_getClassVariable^⚠
• class_getImageName^⚠
• class_getInstanceMethod^⚠
• class_getInstanceSize^⚠
• class_getInstanceVariable^⚠
• class_getIvarLayout^⚠
• class_getMethodImplementation^⚠
• class_getMethodImplementation_stret^⚠
• class_getName^⚠
• class_getProperty^⚠
• class_getSuperclass^⚠
• class_getVersion^⚠
• class_getWeakIvarLayout^⚠
• class_isMetaClass^⚠
• class_replaceMethod^⚠
• class_replaceProperty^⚠
• class_respondsToSelector^⚠
• class_setIvarLayout^⚠
• class_setVersion^⚠
• class_setWeakIvarLayout^⚠
• imp_getBlock^⚠
• imp_implementationWithBlock^⚠
• imp_removeBlock^⚠
• ivar_getName^⚠
• ivar_getOffset^⚠
• ivar_getTypeEncoding^⚠
• method_copyArgumentType^⚠
• method_copyReturnType^⚠
• method_exchangeImplementations^⚠
• method_getArgumentType^⚠
• method_getDescription^⚠
• method_getImplementation^⚠
• method_getName^⚠
• method_getNumberOfArguments^⚠
• method_getReturnType^⚠
• method_getTypeEncoding^⚠
• method_invoke^⚠
• method_invoke_stret^⚠
• method_setImplementation^⚠
• objc_addExceptionHandler^⚠
• objc_allocateClassPair^⚠
• objc_allocateProtocol^⚠
• objc_autorelease^⚠
• objc_autoreleasePoolPop^⚠
• objc_autoreleasePoolPush^⚠
• objc_autoreleaseReturnValue^⚠
• objc_begin_catch^⚠
• objc_constructInstance^⚠Deprecated
• objc_copyClassList^⚠
• objc_copyClassNamesForImage^⚠
• objc_copyImageNames^⚠
• objc_copyProtocolList^⚠
• objc_copyWeak^⚠
• objc_destroyWeak^⚠
• objc_destructInstance^⚠Deprecated
• objc_disposeClassPair^⚠
• objc_duplicateClass^⚠
• objc_end_catch^⚠
• objc_enumerationMutation^⚠
• objc_exception_rethrow^⚠
• objc_exception_throw^⚠
  See objc-exception.h.
• objc_exception_try_enter^⚠
• objc_exception_try_exit^⚠
• objc_getAssociatedObject^⚠
• objc_getClass^⚠
• objc_getClassList^⚠
• objc_getFutureClass^⚠Deprecated
• objc_getMetaClass^⚠
• objc_getProtocol^⚠
• objc_getRequiredClass^⚠
• objc_initWeak^⚠
• objc_loadWeak^⚠
• objc_loadWeakRetained^⚠
• objc_lookUpClass^⚠
• objc_moveWeak^⚠
• objc_msgSend^⚠
• objc_msgSendSuper^⚠
• objc_msgSendSuper_stret^⚠
• objc_msgSend_fp2ret^⚠
• objc_msgSend_fpret^⚠
• objc_msgSend_stret^⚠
• objc_msg_lookup^⚠
• objc_msg_lookup_stret^⚠
• objc_msg_lookup_super^⚠
• objc_msg_lookup_super_stret^⚠
• objc_registerClassPair^⚠
• objc_registerProtocol^⚠
• objc_release^⚠
• objc_removeAssociatedObjects^⚠
• objc_removeExceptionHandler^⚠
• objc_retain^⚠
• objc_retainAutorelease^⚠
• objc_retainAutoreleaseReturnValue^⚠
• objc_retainAutoreleasedReturnValue^⚠
• objc_retainBlock^⚠
• objc_setAssociatedObject^⚠
• objc_setEnumerationMutationHandler^⚠
• objc_setExceptionMatcher^⚠
• objc_setExceptionPreprocessor^⚠
• objc_setForwardHandler^⚠
• objc_setUncaughtExceptionHandler^⚠
• objc_storeStrong^⚠
• objc_storeWeak^⚠
• objc_sync_enter^⚠
• objc_sync_exit^⚠
• object_copy^⚠Deprecated
• object_dispose^⚠Deprecated
• object_getClass^⚠
• object_getClassName^⚠
• object_getIndexedIvars^⚠
• object_getInstanceVariable^⚠Deprecated
• object_getIvar^⚠
• object_setClass^⚠
• object_setInstanceVariable^⚠Deprecated
• object_setIvar^⚠
• property_copyAttributeList^⚠
• property_copyAttributeValue^⚠
• property_getAttributes^⚠
• property_getName^⚠
• protocol_addMethodDescription^⚠
• protocol_addProperty^⚠
• protocol_addProtocol^⚠
• protocol_conformsToProtocol^⚠
• protocol_copyMethodDescriptionList^⚠
• protocol_copyPropertyList^⚠
• protocol_copyProtocolList^⚠
• protocol_getMethodDescription^⚠
• protocol_getName^⚠
• protocol_getProperty^⚠
• protocol_isEqual^⚠
• sel_getName^⚠
• sel_getUid^⚠
• sel_isEqual^⚠
• sel_isMapped^⚠
• sel_registerName^⚠

Type Definitions

• BOOL
  The Objective-C BOOL type.
• IMP
  A nullable pointer to the start of a method implementation.
• NSInteger
  A signed integer value type.
• NSUInteger
  Describes an unsigned integer.
• SEL
  An immutable pointer to a selector.
• id
  A mutable pointer to an object / instance.
• objc_AssociationPolicy
• objc_exception_handler
  Remember that this is non-null!
• objc_exception_matcher
  Remember that this is non-null!
• objc_exception_preprocessor
  Remember that this is non-null!
• objc_uncaught_exception_handler
  Remember that this is non-null!