OBSEXTRuntimeExtensions.h
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//
// EXTRuntimeExtensions.h
// extobjc
//
// Created by Justin Spahr-Summers on 2011-03-05.
// Copyright (C) 2012 Justin Spahr-Summers.
// Released under the MIT license.
//
#import <objc/runtime.h>
/**
*Describes the memory management policy of a property.
*/
typedef enum {
/**
*The value is assigned.
*/
obs_mtl_propertyMemoryManagementPolicyAssign = 0,
/**
*The value is retained.
*/
obs_mtl_propertyMemoryManagementPolicyRetain,
/**
*The value is copied.
*/
obs_mtl_propertyMemoryManagementPolicyCopy
} obs_mtl_propertyMemoryManagementPolicy;
/**
*Describes the attributes and type information of a property.
*/
typedef struct {
/**
*Whether this property was declared with the \c readonly attribute.
*/
BOOL readonly;
/**
*Whether this property was declared with the \c nonatomic attribute.
*/
BOOL nonatomic;
/**
*Whether the property is a weak reference.
*/
BOOL weak;
/**
*Whether the property is eligible for garbage collection.
*/
BOOL canBeCollected;
/**
*Whether this property is defined with \c \@dynamic.
*/
BOOL dynamic;
/**
*The memory management policy for this property. This will always be
*#obs_mtl_propertyMemoryManagementPolicyAssign if #readonly is \c YES.
*/
obs_mtl_propertyMemoryManagementPolicy memoryManagementPolicy;
/**
*The selector for the getter of this property. This will reflect any
*custom \c getter= attribute provided in the property declaration, or the
*inferred getter name otherwise.
*/
SEL getter;
/**
*The selector for the setter of this property. This will reflect any
*custom \c setter= attribute provided in the property declaration, or the
*inferred setter name otherwise.
*
*@note If #readonly is \c YES, this value will represent what the setter
*\e would be, if the property were writable.
*/
SEL setter;
/**
*The backing instance variable for this property, or \c NULL if \c
*\c @synthesize was not used, and therefore no instance variable exists. This
*would also be the case if the property is implemented dynamically.
*/
const char *ivar;
/**
*If this property is defined as being an instance of a specific class,
*this will be the class object representing it.
*
*This will be \c nil if the property was defined as type \c id, if the
*property is not of an object type, or if the class could not be found at
*runtime.
*/
Class objectClass;
/**
*The type encoding for the value of this property. This is the type as it
*would be returned by the \c \@encode() directive.
*/
char type[];
} obs_mtl_propertyAttributes;
/**
*Returns a pointer to a structure containing information about \a property.
*You must \c free() the returned pointer. Returns \c NULL if there is an error
*obtaining information from \a property.
*/
obs_mtl_propertyAttributes *obs_mtl_copyPropertyAttributes (objc_property_t property);