A property wraps instance variables and methods together and add some semantics. The chief advantage of a property is, that it frees the user from writing accessors, which in turn makes AAM and other simplifications possible.
char *mulle_objc_property_get_name( struct _mulle_objc_property *property)
Get the name of the property. The returned string's lifetime is that of the property. Don't free it.
char *mulle_objc_property_get_signature( struct _mulle_objc_property *property)
Get the signature of the property. This is not the same as the signature of the instance variable. The returned string's lifetime is that of the property. Don't free it.
mulle_objc_propertyid_t mulle_objc_property_get_propertyid( struct _mulle_objc_property *property)
Get the propertyid of the property.
mulle_objc_methodid_t mulle_objc_property_get_getter( struct _mulle_objc_property *property)
Get the methodid of the "getter" for the property.
mulle_objc_methodid_t mulle_objc_property_get_setter( struct _mulle_objc_property *property)
Get the methodid of the "setter" for the property. This may be MULLE_OBJC_NO_METHODID if the property is read-only and therefore has no setter. Read-only properties are rarely a good idea.
This is a list of properties (not a list of pointers to properties). It is read only: once created and added to the runtime it must not be modified.
int mulle_objc_propertylist_walk( struct _mulle_objc_propertylist *list,
int (*f)( struct _mulle_objc_property *, struct _mulle_objc_class *, void *),
struct _mulle_objc_class *cls,
void *userinfo)
Iterate over a propertylist calling a callback for each property in it.
| Parameter | Description |
|---|---|
list |
The propertylist to walk |
f |
Your callback function. mulle_objc_propertylist_walk will stop, when f returns a value that is not zero. This value will be returned by mulle_objc_propertylist_walk. |
cls |
This will be passed to the callback function |
userinfo |
This will also be passed to the callback function |
This is basically the same as mulle_objc_methodlist_walk so check that documentation for an example, how to use it.
struct _mulle_objc_propertylistenumerator mulle_objc_propertylist_enumerate( struct _mulle_objc_propertylist *list)
Enumerate a propertylist. list may be NULL.
struct _mulle_objc_property *mulle_objc_propertylistenumerator_next( struct _mulle_objc_propertylistenumerator *rover)
Get the next property from the enumerator. Returns NULL if done.
void mulle_objc_propertylistenumerator_done( struct _mulle_objc_propertylistenumerator *rover)
Mark the end of the lifetime of the enumerator. This is merely conventional.