Subclass support objects for CoreFoundation object.

In Foundation.framework, there is some classes not implemented in Foundation. They are implemented in CoreFoundation and wrapped like Objective-C object.

This helps boost Foundation.framework being fast, but subclassing these classes makes some problem. FoundationExtension supports subclass-available interface for these objects.

These classes are filling missing part of Foundation implementation with an original class object. You can subclass this and implement your own features, rather than adding purpose-specific categories. Additional variables are available easily too.

See also

NSAArray

NSAMutableArray

NSADictionary

NSAMutableDictionary

NSAString

NSAMutableString