Open Radar

 
Summary:
The compiler shipped with Xcode 5.1 introduced support for __attribute__((objc_designated_initializer)). Among other things, this attribute requires a designated initializer on a class to call a designated initializer on the class's superclass. Root classes are exempt from this requirement.

NSProxy, a root class, does not give any method the designated initializer attribute (nor does it even expose any initializer methods). This effectively disallows the use of the attribute on any NSProxy subclass. Please add a designated initializer to NSProxy so that subclasses can take advantage of this attribute.

Steps to Reproduce:
1. Create a new project
2. Create a new subclass of NSProxy
3. Add an initializer and mark it the designated initializer with __attribute__((objc_designated_initializer))

Expected Results:
I am able to call a designated initializer on NSProxy and avoid a compiler warning.

Actual Results:
NSProxy has no designated initializer; I get a compiler warning.