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sendoa/gist:5916356

Forked from JaviSoto/gist:5906004
Created July 3, 2013 08:28
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Set the designated initializer at compile time
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gistfile1.m
#define MSDesignatedInitializer(__SEL__) __attribute__((unavailable("Invoke the designated initializer `" # __SEL__ "` instead.")))
// Sample usage:
- (id)initWithObject:(id)object;
- (id)init MSDesignatedInitializer(initWithObject:); // <- This even gets auto-complete.
// Now calling init on this class would throw a warning.
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