Suppose I have an existing enum in Obj-C such as:
typedef NS_OPTIONS(NSInteger, FoodType)
{
dairyFood = 1 << 0,
meatFood = 1 << 1,
mushroomFood = 1 << 2
};
I want to rename all the values so that swift code can use the shorter names.
i.e
typedef NS_OPTIONS(NSInteger, FoodType)
{
FoodDairy = 1 << 0,
FoodMeat = 1 << 1,
FoodMushroom = 1 << 2
};
generates:
public struct FoodType : OptionSetType {
public init(rawValue: Int)
public static var Dairy: FoodType { get }
public static var Meat: FoodType { get }
public static var Mushroom: FoodType { get }
}
But I still want the old names so as not to have to update all of the existing
Obj-C code and mess up my SVN history.
At first I thought this would suffice:
typedef NS_OPTIONS(NSInteger, FoodType)
{
FoodDairy = 1 << 0,
FoodMeat = 1 << 1,
FoodMushroom = 1 << 2,
// Old names
dairyFood = FoodDairy,
meatFood = FoodMeat,
mushroomFood = FoodMushroom
};
but that prevents the generated interface using the shortened names since all
the values don’t follow the same pattern:
public struct FoodType : OptionSetType {
public init(rawValue: Int)
public static var FoodDairy: FoodType { get }
public static var FoodMeat: FoodType { get }
public static var FoodMushroom: FoodType { get }
public static var dairyFood: FoodType { get }
public static var meatFood: FoodType { get }
public static var mushroomFood: FoodType { get }
}
I was looking for something similar to NS_SWIFT_UNAVAILABLE such that I could
do:
typedef NS_OPTIONS(NSInteger, FoodType)
{
FoodDairy = 1 << 0,
FoodMeat = 1 << 1,
FoodMushroom = 1 << 2,
// Old names
dairyFood = FoodDairy NS_SWIFT_UNAVAILABLE,
meatFood = FoodMeat NS_SWIFT_UNAVALIBLE,
mushroomFood = FoodMushroom NS_SWIFT_UNAVAILABLE
};
but NS_SWIFT_UNAVAILABLE can’t be used in this case.
So the only thing I seem to be able to do is #define the old names to the new
names:
#define dairyFood FoodDairy
etc etc
which hides them from the generated interface, but exposes those defines to the
rest of the code and in a few cases caused unwanted substitutions to happen.
Is a non-#define way of doing this possible?
Cheers
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