CODEWITHSUNDEEP
iosobjective-c
ahmdx
ahmdx

Reputation: 901

Forward declaration and parametrized classes

I have a parameterized class let us call it ParameterizedClass. When I use it in a header file using forward declaration (@class ParameterizedClass;) the compiler outputs this error Type arguments cannot be applied to non-parameterized class 'ParameterizedClass' if I declare a property ParameterizedClass<Type>.

How can I use parameters while still using forward declaration without importing the class's header?

Upvotes: 1

Views: 379

Answers (1)

AnderCover
AnderCover

Reputation: 2661

If I understand correctly you're trying to declare a property of type ParameterizedClass<Type> in your header and the compiler complains because all the only declaration of ParameterizedClass it knows is non-parameterized (i.e. @class ParameterizedClass;.)

I suggest you change your forward declaration to @class ParameterizedClass<T>;

You'll then be able to declare your property : @property (strong, nonatomic) ParameterizedClass<Type *> * property;

Upvotes: 1

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