selector

Use this attribute to attach an Objective-C selector to a method.

This is a special compiler recognized attribute, it has several requirements, which all will be enforced by the compiler:

  • The attribute can only be attached to methods or constructors which have Objective-C linkage. That is, a method or a constructor in a class or interface declared as
    extern(Objective-C)
    .
  • ,

  • It cannot be attached to a method or constructor that is a template
  • ,

  • The number of colons in the string need to match the number of arguments the method accept.
  • ,

  • It can only be used once in a method declaration
version(UdaSelector)
struct selector {
string selector;
}

Examples

1 extern (Objective-C)
2 class NSObject
3 {
4 this() @selector("init");
5 static NSObject alloc() @selector("alloc");
6 NSObject initWithUTF8String(in char* str) @selector("initWithUTF8String:");
7 ObjcObject copyScriptingValue(ObjcObject value, NSString key, NSDictionary properties)
8     @selector("copyScriptingValue:forKey:withProperties:");
9 }
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