gistfile1.swift

var myInt       : Int       = 20;
var myNSNumber  : NSNumber  = myInt; // Implicit conversion to NSNumber
var my2NSNumber : NSNumber  = 20;    // Implicit conversion to NSNumber

// Methods defined in Swift with signature :
// func testOfImplicitNSNumberConversion(number : NSNumber)
self.testOfImplicitNSNumberConversion(myInt);
self.testOfImplicitNSNumberConversion(20);


// Bridged Objective-C method with signature :
// - (void)incrementKey:(NSString *)key byAmount:(NSNumber *)amount;
task.incrementKey("Yo", byAmount: myInt);  // Implicit conversion to NSNumber
task.incrementKey("Yo", byAmount: 20);     // Implicit conversion to NSNumber