Difference between Printable and DebugPrintable in Swift

Question

Looking for a Swift equivalent of Cocoa\'s description, I found the following protocols in Swift: Printable and DebugPrintable.

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Answer 1

I believe the main difference is the property that's used to print. Printable has description and DebugPrintable has debugDescription:

https://stackoverflow.com/a/24254220/887210

https://developer.apple.com/library/prerelease/ios/documentation/General/Reference/SwiftStandardLibraryReference/Printable.html#//apple_ref/doc/uid/TP40014608-CH11-SW1

Edit:

Apparently print() and println() don't work properly with Printable and DebugPrintable:

struct TestPrintable : Printable {
  var description: String { return "Testing Printable" }
}

struct TestDebugPrintable : DebugPrintable {
  var debugDescription: String { return "Testing DebugPrintable" }
}

println(TestPrintable())      // -> "__lldb_expr_42.TestPrintable"
println(TestDebugPrintable()) // -> "__lldb_expr_42.TestDebugPrintable"

More information about this:

http://vperi.com/2014/06/04/textual-representation-for-classes-in-swift/