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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
import Foundation
/* A smarter ?? operator which allows the left hand/right hand arguments to not be
* the same type. This is useful where we want to print the string representation
* of an optional value that is not a string but want to return a string value when
* a value is absent.
*
* For more informatin, check out Oleb's post:
infix operator ???: NilCoalescingPrecedence
public func ??? <T> (optional: T?, defaultValue: @autoclosure () -> String) -> String {
return optional.map { String(describing: $0) } ?? defaultValue()
}