A stack for gathering function names and printing them in a scope-level conscious fashion

ScopedPrintableStack.swift

import Foundation

struct ScopedPrintableStack: CustomStringConvertible
{
    var items = [String]()
    
    var description: String
    {
        var tabbedStackString:String = ""
        for (index, string) in items.enumerated()
        {
            tabbedStackString += String(repeating: "\t", count: index) + string + "\n"
        }
        return tabbedStackString
    }
    
    var count:Int
    {
        return items.count
    }
    
    mutating func push(_ item: String)
    {
        items.append(item)
    }
    mutating func pop() -> String
    {
        return items.removeLast()
    }
    mutating func popToss()
    {
        _ = self.pop()
    }
    func peek() -> String?
    {
        return items.last
    }
    
}

Purposely made this non-generic so I won't use it for other purposes in other code, forgetting about the unique way it prints.