Add '/' -operator overloading to append a FilePath to another

[CodebyCR]

Motivation

I write a CLI Tool and use some FilePath structs, but I think the current way to concatenated FilePaths is a way less readable & 'swifty' than it could be.
I remember the C++ 17 Filesystem Path Library which supports a overloading for the '/=' - operator to append a path to another.

The Swift FilePath Struct doesn't support any operator overloadings.
I think this possibility can smooth up the C++ Interoperability and make the syntax more readable.

The Problem in Code

    import System

    // Defined in another File for project configuration
    let homePath: FilePath = "/ProjectHome"
    let userDirectory: FilePath = "SomeUser"

    // The current ways

    // solution 1
    let userPath1 = FilePath("\(homePath)/\(userDirectory)")

    // solution 2
    let userPath2 = homePath.appending(userDirectory.components)

    // solution 3 (if userDirectory is a String)
    let userPath3 = homePath.appending(userDirectory)

Proposed solution

I wrote an extension to overload the '/' - operator. This also uses the 'appending' Function, but hides the superfluous syntax. So the path appending can be red like a Unix path.

The Extension

  public extension FilePath {
      static func / (firstPart: FilePath, pathPart: FilePath) -> FilePath {
          return firstPart.appending(pathPart.components)
      }
  }

Now I can write the path appending in this way:

Solution

  let userPath = homePath / userDirectory
  let userLogPath = homePath / userDirectory / "Logs"

Alternatives considered

An other approach would be the takeover of the C++ like '/='-operator overloading.

  var userPath = homePath
  userPath /= userDirectory

This isn't my preferred solution, because I think it isn't easier to read and this approach required a mutable FilePath struct.

Additional information

The URL could maybe also be extended in this way. Other Path-Based structs, classes also, but I don't know if it continues.

[tayloraswift]

FYI, the swift-io package provides this API, in a lightweight overlay module SystemIO

[CodebyCR]

@tayloraswift that's nice to know, but the intention is to get this functionality native.

Otherwise an extension is a way better solution instead of adding a dependency for this single enhancement.