func _sourceLink()

in Sources/CollectionsBenchmark/Benchmark/Benchmark+Links.swift [35:45]

• 10 lines of code
• 1 McCabe index (conditional complexity)

  func _sourceLink(base: URL) -> URL? {
    var file = Substring(self.file.description)
    guard let prefix = packageBuildRoot(for: file.base) else { return nil }
    guard file.starts(with: prefix) else { return nil }
    file = file.dropFirst(prefix.count)
    guard file.starts(with: "/") else { return nil }
    file = file.dropFirst()
    let url = base.appendingPathComponent(String(file))
    // FIXME: URL doesn't let us set the fragment.
    return URL(string: "\(url.relativeString)#L\(line)")
  }