func forEachLineLength()

in Sources/SwiftSyntax/SourceLocation.swift [423:459]
36 lines of code
8 McCabe index (conditional complexity)

  func forEachLineLength(
    prefix: SourceLength = .zero, body: (SourceLength) -> ()
  ) -> SourceLength {
    var lineLength = prefix
    switch self {
    case let .spaces(count),
         let .tabs(count),
         let .verticalTabs(count),
         let .formfeeds(count):
      lineLength += SourceLength(utf8Length: count)
    case let .newlines(count),
         let .carriageReturns(count):
      let newLineLength = SourceLength(utf8Length: 1)
      body(lineLength + newLineLength)
      for _ in 1..<count {
        body(newLineLength)
      }
      lineLength = .zero
    case let .carriageReturnLineFeeds(count):
      let carriageReturnLineLength = SourceLength(utf8Length: 2)
      body(lineLength + carriageReturnLineLength)
      for _ in 1..<count {
        body(carriageReturnLineLength)
      }
      lineLength = .zero
    case let .lineComment(text),
         let .docLineComment(text):
      // Line comments are not supposed to contain newlines.
      assert(!text.containsSwiftNewline(), "line comment created that contained a new-line character")
      lineLength += SourceLength(utf8Length: text.utf8.count)
    case let .blockComment(text),
         let .docBlockComment(text),
         let .garbageText(text):
      lineLength = text.forEachLineLength(prefix: lineLength, body: body)
    }
    return lineLength
  }