Vertical Parameter Alignment

Function parameters should be aligned vertically if they’re in multiple lines in a declaration

• Identifier: vertical_parameter_alignment
• Enabled by default: Yes
• Supports autocorrection: No
• Kind: style
• Analyzer rule: No
• Minimum Swift compiler version: 5.0.0
• Default configuration:

  Key	Value
  severity	warning

Non Triggering Examples

func validateFunction(_ file: SwiftLintFile, kind: SwiftDeclarationKind,
                      dictionary: SourceKittenDictionary) { }

func validateFunction(_ file: SwiftLintFile, kind: SwiftDeclarationKind,
                      dictionary: SourceKittenDictionary) -> [StyleViolation]

func foo(bar: Int)

func foo(bar: Int) -> String

func validateFunction(_ file: SwiftLintFile, kind: SwiftDeclarationKind,
                      dictionary: SourceKittenDictionary)
                      -> [StyleViolation]

func validateFunction(
   _ file: SwiftLintFile, kind: SwiftDeclarationKind,
   dictionary: SourceKittenDictionary) -> [StyleViolation]

func validateFunction(
   _ file: SwiftLintFile, kind: SwiftDeclarationKind,
   dictionary: SourceKittenDictionary
) -> [StyleViolation]

func regex(_ pattern: String,
           options: NSRegularExpression.Options = [.anchorsMatchLines,
                                                   .dotMatchesLineSeparators]) -> NSRegularExpression

func foo(a: Void,
         b: [String: String] =
         [:]) {
}

func foo(data: (size: CGSize,
                identifier: String)) {}

func foo(data: Data,
         @ViewBuilder content: @escaping (Data.Element.IdentifiedValue) -> Content) {}

class A {
    init(bar: Int)
}

class A {
    init(foo: Int,
         bar: String)
}

Triggering Examples

func validateFunction(_ file: SwiftLintFile, kind: SwiftDeclarationKind,
                  ↓dictionary: SourceKittenDictionary) { }

func validateFunction(_ file: SwiftLintFile, kind: SwiftDeclarationKind,
                       ↓dictionary: SourceKittenDictionary) { }

func validateFunction(_ file: SwiftLintFile,
                  ↓kind: SwiftDeclarationKind,
                  ↓dictionary: SourceKittenDictionary) { }

func foo(data: Data,
            ↓@ViewBuilder content: @escaping (Data.Element.IdentifiedValue) -> Content) {}

class A {
    init(data: Data,
                ↓@ViewBuilder content: @escaping (Data.Element.IdentifiedValue) -> Content) {}
}