multiline_parameters.md

Pattern: Use of multi-line parameter

Issue: -

Description

Functions and methods parameters should be either on the same line, or one per line.

Examples of correct code:

func foo() { }


func foo(param1: Int) { }


func foo(param1: Int, param2: Bool) { }


func foo(param1: Int, param2: Bool, param3: [String]) { }


func foo(param1: Int,
         param2: Bool,
         param3: [String]) { }

Examples of incorrect code:

func ↓foo(_ param1: Int,
          param2: Int, param3: Int) -> (Int) -> Int {
   return { x in x + param1 + param2 + param3 }
}


protocol Foo {
   func ↓foo(param1: Int,
             param2: Bool, param3: [String]) { }
}


protocol Foo {
   func ↓foo(param1: Int, param2: Bool,
             param3: [String]) { }
}


protocol Foo {
   static func ↓foo(param1: Int,
                    param2: Bool, param3: [String]) { }
}


protocol Foo {
   static func ↓foo(param1: Int, param2: Bool,
                    param3: [String]) { }
}

Further Reading

• SwiftLint - Multiline Parameters