Function Name Whitespace

There should be consistent whitespace before and after function names and generic parameters.

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

  Key	Value
  severity	warning
  generic_spacing	no_space

Non Triggering Examples

func abc(lhs: Int, rhs: Int) -> Int {}

func <| (lhs: Int, rhs: Int) -> Int {}

func <|< <A>(lhs: A, rhs: A) -> A {}

func <| /* comment */ (lhs: Int, rhs: Int) -> Int {}

func <|< /* comment */ <A>(lhs: A, rhs: A) -> A {}

func <|< <A> /* comment */ (lhs: A, rhs: A) -> A {}

func <| /* comment */ <T> /* comment */ (lhs: T, rhs: T) -> T {}

//
// generic_spacing: no_space
//

func abc<T>(lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: leading_space
//

func abc <T>(lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: trailing_space
//

func abc<T> (lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: leading_space
//

func abc <T>(lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: leading_space
//

func abc /* comment */ <T> /* comment */ (lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: trailing_space
//

func abc /* comment */ <T> /* comment */ (lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: leading_trailing_space
//

func abc <T> (lhs: Int, rhs: Int) -> Int {}

func /* comment */ abc(lhs: Int, rhs: Int) -> Int {}

func /* comment */  abc(lhs: Int, rhs: Int) -> Int {}

func abc /* comment */ (lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: no_space
//

func abc /* comment */ <T>(lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: no_space
//

func abc<T> /* comment */ (lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: no_space
//

func abc /* comment */ <T> /* comment */ (lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: no_space
//

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

//
// generic_spacing: leading_trailing_space
//

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

//
// generic_spacing: leading_trailing_space
//

func foo /* comment */ <
T
> (
    param1: Int,
    param2: Bool,
    param3: [String]
) { }

Triggering Examples

func↓  name(lhs: A, rhs: A) -> A {}

func name↓ (lhs: A, rhs: A) -> A {}

func↓  name↓ (lhs: A, rhs: A) -> A {}

func <|↓(lhs: Int, rhs: Int) -> Int {}

func <|<↓<A>(lhs: A, rhs: A) -> A {}

func <|↓  (lhs: Int, rhs: Int) -> Int {}

func <|<↓  <A>(lhs: A, rhs: A) -> A {}

func <|↓/* comment */  (lhs: Int, rhs: Int) -> Int {}

func <|<↓/* comment */  <A>(lhs: A, rhs: A) -> A {}

func <|< <A>↓/* comment */  (lhs: A, rhs: A) -> A {}

func name↓ <T>(lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: no_space
//

func name↓ /* comment */  <T>↓  /* comment */  (lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: no_space
//

func name /* comment */ /* comment */  <T>↓  /* comment */  (lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: no_space
//

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

//
// generic_spacing: no_space
//

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

//
// generic_spacing: no_space
//

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

//
// generic_spacing: leading_space
//

func abc <T>↓ (lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: leading_space
//

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

//
// generic_spacing: trailing_space
//

func abc↓ <T> (lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: trailing_space
//

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

//
// generic_spacing: leading_trailing_space
//

func abc↓<T> (lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: leading_trailing_space
//

func abc <T>↓(lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: leading_trailing_space
//

func abc↓<T>↓(lhs: Int, rhs: Int) -> Int {}

//
// generic_spacing: leading_trailing_space
//

func foo↓ /* comment */  <
T
>↓  (
    param1: Int,
    param2: Bool,
    param3: [String]
) { }