Identifier Name

Identifier names should only contain alphanumeric characters and start with a lowercase character or should only contain capital letters. In an exception to the above, variable names may start with a capital letter when they are declared as static. Variable names should not be too long or too short.

  • Identifier: identifier_name
  • Enabled by default: Yes
  • Supports autocorrection: No
  • Kind: style
  • Analyzer rule: No
  • Minimum Swift compiler version: 5.0.0
  • Default configuration:
    KeyValue
    min_length
    KeyValue
    warning 3
    error 2
    max_length
    KeyValue
    warning 40
    error 60
    excluded [“^id$”]
    allowed_symbols []
    unallowed_symbols_severity error
    validates_start_with_lowercase error

Non Triggering Examples

let myLet = 0

var myVar = 0

private let _myLet = 0

class Abc { static let MyLet = 0 }

let URL: NSURL? = nil

let XMLString: String? = nil

override var i = 0

enum Foo { case myEnum }

func isOperator(name: String) -> Bool

func typeForKind(_ kind: SwiftDeclarationKind) -> String

func == (lhs: SyntaxToken, rhs: SyntaxToken) -> Bool

override func IsOperator(name: String) -> Bool

enum Foo { case `private` }

enum Foo { case value(String) }

class Foo {
   static let Bar = 0
}

class Foo {
   static var Bar = 0
}

Triggering Examples

↓let _myLet = 0

private ↓let myLet_ = 0

↓let myExtremelyVeryVeryVeryVeryVeryVeryLongLet = 0

↓var myExtremelyVeryVeryVeryVeryVeryVeryLongVar = 0

private ↓let _myExtremelyVeryVeryVeryVeryVeryVeryLongLet = 0

↓let i = 0

↓var aa = 0

private ↓let _i = 0