SwiftLint/Source/SwiftLintFramework/Rules/Lint/NSObjectPreferIsEqualRuleExamples.swift

internal struct NSObjectPreferIsEqualRuleExamples {
    static let nonTriggeringExamples: [Example] = [
        // NSObject subclass without ==
        Example("""
        class AClass: NSObject {
        }
        """),
        // @objc class without ==
        Example("""
        @objc class AClass: SomeNSObjectSubclass {
        }
        """),
        // Class with == which does not subclass NSObject
        Example("""
        class AClass: Equatable {
            static func ==(lhs: AClass, rhs: AClass) -> Bool {
                return true
            }
        """),
        // NSObject subclass implementing isEqual
        Example("""
        class AClass: NSObject {
            override func isEqual(_ object: Any?) -> Bool {
                return true
            }
        }
        """),
        // @objc class implementing isEqual
        Example("""
        @objc class AClass: SomeNSObjectSubclass {
            override func isEqual(_ object: Any?) -> Bool {
                return false
            }
        }
        """),
        // NSObject subclass implementing == with different signature
        Example("""
        class AClass: NSObject {
            static func ==(lhs: AClass, rhs: BClass) -> Bool {
                return true
            }
        }
        """),
        // Equatable struct
        Example("""
        struct AStruct: Equatable {
            static func ==(lhs: AStruct, rhs: AStruct) -> Bool {
                return false
            }
        }
        """),
        // Equatable enum
        Example("""
        enum AnEnum: Equatable {
            static func ==(lhs: AnEnum, rhs: AnEnum) -> Bool {
                return true
            }
        }
        """)
    ]

    static let triggeringExamples: [Example] = [
        // NSObject subclass implementing ==
        Example("""
        class AClass: NSObject {
            ↓static func ==(lhs: AClass, rhs: AClass) -> Bool {
                return false
            }
        }
        """),
        // @objc class implementing ==
        Example("""
        @objc class AClass: SomeOtherNSObjectSubclass {
            ↓static func ==(lhs: AClass, rhs: AClass) -> Bool {
                return true
            }
        }
        """),
        // Equatable NSObject subclass implementing ==
        Example("""
        class AClass: NSObject, Equatable {
            ↓static func ==(lhs: AClass, rhs: AClass) -> Bool {
                return false
            }
        }
        """),
        // NSObject subclass overriding isEqual and implementing ==
        Example("""
        class AClass: NSObject {
            override func isEqual(_ object: Any?) -> Bool {
                guard let other = object as? AClass else {
                    return false
                }
                return true
            }

            ↓static func ==(lhs: AClass, rhs: AClass) -> Bool {
                return false
            }
        }
        """)
    ]
}