| // RUN: %target-typecheck-verify-swift -swift-version 3 |
| // All of these cases should work in Swift 4, so do a normal without -verify should succeed: |
| // RUN: %target-swift-frontend -typecheck %s -swift-version 4 |
| |
| struct Struct {} |
| |
| extension Struct: Equatable {} |
| // expected-error@-1{{implementation of 'Equatable' cannot be automatically synthesized in an extension in Swift 3}} |
| extension Struct: Codable {} |
| // expected-error@-1{{implementation of 'Encodable' cannot be automatically synthesized in an extension in Swift 3}} |
| // expected-error@-2{{implementation of 'Decodable' cannot be automatically synthesized in an extension in Swift 3}} |
| |
| final class Final {} |
| extension Final: Codable {} |
| // expected-error@-1{{implementation of 'Encodable' cannot be automatically synthesized in an extension in Swift 3}} |
| // expected-error@-2{{implementation of 'Decodable' cannot be automatically synthesized in an extension in Swift 3}} |
| |
| class Nonfinal {} |
| extension Nonfinal: Encodable {} |
| // expected-error@-1{{implementation of 'Encodable' cannot be automatically synthesized in an extension in Swift 3}} |
| |
| |
| enum NoValues { |
| case a, b |
| } |
| |
| // This case has been able to be synthesized since at least Swift 3, so it |
| // should work in that mode. |
| extension NoValues: Equatable {} |
| extension NoValues: Hashable {} |
| |
| extension NoValues: CaseIterable {} |
| // expected-error@-1{{implementation of 'CaseIterable' cannot be automatically synthesized in an extension in Swift 3}} |
| // expected-error@-2{{type 'NoValues' does not conform to protocol 'CaseIterable'}} |
| |
| enum Values { |
| case a(Int), b |
| } |
| |
| extension Values: Equatable {} |
| // expected-error@-1{{implementation of 'Equatable' cannot be automatically synthesized in an extension in Swift 3}} |
| extension Values: Hashable {} |
| // expected-error@-1{{implementation of 'Hashable' cannot be automatically synthesized in an extension in Swift 3}} |
