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// RUN: %empty-directory(%t)
// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -typecheck -parse-as-library -swift-version 4 %s -verify
// RUN: not %target-swift-frontend(mock-sdk: %clang-importer-sdk) -typecheck -parse-as-library -swift-version 4 %s -disable-nskeyedarchiver-diagnostics 2>&1 | %FileCheck -check-prefix CHECK-NO-DIAGS %s
// RUN: not %target-swift-frontend(mock-sdk: %clang-importer-sdk) -typecheck -parse-as-library -swift-version 4 %s -dump-ast -target %target-pre-stable-abi-triple > %t/old.ast
// RUN: %FileCheck --check-prefix=CHECK-OLD %s < %t/old.ast
// RUN: %FileCheck --check-prefix=NEGATIVE %s < %t/old.ast
// REQUIRES: objc_interop
// UNSUPPORTED: swift_only_stable_abi
// See also nscoding_stable_abi.swift, for the stable ABI deployment
// target test.
// CHECK-NO-DIAGS-NOT: NSCoding
// CHECK-NO-DIAGS-NOT: unstable
import Foundation
// Top-level classes
// NEGATIVE-NOT: class_decl{{.*}}"CodingA"{{.*}}@_staticInitializeObjCMetadata
class CodingA : NSObject, NSCoding {
required init(coder: NSCoder) { }
func encode(coder: NSCoder) { }
} // okay
// Nested classes
extension CodingA {
// NEGATIVE-NOT: class_decl{{.*}}"NestedA"{{.*}}@_staticInitializeObjCMetadata
class NestedA : NSObject, NSCoding { // expected-error{{nested class 'CodingA.NestedA' has an unstable name when archiving via 'NSCoding'}}
// expected-note@-1{{for compatibility with existing archives, use '@objc' to record the Swift 3 runtime name}}{{3-3=@objc(_TtCC8nscoding7CodingA7NestedA)}}
// expected-note@-2{{for new classes, use '@objc' to specify a unique, prefixed Objective-C runtime name}}{{3-3=@objc(<#prefixed Objective-C class name#>)}}
required init(coder: NSCoder) { }
func encode(coder: NSCoder) { }
}
class NestedB : NSObject {
// expected-note@-1{{for compatibility with existing archives, use '@objc' to record the Swift 3 runtime name}}{{3-3=@objc(_TtCC8nscoding7CodingA7NestedB)}}
// expected-note@-2{{for new classes, use '@objc' to specify a unique, prefixed Objective-C runtime name}}{{3-3=@objc(<#prefixed Objective-C class name#>)}}
required init(coder: NSCoder) { }
func encode(coder: NSCoder) { }
}
// NEGATIVE-NOT: class_decl{{.*}}"NestedC"{{.*}}@_staticInitializeObjCMetadata
@objc(CodingA_NestedC)
class NestedC : NSObject, NSCoding {
required init(coder: NSCoder) { }
func encode(coder: NSCoder) { }
}
// NEGATIVE-NOT: class_decl{{.*}}"NestedD"{{.*}}@_staticInitializeObjCMetadata
@objc(CodingA_NestedD)
class NestedD : NSObject {
required init(coder: NSCoder) { }
func encode(coder: NSCoder) { }
}
}
extension CodingA.NestedB: NSCoding { // expected-error{{nested class 'CodingA.NestedB' has an unstable name when archiving via 'NSCoding'}}
}
extension CodingA.NestedD: NSCoding { // okay
}
// Generic classes
// NEGATIVE-NOT: class_decl{{.*}}"CodingB"{{.*}}@_staticInitializeObjCMetadata
class CodingB<T> : NSObject, NSCoding {
required init(coder: NSCoder) { }
func encode(coder: NSCoder) { }
}
extension CodingB {
class NestedA : NSObject, NSCoding {
required init(coder: NSCoder) { }
func encode(coder: NSCoder) { }
}
}
// Fileprivate classes.
// NEGATIVE-NOT: class_decl{{.*}}"CodingC"{{.*}}@_staticInitializeObjCMetadata
fileprivate class CodingC : NSObject, NSCoding { // expected-error{{fileprivate class 'CodingC' has an unstable name when archiving via 'NSCoding'}}
// expected-note@-1{{for compatibility with existing archives, use '@objc' to record the Swift 3 runtime name}}{{1-1=@objc(_TtC8nscodingP33_0B4E7641C0BD1F170280EEDD0D0C1F6C7CodingC)}}
// expected-note@-2{{for new classes, use '@objc' to specify a unique, prefixed Objective-C runtime name}}{{1-1=@objc(<#prefixed Objective-C class name#>)}}
required init(coder: NSCoder) { }
func encode(coder: NSCoder) { }
}
// Private classes
private class CodingD : NSObject, NSCoding { // expected-error{{private class 'CodingD' has an unstable name when archiving via 'NSCoding'}}
// expected-note@-1{{for compatibility with existing archives, use '@objc' to record the Swift 3 runtime name}}{{1-1=@objc(_TtC8nscodingP33_0B4E7641C0BD1F170280EEDD0D0C1F6C7CodingD)}}
// expected-note@-2{{for new classes, use '@objc' to specify a unique, prefixed Objective-C runtime name}}{{1-1=@objc(<#prefixed Objective-C class name#>)}}
required init(coder: NSCoder) { }
func encode(coder: NSCoder) { }
}
// Local classes.
func someFunction() {
class LocalCoding : NSObject, NSCoding { // expected-error{{local class 'LocalCoding' has an unstable name when archiving via 'NSCoding'}}
// expected-note@-1{{for compatibility with existing archives, use '@objc' to record the Swift 3 runtime name}}{{3-3=@objc(_TtCF8nscoding12someFunctionFT_T_L_11LocalCoding)}}
// expected-note@-2{{for new classes, use '@objc' to specify a unique, prefixed Objective-C runtime name}}{{3-3=@objc(<#prefixed Objective-C class name#>)}}
required init(coder: NSCoder) { }
func encode(coder: NSCoder) { }
}
}
// Inherited conformances.
// NEGATIVE-NOT: class_decl{{.*}}"CodingE"{{.*}}@_staticInitializeObjCMetadata
class CodingE<T> : CodingB<T> {
required init(coder: NSCoder) { super.init(coder: coder) }
override func encode(coder: NSCoder) { }
}
// @objc suppressions
@objc(TheCodingF)
fileprivate class CodingF : NSObject, NSCoding {
required init(coder: NSCoder) { }
func encode(coder: NSCoder) { }
}
@objc(TheCodingG)
private class CodingG : NSObject, NSCoding {
required init(coder: NSCoder) { }
func encode(coder: NSCoder) { }
}
extension CodingB {
// NEGATIVE-NOT: class_decl{{.*}}"GenericViaScope"{{.*}}@_staticInitializeObjCMetadata
@objc(GenericViaScope) // expected-error {{generic subclasses of '@objc' classes cannot have an explicit '@objc' because they are not directly visible from Objective-C}}
class GenericViaScope : NSObject { }
}
// Inference of @_staticInitializeObjCMetadata.
// NEGATIVE-NOT: class_decl{{.*}}"SubclassOfCodingA"{{.*}}@_staticInitializeObjCMetadata
class SubclassOfCodingA : CodingA { }
// CHECK-OLD: class_decl{{.*}}"SubclassOfCodingE"{{.*}}@_staticInitializeObjCMetadata
// NEGATIVE-NEW-NOT: class_decl{{.*}}"SubclassOfCodingE"{{.*}}@_staticInitializeObjCMetadata
class SubclassOfCodingE : CodingE<Int> { }
// Do not warn when simply inheriting from classes that conform to NSCoding.
// The subclass may never be serialized. But do still infer static
// initialization, just in case.
// NEGATIVE-NOT: class_decl{{.*}}"PrivateSubclassOfCodingA"{{.*}}@_staticInitializeObjCMetadata
private class PrivateSubclassOfCodingA : CodingA { }
// CHECK-OLD: class_decl{{.*}}"PrivateSubclassOfCodingE"{{.*}}@_staticInitializeObjCMetadata
// NEGATIVE-NEW-NOT: class_decl{{.*}}"PrivateSubclassOfCodingE"{{.*}}@_staticInitializeObjCMetadata
private class PrivateSubclassOfCodingE : CodingE<Int> { }
// But do warn when inherited through a protocol.
protocol AlsoNSCoding : NSCoding {}
private class CodingH : NSObject, AlsoNSCoding { // expected-error{{private class 'CodingH' has an unstable name when archiving via 'NSCoding'}}
// expected-note@-1{{for compatibility with existing archives, use '@objc' to record the Swift 3 runtime name}}{{1-1=@objc(_TtC8nscodingP33_0B4E7641C0BD1F170280EEDD0D0C1F6C7CodingH)}}
// expected-note@-2{{for new classes, use '@objc' to specify a unique, prefixed Objective-C runtime name}}{{1-1=@objc(<#prefixed Objective-C class name#>)}}
required init(coder: NSCoder) { }
func encode(coder: NSCoder) { }
}
// Don't allow one to write @_staticInitializeObjCMetadata!
@_staticInitializeObjCMetadata // expected-error{{unknown attribute '_staticInitializeObjCMetadata'}}
class DontAllowStaticInits { }
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