extensions.swift

// Please keep this file in alphabetical order!

// RUN: %empty-directory(%t)
// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -emit-module -o %t %s -disable-objc-attr-requires-foundation-module -Xllvm -sil-disable-pass=MandatoryARCOpts
// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -parse-as-library %t/extensions.swiftmodule -typecheck -verify -emit-objc-header-path %t/extensions.h -import-objc-header %S/../Inputs/empty.h -disable-objc-attr-requires-foundation-module -Xllvm -sil-disable-pass=MandatoryARCOpts
// RUN: %FileCheck %s --input-file %t/extensions.h
// RUN: %FileCheck --check-prefix=NEGATIVE %s --input-file %t/extensions.h
// RUN: %check-in-clang %t/extensions.h

// REQUIRES: objc_interop

import Foundation
import AppKit
import objc_generics

// CHECK-NOT: AppKit

// CHECK-LABEL: @interface A1{{$}}
// CHECK-NEXT: init
// CHECK-NEXT: @end
@objc@objcMembersclassA1{}
// CHECK-EMPTY:
// NEGATIVE-NOT: @interface A1 (SWIFT_EXTENSION(extensions))
extensionA1{}

// CHECK-LABEL: @interface A2{{$}}
// CHECK-NEXT: init
// CHECK-NEXT: @end
// CHECK-EMPTY:
// CHECK-NEXT: @interface A2 (SWIFT_EXTENSION(extensions))
// CHECK-DAG: @property (nonatomic, readonly) NSInteger some;
// CHECK-NEXT: @end
// CHECK-EMPTY:
extensionA2{
@objcvarsome:Int{return1}
}
@objc@objcMembersclassA2{}

// CHECK-NEXT: SWIFT_CLASS
// CHECK-NEXT: @interface A3{{$}}
// CHECK-NEXT: init
// CHECK-NEXT: @end
// CHECK-EMPTY:
@objc@objcMembersclassA3{}

// CHECK-NEXT: @interface A3 (SWIFT_EXTENSION(extensions))
// CHECK-NEXT: @property (nonatomic, readonly) NSInteger more;
// CHECK-NEXT: @end
// CHECK-EMPTY:
// CHECK-NEXT: @interface A3 (SWIFT_EXTENSION(extensions))
// CHECK-NEXT: @property (nonatomic, readonly) NSInteger some;
// CHECK-NEXT: @end
// CHECK-EMPTY:
extensionA3{
@objcvarsome:Int{return1}
}
extensionA3{
@objcvarmore:Int{return10}
}

// CHECK-NEXT: SWIFT_CLASS
// CHECK-NEXT: @interface A4{{$}}
// CHECK-NEXT: init
// CHECK-NEXT: @end
// CHECK-EMPTY:
@objc@objcMembersclassA4{}

// CHECK-NEXT: @interface A4 (SWIFT_EXTENSION(extensions))
// CHECK-NEXT: @end
// CHECK-EMPTY:
extensionA4{
 // CHECK-NEXT: SWIFT_CLASS
 // CHECK-NEXT: @interface Inner
 // CHECK-NEXT: init
 // CHECK-NEXT: @end
 // CHECK-EMPTY:
@objc@objcMembersclassInner{}
}

// CHECK-NEXT: SWIFT_CLASS
// CHECK-NEXT: @interface A5{{$}}
// CHECK-NEXT: init
// CHECK-NEXT: @end
// CHECK-EMPTY:
@objc@objcMembersclassA5{}

// NEGATIVE-NOT: @interface A5 (SWIFT_EXTENSION(extensions))
extensionA5{
varnotObjC:NotObjC{returnNotObjC()}
}

// Check that two otherwise tied extensions will print in alphabetical
// order by first member with a differing Swift name.

// CHECK-NEXT: SWIFT_CLASS
// CHECK-NEXT: @interface A6
@objcclassA6{}

extensionA6{
@objc(skippedBool:)func skipped(_:Bool){}
@objcfunc def(){}
}
extensionA6{
@objc(skippedInt:)func skipped(_:Int){}
@objcfunc abc(){}
}
// CHECK: @interface A6 (SWIFT_EXTENSION(extensions))
// CHECK-NEXT: - (void)skippedInt:
// CHECK-NEXT: - (void)abc
// CHECK-NEXT: @end
// CHECK-EMPTY:
// CHECK-NEXT: @interface A6 (SWIFT_EXTENSION(extensions))
// CHECK-NEXT: - (void)skippedBool:
// CHECK-NEXT: - (void)def
// CHECK-NEXT: @end
// CHECK-EMPTY:

// CHECK-NEXT: SWIFT_CLASS
// CHECK-NEXT: @interface CustomName{{$}}
// CHECK-NEXT: init
// CHECK-NEXT: @end
// CHECK-EMPTY:
@objc(CustomName)
@objcMembers
classClassWithCustomName{
}

// CHECK-NEXT: @interface CustomName (SWIFT_EXTENSION(extensions))
// CHECK-NEXT: - (void)foo;
// CHECK-NEXT: @end
// CHECK-EMPTY:
extensionClassWithCustomName{
@objcfunc foo(){}
}

// NEGATIVE-NOT: CGColor
extensionCGColor{
func anyOldMethod(){}
}

// CHECK-NEXT: @interface GenericClass<T> (SWIFT_EXTENSION(extensions))
// CHECK-NEXT: - (void)bar;
// CHECK-NEXT: @end
// CHECK-EMPTY:
extensionGenericClass{
@objcfunc bar(){}
}

// NEGATIVE-NOT: NotObjC
classNotObjC{}
extensionNotObjC{}

// NEGATIVE-NOT: @interface NSObject{{$}}
// NEGATIVE-NOT: @class NSObject
// CHECK-LABEL: @interface NSObject (SWIFT_EXTENSION(extensions))
// CHECK-NEXT: @property (nonatomic, readonly) NSInteger some;
// CHECK-NEXT: @end
// CHECK-EMPTY:
extensionNSObject{
@objcvarsome:Int{return1}
}

// NEGATIVE-NOT: @class NSString;
// CHECK: @class NSColor;
// CHECK-NEXT: @interface NSString (SWIFT_EXTENSION(extensions))
// CHECK-NEXT: - (void)test;
// CHECK-NEXT: + (void)test2;
// CHECK-NEXT: + (NSString * _Nullable)fromColor:(NSColor * _Nonnull)color SWIFT_WARN_UNUSED_RESULT;
// CHECK-NEXT: @end
// CHECK-EMPTY:
extensionNSString{
@objcfunc test(){}
@objcclassfunc test2(){}

@objcclassfunc fromColor(_ color:NSColor)->NSString?{returnnil; }
}

// CHECK-NEXT: @protocol Pettable;
// CHECK-NEXT: @interface PettableContainer<T> (SWIFT_EXTENSION(extensions))
// CHECK-NEXT: - (PettableContainer<T> * _Nonnull)duplicate SWIFT_WARN_UNUSED_RESULT;
// CHECK-NEXT: - (PettableContainer<T> * _Nonnull)duplicate2 SWIFT_WARN_UNUSED_RESULT;
// CHECK-NEXT: - (PettableContainer<PettableOverextendedMetaphor *> * _Nonnull)duplicate3 SWIFT_WARN_UNUSED_RESULT;
// CHECK-NEXT: - (T _Nonnull)extract SWIFT_WARN_UNUSED_RESULT;
// CHECK-NEXT: - (T _Nullable)extract2 SWIFT_WARN_UNUSED_RESULT;
// CHECK-NEXT: @end
// CHECK-EMPTY:
extensionPettableContainer{
@objcfunc duplicate()->PettableContainer{fatalError()}
@objcfunc duplicate2()->PettableContainer<T>{fatalError()}
@objcfunc duplicate3()->PettableContainer<PettableOverextendedMetaphor>{fatalError()}
@objcfunc extract()->T{fatalError()}
@objcfunc extract2()->T?{fatalError()}
}