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6f95203dfd
This is similar to SuppressedAssociatedTypes, but infers default requirements when primary associated types of protocols are suppressed. This defaulting for the primary associated types happens in extensions of the protocol, along with generic parameters, whenever a source-written requirement states a conformance requirement for the protocol. Thus, the current scheme for this defaulting is a simplistic, driven by source-written requirements, rather than facts that are inferred while building generic signatures. Defaults are not expanded for infinitely many associated types. rdar://135168163
187 lines
6.8 KiB
Swift
187 lines
6.8 KiB
Swift
// RUN: %target-swift-frontend \
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// RUN: -verify -typecheck %s -debug-generic-signatures \
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// RUN: -debug-inverse-requirements 2>&1 | %FileCheck %s --implicit-check-not "error:"
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// CHECK-LABEL: (file).genericFn@
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// CHECK: Generic signature: <T where T : Copyable, T : Escapable>
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func genericFn<T>(_ t: T) {}
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// CHECK-LABEL: .withInverse1@
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// CHECK: Generic signature: <T where T : Escapable>
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func withInverse1<T: ~Copyable>(_ t: borrowing T) {}
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// CHECK-LABEL: .withInverse2@
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// CHECK: Generic signature: <T where T : Copyable>
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func withInverse2<T: ~Escapable>(_ t: borrowing T) {}
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// CHECK-LABEL: .withInverse3@
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// CHECK: Generic signature: <T>
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func withInverse3<T: ~Copyable & ~Escapable>(_ t: borrowing T) {}
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// CHECK-LABEL: .where1@
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// CHECK: Generic signature: <T where T : Escapable>
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func where1<T>(_ t: borrowing T) where T: ~Copyable {}
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// CHECK-LABEL: .where2@
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// CHECK: Generic signature: <T where T : NoCopyP>
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func where2<T>(_ t: borrowing T) where T: NoCopyP, T: ~Copyable {}
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// CHECK-LABEL: .where3@
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// CHECK: Generic signature: <T where T : Escapable, T : Empty>
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func where3<T>(_ t: borrowing T) where T: Empty, T: ~Copyable {}
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// CHECK-LABEL: .where4@
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// CHECK: Generic signature: <T where T : Copyable>
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func where4<T>(_ t: borrowing T) where T: ~Escapable {}
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// CHECK-LABEL: .where5@
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// CHECK: Generic signature: <T where T : Copyable, T : Empty>
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func where5<T>(_ t: borrowing T) where T: Empty, T: ~Escapable {}
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// CHECK-LABEL: .where6@
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// CHECK: Generic signature: <T where T : Escapable, T : Empty>
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func where6<T>(_ t: borrowing T) where T: Empty, T: ~Copyable {}
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// CHECK-LABEL: .compose1@
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// CHECK: Generic signature: <T where T : NoCopyP>
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func compose1<T: NoCopyP & ~Copyable>(_ t: borrowing T) {}
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// CHECK-LABEL: .compose3@
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// CHECK: Canonical generic signature: <τ_0_0 where τ_0_0 : NoCopyP>
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func compose3(_ t: inout some NoCopyP & ~Copyable) {}
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// CHECK-LABEL: .f1@
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// CHECK: Generic signature: <T where T : Copyable, T : NoCopyP>
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func f1<T: NoCopyP>(_ t: T) {}
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// CHECK-LABEL: .withSome@
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// CHECK: Canonical generic signature: <τ_0_0 where τ_0_0 : Copyable, τ_0_0 : Escapable>
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func withSome(_ t: some Any) {}
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// CHECK-LABEL: .withSomeEmpty@
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// CHECK: Canonical generic signature: <τ_0_0 where τ_0_0 : Copyable, τ_0_0 : Escapable, τ_0_0 : Empty>
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func withSomeEmpty(_ t: some Empty) {}
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// CHECK-LABEL: .withSomeProto@
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// CHECK: Canonical generic signature: <τ_0_0 where τ_0_0 : Copyable, τ_0_0 : NoCopyP>
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func withSomeProto(_ t: some NoCopyP) {}
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// CHECK-LABEL: .withInverseSome@
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// CHECK: Canonical generic signature: <τ_0_0 where τ_0_0 : Escapable>
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func withInverseSome(_ t: borrowing some ~Copyable) {}
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// CHECK-LABEL: .checkAnyObject@
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// CHECK: Canonical generic signature: <τ_0_0 where τ_0_0 : AnyObject, τ_0_0 : Copyable, τ_0_0 : Escapable>
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func checkAnyObject<Result>(_ t: Result) where Result: AnyObject {}
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// CHECK-LABEL: .checkSoup@
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// CHECK: Canonical generic signature: <τ_0_0 where τ_0_0 : Soup>
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class Soup {}
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func checkSoup<T>(_ t: T) where T: Soup {}
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// CHECK-LABEL: .S1@
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// CHECK: Generic signature: <T where T : Copyable, T : Escapable>
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struct S1<T> {}
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// CHECK-LABEL: .S1_I@
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// CHECK: Generic signature: <T where T : Escapable>
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struct S1_I<T: ~Copyable> {}
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// CHECK-LABEL: .C1@
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// CHECK: Generic signature: <T, U where T : Copyable, T : Escapable, U : Copyable, U : Escapable>
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class C1<T, U> {}
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// CHECK-LABEL: .C1_IC@
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// CHECK: Generic signature: <T, U where T : Escapable, U : Copyable, U : Escapable>
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class C1_IC<T: ~Copyable, U> {}
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// CHECK-LABEL: .C1_CI@
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// CHECK: Generic signature: <T, U where T : Copyable, T : Escapable, U : Escapable>
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class C1_CI<T, U> where U: ~Copyable {}
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// CHECK-LABEL: .C1_II@
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// CHECK: Generic signature: <T, U where T : Escapable, U : Escapable>
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class C1_II<T: ~Copyable, U: ~Copyable> {}
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// CHECK-LABEL: .Empty@
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// CHECK: Requirement signature: <Self>
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protocol Empty: ~Copyable, ~Escapable {}
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// CHECK-LABEL: .NoEscapeP@
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// CHECK: Requirement signature: <Self where Self : Copyable>
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protocol NoEscapeP: ~Escapable {}
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// CHECK-LABEL: .NoEscapeP2@
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// CHECK: Requirement signature: <Self where Self : NoEscapeP>
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protocol NoEscapeP2 where Self: NoEscapeP & ~Escapable {}
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// CHECK-LABEL: .ForgotTildeEscape@
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// CHECK: Requirement signature: <Self where Self : Escapable, Self : NoEscapeP>
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protocol ForgotTildeEscape where Self: NoEscapeP {}
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// CHECK-LABEL: .NoCopyP@
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// CHECK: Requirement signature: <Self where Self : Escapable>
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protocol NoCopyP: ~Copyable {}
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// CHECK-LABEL: .NoCopyP2@
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// CHECK: Requirement signature: <Self where Self : NoCopyP>
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protocol NoCopyP2 where Self: ~Copyable & NoCopyP {}
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// CHECK-LABEL: .CopyP@
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// CHECK: Requirement signature: <Self where Self : Copyable, Self : Escapable>
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protocol CopyP {}
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// CHECK-LABEL: .CopyP2@
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// CHECK: Requirement signature: <Self where Self : CopyP>
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protocol CopyP2: CopyP {}
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// CHECK-LABEL: .CopyInheritsNC@
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// CHECK: Requirement signature: <Self where Self : Copyable, Self : NoCopyP>
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protocol CopyInheritsNC: NoCopyP {}
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// CHECK-LABEL: .Cond@
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// CHECK: Generic signature: <T where T : Escapable>
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// CHECK-NEXT: Canonical generic signature: <τ_0_0 where τ_0_0 : Escapable>
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struct Cond<T: ~Copyable>: ~Copyable {}
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// CHECK-LABEL: ExtensionDecl line={{.*}} base=Cond
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// CHECK: <T where T : Copyable, T : Escapable>
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// CHECK-NEXT: Canonical generic signature: <τ_0_0 where τ_0_0 : Copyable, τ_0_0 : Escapable>
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// CHECK-LABEL: ExtensionDecl line={{.*}} base=Cond
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// CHECK: (normal_conformance type="Cond<T>" protocol="Copyable"
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// CHECK-NEXT: (requirement "T" conforms_to "Copyable"))
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extension Cond: Copyable where T: Copyable {}
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// CHECK-LABEL: .FullyGenericArg@
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// CHECK: Generic signature: <T>
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// CHECK-NEXT: Canonical generic signature: <τ_0_0>
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struct FullyGenericArg<T: ~Escapable & ~Copyable> {}
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// CHECK-LABEL: StructDecl name=FullyGenericArg
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// CHECK-NEXT: (builtin_conformance type="FullyGenericArg<T>" protocol="Copyable"{{.*}})
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// CHECK-NEXT: (builtin_conformance type="FullyGenericArg<T>" protocol="Escapable"{{.*}})
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// CHECK-LABEL: ExtensionDecl line={{.*}} base=FullyGenericArg
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// CHECK: Generic signature: <T>
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// CHECK-NEXT: Canonical generic signature: <τ_0_0>
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// CHECK-LABEL: ExtensionDecl line={{.*}} base=FullyGenericArg
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// CHECK-NEXT: (normal_conformance type="FullyGenericArg<T>" protocol="Empty"{{.*}})
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extension FullyGenericArg: Empty where T: ~Copyable, T: ~Escapable {}
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// CHECK-LABEL: .P2@
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// CHECK: <Self where Self : Copyable, Self : Escapable, Self.[P2]A : Copyable, Self.[P2]A : Escapable>
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protocol P2 { associatedtype A }
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// CHECK-LABEL: .P2_IC@
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// CHECK: <Self where Self : Escapable, Self.[P2_IC]A : Copyable, Self.[P2_IC]A : Escapable>
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protocol P2_IC: ~Copyable { associatedtype A }
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// CHECK-LABEL: .Explicit@
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// CHECK: Requirement signature: <Self where Self : Copyable, Self : Escapable, Self.[Explicit]Elm : Copyable, Self.[Explicit]Elm : Escapable>
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protocol Explicit: Copyable, Escapable {
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associatedtype Elm: Copyable, Escapable
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}
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