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50 lines
1.5 KiB
Swift
50 lines
1.5 KiB
Swift
// RUN: %target-typecheck-verify-swift -warn-redundant-requirements
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// RUN: not %target-swift-frontend -typecheck %s -debug-generic-signatures 2>&1 | %FileCheck %s
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class C {}
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struct S {}
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// CHECK-LABEL: .P1@
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// CHECK-NEXT: Requirement signature: <Self where Self.[P1]T == C>
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protocol P1 {
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associatedtype T where T : C, T == C
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// expected-warning@-1 {{redundant superclass constraint 'Self.T' : 'C'}}
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}
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// CHECK-LABEL: .P2@
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// CHECK-NEXT: Requirement signature: <Self>
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protocol P2 {
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// expected-error@-1 {{no type for 'Self.T' can satisfy both 'Self.T : C' and 'Self.T == S'}}
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// expected-error@-2 {{no type for 'Self.T' can satisfy both 'Self.T : _NativeClass' and 'Self.T == S'}}
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associatedtype T where T : C, T == S
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}
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// CHECK-LABEL: .P3@
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// CHECK-NEXT: Requirement signature: <Self>
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protocol P3 {
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// expected-error@-1 {{no type for 'Self.T' can satisfy both 'Self.T : C' and 'Self.T == S'}}
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// expected-error@-2 {{no type for 'Self.T' can satisfy both 'Self.T : _NativeClass' and 'Self.T == S'}}
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associatedtype T where T == S, T : C
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}
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protocol P4a {
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associatedtype T : C
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}
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// CHECK-LABEL: .P4@
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// CHECK-NEXT: Requirement signature: <Self where Self.[P4]T : P4>
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protocol P4 {
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// expected-error@-1 {{no type for 'Self.T.T' can satisfy both 'Self.T.T == S' and 'Self.T.T : P4'}}
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associatedtype T : P4 where T.T == S
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}
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class D {}
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// CHECK-LABEL: .P5@
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// CHECK-NEXT: Requirement signature: <Self where Self.[P5]T == D>
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protocol P5 {
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// expected-error@-1 {{no type for 'Self.T' can satisfy both 'Self.T : D' and 'Self.T : C'}}
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associatedtype T where T : C, T == D
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}
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