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Protocol conformances can be implied by super classes. When collecting the list of IncludedProtocols, we should traverse the class inheritance chain and collect all protocols. Without this change, these implied conformances will be printed again via a synthesized extension at the end of the Swift interface file, leading to an error of redundant conformances when building modules. rdar://58563540
11 lines
420 B
Swift
11 lines
420 B
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-frontend -typecheck -module-name Foo -emit-module-interface-path %t/Foo.swiftinterface %s
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// RUN: %target-swift-frontend -compile-module-from-interface %t/Foo.swiftinterface -o %t/Foo.swiftmodule
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public protocol ProtocolA : class {}
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public protocol ProtocolB: ProtocolA {}
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protocol ProtocolC: ProtocolA {}
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public class A: ProtocolB {}
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public class B: A, ProtocolC {}
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