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4622873ba7
In https://github.com/apple/swift/pull/65267 deserialization safety was made more conservative, allowing deserialization of any protocol and deserialization of any extension declaring an explicit conformance to any protocol. We can refine this to only allow deserialization of safe protocols and deserialization of extensions declaring conformances to safe protocols. Importantly, though, we must look up all conformances declared by the extension, not just the explicit ones. Resolves rdar://114673761
55 lines
1.5 KiB
Swift
55 lines
1.5 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: split-file %s %t
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// REQUIRES: asserts
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//--- Lib.swift
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// RUN: %target-swift-frontend -emit-module %t/Lib.swift \
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// RUN: -enable-library-evolution -swift-version 5 \
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// RUN: -emit-module-path %t/Lib.swiftmodule \
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// RUN: -emit-module-interface-path %t/Lib.swiftinterface
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// RUN: cat %t/Lib.swiftinterface | %FileCheck %t/Lib.swift
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public protocol PublicProtocol {}
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// CHECK: public protocol PublicProtocol
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protocol InternalProtocol: PublicProtocol {}
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// CHECK-NOT: InternalProtocol
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public class IndirectConformant {
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public init() {}
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}
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extension IndirectConformant: InternalProtocol {}
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// CHECK: extension Lib.IndirectConformant : Lib.PublicProtocol {}
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extension String: InternalProtocol {}
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// CHECK: extension Swift.String : Lib.PublicProtocol {}
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//--- Client.swift
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/// Works without safety.
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// RUN: %target-swift-frontend -typecheck %t/Client.swift -I %t
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/// Works with safety.
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// RUN: %target-swift-frontend -typecheck %t/Client.swift -I %t \
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// RUN: -enable-deserialization-safety \
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// RUN: -Xllvm -debug-only=Serialization 2>&1 \
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// RUN: | %FileCheck %t/Client.swift
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/// Works with swiftinterface.
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// RUN: rm %t/Lib.swiftmodule
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// RUN: %target-swift-frontend -typecheck %t/Client.swift -I %t
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import Lib
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func requireConformanceToPublicProtocol(_ a: PublicProtocol) {}
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requireConformanceToPublicProtocol(IndirectConformant())
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requireConformanceToPublicProtocol("string")
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// CHECK: Deserialized: 'IndirectConformant'
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// CHECK: Deserialized: 'PublicProtocol'
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// CHECK-NOT: Deserialized: 'InternalProtocol'
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