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// RUN: %empty-directory(%t)
// RUN: split-file %s %t
// RUN: %target-swift-emit-module-interface(%t/DefinesProtocol.swiftinterface) -I %t %t/DefinesProtocol.swift -module-name DefinesProtocol
// RUN: %target-swift-typecheck-module-from-interface(%t/DefinesProtocol.swiftinterface) -I %t -module-name DefinesProtocol
// RUN: %target-swift-emit-module-interface(%t/DefinesTypealias.swiftinterface) -I %t %t/DefinesTypealias.swift -module-name DefinesTypealias
// RUN: %target-swift-typecheck-module-from-interface(%t/DefinesTypealias.swiftinterface) -I %t -module-name DefinesTypealias
// RUN: %target-swift-emit-module-interface(%t/DefinesStruct.swiftinterface) -I %t %t/DefinesStruct.swift -module-name DefinesStruct
// RUN: %target-swift-typecheck-module-from-interface(%t/DefinesStruct.swiftinterface) -I %t -module-name DefinesStruct
// RUN: %target-swift-emit-module-interface(%t/DefinesExtension.swiftinterface) -I %t %t/DefinesExtension.swift -module-name DefinesExtension
// RUN: %target-swift-typecheck-module-from-interface(%t/DefinesExtension.swiftinterface) -I %t -module-name DefinesExtension
// RUN: %target-swift-emit-module-interface(%t/Client.swiftinterface) -verify -I %t %t/File2.swift %t/File1.swift -module-name Client
// RUN: %target-swift-typecheck-module-from-interface(%t/Client.swiftinterface) -I %t -module-name Client
// RUN: %FileCheck %t/File2.swift < %t/Client.swiftinterface
//--- DefinesProtocol.swift
public protocol P {}
//--- DefinesTypealias.swift
import DefinesProtocol
public typealias Q = P
//--- DefinesStruct.swift
public struct C {}
//--- DefinesExtension.swift
import DefinesStruct
extension C {
public func foo() {}
}
//--- File1.swift
import DefinesExtension
//--- File2.swift
// CHECK: import DefinesExtension
// CHECK-NEXT: import DefinesProtocol
// CHECK-NEXT: import DefinesStruct
// CHECK-NEXT: import DefinesTypealias
import DefinesTypealias
import DefinesStruct
public func takesQ<T>(_ b: T) where T: Q { }
// expected-warning @-1 {{'Q' aliases 'DefinesProtocol.P' and cannot be used here because 'DefinesProtocol' was not imported by this file; this is an error in the Swift 6 language mode}}
// expected-note @-2 {{The missing import of module 'DefinesProtocol' will be added implicitly}}
@inlinable public func takesC(_ c: C) {
c.foo()
// expected-warning @-1 {{instance method 'foo()' cannot be used in an '@inlinable' function because 'DefinesExtension' was not imported by this file; this is an error in the Swift 6 language mode}}
// expected-note @-2 {{The missing import of module 'DefinesExtension' will be added implicitly}}
}
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