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This makes sure that when Swift is generating a `.swiftinterface` file for a Swift module with a dependency on C++ module, `-enable-experimental-cxx-interop` is emitted under `// swift-module-flags:`. The module interface might refer to C++ symbols which are not available in Swift without C++ interop enabled. This caused a build error for Swift LLVM bindings during `verify-module-interface` stage: Swift tried to import the module interface and couldn't find C++ stdlib headers because C++ interop was disabled.
25 lines
876 B
Swift
25 lines
876 B
Swift
// RUN: %empty-directory(%t)
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// RUN: cd %t
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// RUN: %target-build-swift -I %S/Inputs -Xfrontend -enable-experimental-cxx-interop %S/Inputs/namespace-extension-lib.swift -emit-module -emit-library -static -module-name NamespaceExtensionLib
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// RUN: %target-build-swift %s -I %S/Inputs -Xfrontend -enable-experimental-cxx-interop -o %t/run -I %t/ -L %t/ -lNamespaceExtensionLib
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// RUN: %target-codesign %t/run
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// RUN: %target-run %t/run
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//
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// REQUIRES: executable_test
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// XFAIL: OS=windows-msvc
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import StdlibUnittest
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import Namespaces
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import NamespaceExtensionLib
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var NamespacesTestSuite = TestSuite("Extension in library on namespace")
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NamespacesTestSuite.test("Call functions from extension") {
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expectEqual(Namespace.Parent.test(), 42)
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expectEqual(Namespace.Parent.Child.test(), 52)
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expectEqual(Namespace.NestedNamespace.NestedStruct().test(), 62)
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}
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runAllTests()
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