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// RUN: %empty-directory(%t)
// RUN: %target-build-swift-dylib(%t/%target-library-name(resil)) -enable-library-evolution %S/Inputs/resilient_generic_struct_v1.swift -emit-module -emit-module-path %t/resil.swiftmodule -module-name resil
// RUN: %target-codesign %t/%target-library-name(resil)
// RUN: %target-build-swift %s -L %t -I %t -lresil -o %t/main %target-rpath(%t)
// RUN: %target-codesign %t/main
// RUN: %target-build-swift-dylib(%t/%target-library-name(resil)) -enable-library-evolution %S/Inputs/resilient_generic_struct_v2.swift -emit-module -emit-module-path %t/resil.swiftmodule -module-name resil
// RUN: %target-codesign %t/%target-library-name(resil)
// RUN: %target-run %t/main %t/%target-library-name(resil)
// REQUIRES: executable_test
// UNSUPPORTED: use_os_stdlib
// UNSUPPORTED: back_deployment_runtime
import StdlibUnittest
// We build this code against a version of 'resil' where
// ResilientGenericStruct<T> doesn't store a T, then switch the
// dynamic library to a new version where it does, introducing
// an unresolvable dynamic cycle.
//
// It would also be sufficient to demonstrate this crash if the
// compiler *actually* didn't know about the internal implementation
// details of 'resil' when building this file, but since it currently
// still does, it'll report a cycle immediately if we don't pull
// this switcharoo.
import resil
var DynamicMetadataCycleTests =
TestSuite("Unresolvable dynamic metadata cycle tests")
enum test0_Node {
case link(ResilientGenericStruct<test0_Node>)
}
DynamicMetadataCycleTests.test("cycle through enum")
.crashOutputMatches("runtime error: unresolvable type metadata dependency cycle detected")
.crashOutputMatches(" Request for transitive completion of main.test0_Node")
.crashOutputMatches(" depends on layout of resil.ResilientGenericStruct<main.test0_Node")
.crashOutputMatches(" depends on layout of main.test0_Node")
.code {
expectCrashLater()
_blackHole(test0_Node.self)
}
runAllTests()
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