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764408a60d
runtimes The runtime was changed in "Eliminate priority inversions in the metadata completion runtime". rdar://86643295
52 lines
2.0 KiB
Swift
52 lines
2.0 KiB
Swift
// RUN: %empty-directory(%t)
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// 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
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// RUN: %target-codesign %t/%target-library-name(resil)
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// RUN: %target-build-swift %s -L %t -I %t -lresil -o %t/main %target-rpath(%t)
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// RUN: %target-codesign %t/main
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// 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
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// RUN: %target-codesign %t/%target-library-name(resil)
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// RUN: %target-run %t/main %t/%target-library-name(resil)
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// REQUIRES: executable_test
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// UNSUPPORTED: use_os_stdlib
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// UNSUPPORTED: back_deployment_runtime
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import StdlibUnittest
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// We build this code against a version of 'resil' where
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// ResilientGenericStruct<T> doesn't store a T, then switch the
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// dynamic library to a new version where it does, introducing
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// an unresolvable dynamic cycle.
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//
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// It would also be sufficient to demonstrate this crash if the
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// compiler *actually* didn't know about the internal implementation
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// details of 'resil' when building this file, but since it currently
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// still does, it'll report a cycle immediately if we don't pull
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// this switcharoo.
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import resil
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var DynamicMetadataCycleTests =
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TestSuite("Unresolvable dynamic metadata cycle tests")
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enum test0_Node {
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case link(ResilientGenericStruct<test0_Node>)
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}
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DynamicMetadataCycleTests.test("cycle through enum")
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.crashOutputMatches("runtime error: unresolvable type metadata dependency cycle detected")
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.crashOutputMatches(" Request for transitive completion of main.test0_Node")
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.crashOutputMatches(" depends on layout of resil.ResilientGenericStruct<main.test0_Node")
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.crashOutputMatches(" depends on layout of main.test0_Node")
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.code {
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expectCrashLater()
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_blackHole(test0_Node.self)
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}
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runAllTests()
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