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4945a56344
We can end up with a stack overflow if we encounter a very deeply nested type, or bad data that looks like one. Fail gracefully for types that are nested beyond a limit. By default, the limit is 50. rdar://100847548
35 lines
772 B
Swift
35 lines
772 B
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-build-swift -g -lswiftSwiftReflectionTest %s -o %t/reflect_deep_generic
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// RUN: %target-codesign %t/reflect_deep_generic
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// RUN: %target-run %target-swift-reflection-test %t/reflect_deep_generic | %FileCheck %s
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// REQUIRES: reflection_test_support
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// REQUIRES: executable_test
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// UNSUPPORTED: use_os_stdlib
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import SwiftReflectionTest
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protocol Nester {
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func nest() -> Nester
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}
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class C<T>: Nester {
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func nest() -> Nester {
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return C<Self>()
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}
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}
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var nester: Nester = C<Int>()
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for _ in 0..<10000 {
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nester = nester.nest()
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}
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// This will fail due to the excessively nested type, but we're making sure it
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// fails gracefully and doesn't crash.
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reflect(object: nester as AnyObject)
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doneReflecting()
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// CHECK: Done.
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