| 1 | // RUN: %clang_cc1 -triple x86_64-windows-msvc -fexceptions -fcxx-exceptions -fms-extensions -verify %s -std=c++11 |
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| 2 | |
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| 3 | // The MS ABI has a few ways to generate constructor closures, which require |
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| 4 | // instantiating and checking the semantics of default arguments. Make sure we |
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| 5 | // do that right. |
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| 6 | |
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| 7 | template <typename T> |
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| 8 | struct DependentDefaultCtorArg { |
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| 9 | // expected-error@+1 {{type 'int' cannot be used prior to '::' because it has no members}} |
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| 10 | DependentDefaultCtorArg(int n = T::error); |
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| 11 | }; |
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| 12 | struct |
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| 13 | __declspec(dllexport) // expected-note {{due to 'ExportDefaultCtorClosure' being dllexported}} |
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| 14 | ExportDefaultCtorClosure // expected-note {{in instantiation of default function argument expression for 'DependentDefaultCtorArg<int>' required here}} expected-note {{implicit default constructor for 'ExportDefaultCtorClosure' first required here}} |
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| 15 | : DependentDefaultCtorArg<int> |
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| 16 | {}; |
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| 17 | |
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| 18 | template <typename T> |
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| 19 | struct DependentDefaultCopyArg { |
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| 20 | DependentDefaultCopyArg() {} |
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| 21 | // expected-error@+1 {{type 'int' cannot be used prior to '::' because it has no members}} |
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| 22 | DependentDefaultCopyArg(const DependentDefaultCopyArg &o, int n = T::member) {} |
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| 23 | }; |
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| 24 | |
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| 25 | struct HasMember { |
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| 26 | enum { member = 0 }; |
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| 27 | }; |
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| 28 | void UseDependentArg() { throw DependentDefaultCopyArg<HasMember>(); } |
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| 29 | |
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| 30 | void ErrorInDependentArg() { |
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| 31 | throw DependentDefaultCopyArg<int>(); // expected-note {{required here}} |
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| 32 | } |
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| 33 | |
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| 34 | struct HasCleanup { |
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| 35 | ~HasCleanup(); |
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| 36 | }; |
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| 37 | |
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| 38 | struct Default { |
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| 39 | Default(const Default &o, int d = (HasCleanup(), 42)); |
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| 40 | }; |
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| 41 | |
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| 42 | void f(const Default &d) { |
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| 43 | throw d; |
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| 44 | } |
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| 45 | |
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