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This is required to make the compiler distinguish between instantiations of `std::function`. Previously, when generating a Swift type name for a `std::function` instantiation, we would always emit `_` as the template parameter. If someone referenced two different instantiations of `std::function` in a Swift module, they would get mangled with the same name, triggering linker errors later. rdar://103979602
22 lines
866 B
C++
22 lines
866 B
C++
#ifndef TEST_INTEROP_CXX_TEMPLATES_INPUTS_CLASS_TEMPLATE_WITH_FUNCTION_ARGUMENT_H
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#define TEST_INTEROP_CXX_TEMPLATES_INPUTS_CLASS_TEMPLATE_WITH_FUNCTION_ARGUMENT_H
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template <typename Fn>
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class function_wrapper;
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template <typename Ret, typename... Params>
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class function_wrapper<Ret(Params...)> {
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Ret (*fn)(Params... params) = nullptr;
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};
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typedef function_wrapper<bool(bool)> FuncBoolToBool;
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typedef function_wrapper<bool()> FuncVoidToBool;
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typedef function_wrapper<void(bool)> FuncBoolToVoid;
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typedef function_wrapper<void()> FuncVoidToVoid;
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typedef function_wrapper<int(int)> FuncIntToInt;
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typedef function_wrapper<int(int, int)> FuncIntIntToInt;
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typedef function_wrapper<void(int, int)> FuncIntIntToVoid;
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typedef function_wrapper<void(int, int, bool)> FuncIntIntBoolToVoid;
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#endif // TEST_INTEROP_CXX_TEMPLATES_INPUTS_CLASS_TEMPLATE_WITH_FUNCTION_ARGUMENT_H
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