1 // Test without serialization: 2 // RUN: %clang_cc1 -fsyntax-only %s -ast-dump -std=c++17 | FileCheck %s 3 // 4 // Test with serialization: 5 // RUN: %clang_cc1 -std=c++17 -emit-pch -o %t %s 6 // RUN: %clang_cc1 -x c++ -std=c++17 -include-pch %t -ast-dump-all /dev/null \ 7 // RUN: | sed -e "s/ <undeserialized declarations>//" -e "s/ imported//" \ 8 // RUN: | FileCheck %s 9 10 namespace PR46111 { 11 template <typename> 12 struct S; 13 14 template <typename T> 15 struct HasDeductionGuide { 16 typedef PR46111::S<T> STy; 17 HasDeductionGuide(typename STy::Child); 18 }; 19 20 // This causes deduction guides to be generated for all constructors. 21 HasDeductionGuide()->HasDeductionGuide<int>; 22 23 template <typename T> 24 struct HasDeductionGuideTypeAlias { 25 using STy = PR46111::S<T>; 26 HasDeductionGuideTypeAlias(typename STy::Child); 27 }; 28 29 // This causes deduction guides to be generated for all constructors. 30 HasDeductionGuideTypeAlias()->HasDeductionGuideTypeAlias<int>; 31 32 // The parameter to this one shouldn't be an elaborated type. 33 // CHECK: CXXDeductionGuideDecl {{.*}} implicit <deduction guide for HasDeductionGuide> 'auto (typename STy::Child) -> HasDeductionGuide<T>' 34 // CHECK: CXXDeductionGuideDecl {{.*}} implicit <deduction guide for HasDeductionGuide> 'auto (HasDeductionGuide<T>) -> HasDeductionGuide<T>' 35 // CHECK: CXXDeductionGuideDecl {{.*}} <deduction guide for HasDeductionGuide> 'auto () -> HasDeductionGuide<int>' 36 // CHECK: CXXDeductionGuideDecl {{.*}} implicit <deduction guide for HasDeductionGuideTypeAlias> 'auto (typename STy::Child) -> HasDeductionGuideTypeAlias<T>' 37 // CHECK: CXXDeductionGuideDecl {{.*}} implicit <deduction guide for HasDeductionGuideTypeAlias> 'auto (HasDeductionGuideTypeAlias<T>) -> HasDeductionGuideTypeAlias<T>' 38 // CHECK: CXXDeductionGuideDecl {{.*}} <deduction guide for HasDeductionGuideTypeAlias> 'auto () -> HasDeductionGuideTypeAlias<int>' 39 } // namespace PR46111 40