d293cbd5fd
Summary: This is the first part of work announced in "[RFC] Adding lifetime analysis to clang" [0], i.e. the addition of the [[gsl::Owner(T)]] and [[gsl::Pointer(T)]] attributes, which will enable user-defined types to participate in the lifetime analysis (which will be part of the next PR). The type `T` here is called "DerefType" in the paper, and denotes the type that an Owner owns and a Pointer points to. E.g. `std::vector<int>` should be annotated with `[[gsl::Owner(int)]]` and a `std::vector<int>::iterator` with `[[gsl::Pointer(int)]]`. [0] http://lists.llvm.org/pipermail/cfe-dev/2018-November/060355.html Reviewers: gribozavr Subscribers: xazax.hun, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D63954 llvm-svn: 367040
108 lines
3.9 KiB
C++
108 lines
3.9 KiB
C++
// RUN: %clang_cc1 -verify -ast-dump %s | \
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// RUN: FileCheck --implicit-check-not OwnerAttr --implicit-check-not PointerAttr %s
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int [[gsl::Owner]] i;
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// expected-error@-1 {{'Owner' attribute cannot be applied to types}}
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void [[gsl::Owner]] f();
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// expected-error@-1 {{'Owner' attribute cannot be applied to types}}
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[[gsl::Owner]] void f();
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// expected-warning@-1 {{'Owner' attribute only applies to structs}}
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union [[gsl::Owner(int)]] Union{};
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// expected-warning@-1 {{'Owner' attribute only applies to structs}}
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struct S {
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};
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S [[gsl::Owner]] Instance;
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// expected-error@-1 {{'Owner' attribute cannot be applied to types}}
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class [[gsl::Owner(7)]] OwnerDerefNoType{};
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// expected-error@-1 {{expected a type}}
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class [[gsl::Pointer("int")]] PointerDerefNoType{};
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// expected-error@-1 {{expected a type}}
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class [[gsl::Owner(int)]] [[gsl::Pointer(int)]] BothOwnerPointer{};
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// expected-error@-1 {{'Pointer' and 'Owner' attributes are not compatible}}
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// expected-note@-2 {{conflicting attribute is here}}
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// CHECK: CXXRecordDecl {{.*}} BothOwnerPointer
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// CHECK: OwnerAttr {{.*}} int
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class [[gsl::Owner(void)]] OwnerVoidDerefType{};
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// expected-error@-1 {{'void' is an invalid argument to attribute 'Owner'}}
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class [[gsl::Pointer(void)]] PointerVoidDerefType{};
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// expected-error@-1 {{'void' is an invalid argument to attribute 'Pointer'}}
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class [[gsl::Pointer(int)]] AddConflictLater{};
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// CHECK: CXXRecordDecl {{.*}} AddConflictLater
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// CHECK: PointerAttr {{.*}} int
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class [[gsl::Owner(int)]] AddConflictLater;
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// expected-error@-1 {{'Owner' and 'Pointer' attributes are not compatible}}
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// expected-note@-5 {{conflicting attribute is here}}
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// CHECK: CXXRecordDecl {{.*}} AddConflictLater
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// CHECK: PointerAttr {{.*}} Inherited int
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class [[gsl::Owner(int)]] AddConflictLater2{};
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// CHECK: CXXRecordDecl {{.*}} AddConflictLater2
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// CHECK: OwnerAttr {{.*}} int
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class [[gsl::Owner(float)]] AddConflictLater2;
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// expected-error@-1 {{'Owner' and 'Owner' attributes are not compatible}}
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// expected-note@-5 {{conflicting attribute is here}}
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// CHECK: CXXRecordDecl {{.*}} AddConflictLater
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// CHECK: OwnerAttr {{.*}} Inherited int
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class [[gsl::Owner()]] [[gsl::Owner(int)]] WithAndWithoutParameter{};
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// expected-error@-1 {{'Owner' and 'Owner' attributes are not compatible}}
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// expected-note@-2 {{conflicting attribute is here}}
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// CHECK: CXXRecordDecl {{.*}} WithAndWithoutParameter
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// CHECK: OwnerAttr
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class [[gsl::Owner(int &)]] ReferenceType{};
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// expected-error@-1 {{a reference type is an invalid argument to attribute 'Owner'}}
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class [[gsl::Pointer(int[])]] ArrayType{};
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// expected-error@-1 {{an array type is an invalid argument to attribute 'Pointer'}}
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class [[gsl::Owner]] OwnerMissingParameter{};
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// CHECK: CXXRecordDecl {{.*}} OwnerMissingParameter
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// CHECK: OwnerAttr
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class [[gsl::Pointer]] PointerMissingParameter{};
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// CHECK: CXXRecordDecl {{.*}} PointerMissingParameter
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// CHECK: PointerAttr
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class [[gsl::Owner()]] OwnerWithEmptyParameterList{};
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// CHECK: CXXRecordDecl {{.*}} OwnerWithEmptyParameterList
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// CHECK: OwnerAttr {{.*}}
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class [[gsl::Pointer()]] PointerWithEmptyParameterList{};
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// CHECK: CXXRecordDecl {{.*}} PointerWithEmptyParameterList
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// CHECK: PointerAttr {{.*}}
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struct [[gsl::Owner(int)]] AnOwner{};
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// CHECK: CXXRecordDecl {{.*}} AnOwner
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// CHECK: OwnerAttr {{.*}} int
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struct S;
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class [[gsl::Pointer(S)]] APointer{};
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// CHECK: CXXRecordDecl {{.*}} APointer
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// CHECK: PointerAttr {{.*}} S
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class [[gsl::Owner(int)]] [[gsl::Owner(int)]] DuplicateOwner{};
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// CHECK: CXXRecordDecl {{.*}} DuplicateOwner
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// CHECK: OwnerAttr {{.*}} int
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class [[gsl::Pointer(int)]] [[gsl::Pointer(int)]] DuplicatePointer{};
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// CHECK: CXXRecordDecl {{.*}} DuplicatePointer
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// CHECK: PointerAttr {{.*}} int
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class [[gsl::Owner(int)]] AddTheSameLater{};
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// CHECK: CXXRecordDecl {{.*}} AddTheSameLater
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// CHECK: OwnerAttr {{.*}} int
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class [[gsl::Owner(int)]] AddTheSameLater;
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// CHECK: CXXRecordDecl {{.*}} prev {{.*}} AddTheSameLater
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// CHECK: OwnerAttr {{.*}} int
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