vsapsai created this revision. vsapsai added reviewers: rsmith, bruno, jansvoboda11. Herald added a subscriber: ributzka. vsapsai requested review of this revision. Herald added a project: clang.
While working on https://reviews.llvm.org/D110280 I've tried to merge decl contexts as it seems to be correct and matching our handling of decl contexts from different modules. It's not required for the fix in https://reviews.llvm.org/D110280 but it revealed a missing diagnostic, so separating this change into a separate commit. Renamed some variables to distinguish diagnostic like "declaration of 'x' does not match" for different cases. Repository: rG LLVM Github Monorepo https://reviews.llvm.org/D110287 Files: clang/lib/Serialization/ASTReaderDecl.cpp clang/test/Modules/odr_hash.mm Index: clang/test/Modules/odr_hash.mm =================================================================== --- clang/test/Modules/odr_hash.mm +++ clang/test/Modules/odr_hash.mm @@ -241,12 +241,12 @@ @end @interface Interface5 <T : I1 *> { @public - T<P1> x; + T<P1> y; } @end @interface Interface6 <T1 : I1 *, T2 : I2 *> { @public - T1 x; + T1 z; } @end #elif defined(SECOND) @@ -257,14 +257,21 @@ @end @interface Interface5 <T : I1 *> { @public - T<P1, P2> x; + T<P1, P2> y; } @end @interface Interface6 <T1 : I1 *, T2 : I2 *> { @public - T2 x; + T2 z; } @end +#else +// expected-error@first.h:* {{'Interface4::x' from module 'FirstModule' is not present in definition of 'Interface4' in module 'SecondModule'}} +// expected-note@second.h:* {{declaration of 'x' does not match}} +// expected-error@first.h:* {{'Interface5::y' from module 'FirstModule' is not present in definition of 'Interface5' in module 'SecondModule'}} +// expected-note@second.h:* {{declaration of 'y' does not match}} +// expected-error@first.h:* {{'Interface6::z' from module 'FirstModule' is not present in definition of 'Interface6' in module 'SecondModule'}} +// expected-note@second.h:* {{declaration of 'z' does not match}} #endif namespace Types { @@ -276,22 +283,22 @@ }; struct Invalid2 { Interface5 *I; - decltype(I->x) x; + decltype(I->y) y; }; struct Invalid3 { Interface6 *I; - decltype(I->x) x; + decltype(I->z) z; }; #else Invalid1 i1; // expected-error@first.h:* {{'Types::ObjCTypeParam::Invalid1::x' from module 'FirstModule' is not present in definition of 'Types::ObjCTypeParam::Invalid1' in module 'SecondModule'}} // expected-note@second.h:* {{declaration of 'x' does not match}} Invalid2 i2; -// expected-error@first.h:* {{'Types::ObjCTypeParam::Invalid2::x' from module 'FirstModule' is not present in definition of 'Types::ObjCTypeParam::Invalid2' in module 'SecondModule'}} -// expected-note@second.h:* {{declaration of 'x' does not match}} +// expected-error@first.h:* {{'Types::ObjCTypeParam::Invalid2::y' from module 'FirstModule' is not present in definition of 'Types::ObjCTypeParam::Invalid2' in module 'SecondModule'}} +// expected-note@second.h:* {{declaration of 'y' does not match}} Invalid3 i3; -// expected-error@first.h:* {{'Types::ObjCTypeParam::Invalid3::x' from module 'FirstModule' is not present in definition of 'Types::ObjCTypeParam::Invalid3' in module 'SecondModule'}} -// expected-note@second.h:* {{declaration of 'x' does not match}} +// expected-error@first.h:* {{'Types::ObjCTypeParam::Invalid3::z' from module 'FirstModule' is not present in definition of 'Types::ObjCTypeParam::Invalid3' in module 'SecondModule'}} +// expected-note@second.h:* {{declaration of 'z' does not match}} #endif } // namespace ObjCTypeParam Index: clang/lib/Serialization/ASTReaderDecl.cpp =================================================================== --- clang/lib/Serialization/ASTReaderDecl.cpp +++ clang/lib/Serialization/ASTReaderDecl.cpp @@ -1177,6 +1177,12 @@ void ASTDeclReader::MergeDefinitionData(ObjCInterfaceDecl *D, struct ObjCInterfaceDecl::DefinitionData &&NewDD) { + struct ObjCInterfaceDecl::DefinitionData &DD = D->data(); + if (DD.Definition != NewDD.Definition) { + Reader.MergedDeclContexts.insert( + std::make_pair(NewDD.Definition, DD.Definition)); + } + // FIXME: odr checking? }
Index: clang/test/Modules/odr_hash.mm =================================================================== --- clang/test/Modules/odr_hash.mm +++ clang/test/Modules/odr_hash.mm @@ -241,12 +241,12 @@ @end @interface Interface5 <T : I1 *> { @public - T<P1> x; + T<P1> y; } @end @interface Interface6 <T1 : I1 *, T2 : I2 *> { @public - T1 x; + T1 z; } @end #elif defined(SECOND) @@ -257,14 +257,21 @@ @end @interface Interface5 <T : I1 *> { @public - T<P1, P2> x; + T<P1, P2> y; } @end @interface Interface6 <T1 : I1 *, T2 : I2 *> { @public - T2 x; + T2 z; } @end +#else +// expected-error@first.h:* {{'Interface4::x' from module 'FirstModule' is not present in definition of 'Interface4' in module 'SecondModule'}} +// expected-note@second.h:* {{declaration of 'x' does not match}} +// expected-error@first.h:* {{'Interface5::y' from module 'FirstModule' is not present in definition of 'Interface5' in module 'SecondModule'}} +// expected-note@second.h:* {{declaration of 'y' does not match}} +// expected-error@first.h:* {{'Interface6::z' from module 'FirstModule' is not present in definition of 'Interface6' in module 'SecondModule'}} +// expected-note@second.h:* {{declaration of 'z' does not match}} #endif namespace Types { @@ -276,22 +283,22 @@ }; struct Invalid2 { Interface5 *I; - decltype(I->x) x; + decltype(I->y) y; }; struct Invalid3 { Interface6 *I; - decltype(I->x) x; + decltype(I->z) z; }; #else Invalid1 i1; // expected-error@first.h:* {{'Types::ObjCTypeParam::Invalid1::x' from module 'FirstModule' is not present in definition of 'Types::ObjCTypeParam::Invalid1' in module 'SecondModule'}} // expected-note@second.h:* {{declaration of 'x' does not match}} Invalid2 i2; -// expected-error@first.h:* {{'Types::ObjCTypeParam::Invalid2::x' from module 'FirstModule' is not present in definition of 'Types::ObjCTypeParam::Invalid2' in module 'SecondModule'}} -// expected-note@second.h:* {{declaration of 'x' does not match}} +// expected-error@first.h:* {{'Types::ObjCTypeParam::Invalid2::y' from module 'FirstModule' is not present in definition of 'Types::ObjCTypeParam::Invalid2' in module 'SecondModule'}} +// expected-note@second.h:* {{declaration of 'y' does not match}} Invalid3 i3; -// expected-error@first.h:* {{'Types::ObjCTypeParam::Invalid3::x' from module 'FirstModule' is not present in definition of 'Types::ObjCTypeParam::Invalid3' in module 'SecondModule'}} -// expected-note@second.h:* {{declaration of 'x' does not match}} +// expected-error@first.h:* {{'Types::ObjCTypeParam::Invalid3::z' from module 'FirstModule' is not present in definition of 'Types::ObjCTypeParam::Invalid3' in module 'SecondModule'}} +// expected-note@second.h:* {{declaration of 'z' does not match}} #endif } // namespace ObjCTypeParam Index: clang/lib/Serialization/ASTReaderDecl.cpp =================================================================== --- clang/lib/Serialization/ASTReaderDecl.cpp +++ clang/lib/Serialization/ASTReaderDecl.cpp @@ -1177,6 +1177,12 @@ void ASTDeclReader::MergeDefinitionData(ObjCInterfaceDecl *D, struct ObjCInterfaceDecl::DefinitionData &&NewDD) { + struct ObjCInterfaceDecl::DefinitionData &DD = D->data(); + if (DD.Definition != NewDD.Definition) { + Reader.MergedDeclContexts.insert( + std::make_pair(NewDD.Definition, DD.Definition)); + } + // FIXME: odr checking? }
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