diff options
Diffstat (limited to 'lib/Sema/SemaDeclCXX.cpp')
| -rw-r--r-- | lib/Sema/SemaDeclCXX.cpp | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/lib/Sema/SemaDeclCXX.cpp b/lib/Sema/SemaDeclCXX.cpp index cc0aadeec2..1da1884752 100644 --- a/lib/Sema/SemaDeclCXX.cpp +++ b/lib/Sema/SemaDeclCXX.cpp @@ -1311,29 +1311,25 @@ void Sema::ActOnBaseSpecifiers(Decl *ClassDecl, CXXBaseSpecifier **Bases, (CXXBaseSpecifier**)(Bases), NumBases); } -static CXXRecordDecl *GetClassForType(QualType T) { - if (const RecordType *RT = T->getAs<RecordType>()) - return cast<CXXRecordDecl>(RT->getDecl()); - else if (const InjectedClassNameType *ICT = T->getAs<InjectedClassNameType>()) - return ICT->getDecl(); - else - return 0; -} - /// \brief Determine whether the type \p Derived is a C++ class that is /// derived from the type \p Base. bool Sema::IsDerivedFrom(QualType Derived, QualType Base) { if (!getLangOpts().CPlusPlus) return false; - CXXRecordDecl *DerivedRD = GetClassForType(Derived); + CXXRecordDecl *DerivedRD = Derived->getAsCXXRecordDecl(); if (!DerivedRD) return false; - CXXRecordDecl *BaseRD = GetClassForType(Base); + CXXRecordDecl *BaseRD = Base->getAsCXXRecordDecl(); if (!BaseRD) return false; - + + // If either the base or the derived type is invalid, don't try to + // check whether one is derived from the other. + if (BaseRD->isInvalidDecl() || DerivedRD->isInvalidDecl()) + return false; + // FIXME: instantiate DerivedRD if necessary. We need a PoI for this. return DerivedRD->hasDefinition() && DerivedRD->isDerivedFrom(BaseRD); } @@ -1344,11 +1340,11 @@ bool Sema::IsDerivedFrom(QualType Derived, QualType Base, CXXBasePaths &Paths) { if (!getLangOpts().CPlusPlus) return false; - CXXRecordDecl *DerivedRD = GetClassForType(Derived); + CXXRecordDecl *DerivedRD = Derived->getAsCXXRecordDecl(); if (!DerivedRD) return false; - CXXRecordDecl *BaseRD = GetClassForType(Base); + CXXRecordDecl *BaseRD = Base->getAsCXXRecordDecl(); if (!BaseRD) return false; |