Teach FunctionDecl::setPure() to (indirectly) mark the Abstract bit in
CXXRecordDecl::DefinitionData, rather than having Sema mark the bit.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114993 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Decl.cpp b/lib/AST/Decl.cpp
index 2f3c006..081e5ee 100644
--- a/lib/AST/Decl.cpp
+++ b/lib/AST/Decl.cpp
@@ -966,6 +966,13 @@
EndRangeLoc = B->getLocEnd();
}
+void FunctionDecl::setPure(bool P) {
+ IsPure = P;
+ if (P)
+ if (CXXRecordDecl *Parent = dyn_cast<CXXRecordDecl>(getDeclContext()))
+ Parent->markedVirtualFunctionPure();
+}
+
bool FunctionDecl::isMain() const {
ASTContext &Context = getASTContext();
return !Context.getLangOptions().Freestanding &&
diff --git a/lib/AST/DeclCXX.cpp b/lib/AST/DeclCXX.cpp
index 7cdffb7..036292b 100644
--- a/lib/AST/DeclCXX.cpp
+++ b/lib/AST/DeclCXX.cpp
@@ -319,8 +319,13 @@
return GetBestOverloadCandidateSimple(Found);
}
-void
-CXXRecordDecl::addedMember(Decl *D) {
+void CXXRecordDecl::markedVirtualFunctionPure() {
+ // C++ [class.abstract]p2:
+ // A class is abstract if it has at least one pure virtual function.
+ data().Abstract = true;
+}
+
+void CXXRecordDecl::addedMember(Decl *D) {
// Ignore friends and invalid declarations.
if (D->getFriendObjectKind() || D->isInvalidDecl())
return;