Implement __has_virtual_destructor. Patch by Steven Watanabe.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112905 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclCXX.cpp b/lib/AST/DeclCXX.cpp
index f404155..f2f0694 100644
--- a/lib/AST/DeclCXX.cpp
+++ b/lib/AST/DeclCXX.cpp
@@ -609,7 +609,8 @@
DeclContext::lookup_const_iterator I, E;
llvm::tie(I, E) = lookup(Name);
- assert(I != E && "Did not find a destructor!");
+ if (I == E)
+ return 0;
CXXDestructorDecl *Dtor = cast<CXXDestructorDecl>(*I);
assert(++I == E && "Found more than one destructor!");
diff --git a/lib/AST/ExprCXX.cpp b/lib/AST/ExprCXX.cpp
index ae57f4c..0a10130 100644
--- a/lib/AST/ExprCXX.cpp
+++ b/lib/AST/ExprCXX.cpp
@@ -488,6 +488,16 @@
}
}
return false;
+ case UTT_HasVirtualDestructor:
+ // http://gcc.gnu.org/onlinedocs/gcc/Type-Traits.html:
+ // If type is a class type with a virtual destructor ([class.dtor])
+ // then the trait is true, else it is false.
+ if (const RecordType *Record = QueriedType->getAs<RecordType>()) {
+ CXXRecordDecl *RD = cast<CXXRecordDecl>(Record->getDecl());
+ if (CXXDestructorDecl *Destructor = RD->getDestructor())
+ return Destructor->isVirtual();
+ }
+ return false;
}
}