add a new isNull() method to DeclGroupRef.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68909 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaStmt.cpp b/lib/Sema/SemaStmt.cpp
index d2e1586..1428c48 100644
--- a/lib/Sema/SemaStmt.cpp
+++ b/lib/Sema/SemaStmt.cpp
@@ -40,10 +40,11 @@
Sema::OwningStmtResult Sema::ActOnDeclStmt(DeclGroupPtrTy dg,
SourceLocation StartLoc,
SourceLocation EndLoc) {
- // If we have an invalid decl, just return an error.
- if (!dg) return StmtError();
-
DeclGroupRef DG = dg.getAsVal<DeclGroupRef>();
+
+ // If we have an invalid decl, just return an error.
+ if (DG.isNull()) return StmtError();
+
return Owned(new (Context) DeclStmt(DG, StartLoc, EndLoc));
}