Update AnalysisBasedWarnings.cpp

Author: shreya-jain

clang/lib/Sema/AnalysisBasedWarnings.cpp

@@ -2606,6 +2606,19 @@ class UnsafeBufferUsageReporter : public UnsafeBufferUsageHandler {
 #endif
   }
 
+  void handleUnsafeUniquePtrArrayAccess(const DynTypedNode &Node,
+                                        bool IsRelatedToDecl,
+                                        ASTContext &Ctx) override {
+    SourceLocation Loc;
+    std::string Message;
+
+    Loc = Node.get<Stmt>()->getBeginLoc();
+    Message = "Direct operator[] access on std::unique_ptr<T[]> is unsafe "
+              "(no bounds check).";
+    S.Diag(Loc, diag::warn_unsafe_buffer_usage_unique_ptr_array_access)
+        << Message << Node.getSourceRange();
+  }
+
   bool isSafeBufferOptOut(const SourceLocation &Loc) const override {
     return S.PP.isSafeBufferOptOut(S.getSourceManager(), Loc);
   }