diff --git a/clang/lib/StaticAnalyzer/Core/BugReporterVisitors.cpp b/clang/lib/StaticAnalyzer/Core/BugReporterVisitors.cpp --- a/clang/lib/StaticAnalyzer/Core/BugReporterVisitors.cpp +++ b/clang/lib/StaticAnalyzer/Core/BugReporterVisitors.cpp @@ -2118,24 +2118,35 @@ } }; -class DefaultExpressionHandler final : public ExpressionHandler { +class NilReceiverHandler final : public ExpressionHandler { public: using ExpressionHandler::ExpressionHandler; Tracker::Result handle(const Expr *Inner, const ExplodedNode *InputNode, const ExplodedNode *LVNode, TrackingOptions Opts) override { - ProgramStateRef LVState = LVNode->getState(); - const StackFrameContext *SFC = LVNode->getStackFrame(); - PathSensitiveBugReport &Report = getParentTracker().getReport(); - Tracker::Result Result; - // The message send could be nil due to the receiver being nil. // At this point in the path, the receiver should be live since we are at // the message send expr. If it is nil, start tracking it. if (const Expr *Receiver = NilReceiverBRVisitor::getNilReceiver(Inner, LVNode)) - Result.combineWith(getParentTracker().track(Receiver, LVNode, Opts)); + return getParentTracker().track(Receiver, LVNode, Opts); + + return {}; + } +}; + +class DefaultExpressionHandler final : public ExpressionHandler { +public: + using ExpressionHandler::ExpressionHandler; + + Tracker::Result handle(const Expr *Inner, const ExplodedNode *InputNode, + const ExplodedNode *LVNode, + TrackingOptions Opts) override { + ProgramStateRef LVState = LVNode->getState(); + const StackFrameContext *SFC = LVNode->getStackFrame(); + PathSensitiveBugReport &Report = getParentTracker().getReport(); + Tracker::Result Result; // Track the index if this is an array subscript. if (const auto *Arr = dyn_cast(Inner)) @@ -2312,6 +2323,7 @@ Tracker::Tracker(PathSensitiveBugReport &Report) : Report(Report) { // Default expression handlers. addLowPriorityHandler(); + addLowPriorityHandler(); addLowPriorityHandler(); addLowPriorityHandler(); // Default store handlers.