1 files changed, 33 insertions, 0 deletions
diff --git a/lib/StaticAnalyzer/Core/CheckerContext.cpp b/lib/StaticAnalyzer/Core/CheckerContext.cpp
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+++ b/lib/StaticAnalyzer/Core/CheckerContext.cpp
@@ -0,0 +1,33 @@
+//== CheckerContext.cpp - Context info for path-sensitive checkers-----------=//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  This file defines CheckerContext that provides contextual info for
+//  path-sensitive checkers.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
+using namespace clang;
+using namespace ento;
+
+CheckerContext::~CheckerContext() {
+  // Do we need to autotransition?  'Dst' can get populated in a variety of
+  // ways, including 'addTransition()' adding the predecessor node to Dst
+  // without actually generated a new node.  We also shouldn't autotransition
+  // if we are building sinks or we generated a node and decided to not
+  // add it as a transition.
+  if (Dst.size() == size && !B.BuildSinks && !B.hasGeneratedNode) {
+    if (ST && ST != B.GetState(Pred)) {
+      static int autoTransitionTag = 0;
+      addTransition(ST, &autoTransitionTag);
+    }
+    else
+      Dst.Add(Pred);
+  }
+}