1 files changed, 99 insertions, 0 deletions
diff --git a/contrib/llvm/tools/clang/lib/StaticAnalyzer/Checkers/AnalysisOrderChecker.cpp b/contrib/llvm/tools/clang/lib/StaticAnalyzer/Checkers/AnalysisOrderChecker.cpp
new file mode 100644
index 000000000000..90d5c0e36a47
--- /dev/null
+++ b/contrib/llvm/tools/clang/lib/StaticAnalyzer/Checkers/AnalysisOrderChecker.cpp
@@ -0,0 +1,99 @@
+//===- AnalysisOrderChecker - Print callbacks called ------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This checker prints callbacks that are called during analysis.
+// This is required to ensure that callbacks are fired in order
+// and do not duplicate or get lost.
+// Feel free to extend this checker with any callback you need to check.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ClangSACheckers.h"
+#include "clang/StaticAnalyzer/Core/Checker.h"
+#include "clang/StaticAnalyzer/Core/CheckerManager.h"
+#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
+
+using namespace clang;
+using namespace ento;
+
+namespace {
+
+class AnalysisOrderChecker
+    : public Checker<check::PreStmt<CastExpr>,
+                     check::PostStmt<CastExpr>,
+                     check::PreStmt<ArraySubscriptExpr>,
+                     check::PostStmt<ArraySubscriptExpr>,
+                     check::Bind,
+                     check::RegionChanges> {
+  bool isCallbackEnabled(AnalyzerOptions &Opts, StringRef CallbackName) const {
+    return Opts.getBooleanOption("*", false, this) ||
+        Opts.getBooleanOption(CallbackName, false, this);
+  }
+
+  bool isCallbackEnabled(CheckerContext &C, StringRef CallbackName) const {
+    AnalyzerOptions &Opts = C.getAnalysisManager().getAnalyzerOptions();
+    return isCallbackEnabled(Opts, CallbackName);
+  }
+
+  bool isCallbackEnabled(ProgramStateRef State, StringRef CallbackName) const {
+    AnalyzerOptions &Opts = State->getStateManager().getOwningEngine()
+                                 ->getAnalysisManager().getAnalyzerOptions();
+    return isCallbackEnabled(Opts, CallbackName);
+  }
+
+public:
+  void checkPreStmt(const CastExpr *CE, CheckerContext &C) const {
+    if (isCallbackEnabled(C, "PreStmtCastExpr"))
+      llvm::errs() << "PreStmt<CastExpr> (Kind : " << CE->getCastKindName()
+                   << ")\n";
+  }
+
+  void checkPostStmt(const CastExpr *CE, CheckerContext &C) const {
+    if (isCallbackEnabled(C, "PostStmtCastExpr"))
+      llvm::errs() << "PostStmt<CastExpr> (Kind : " << CE->getCastKindName()
+                   << ")\n";
+  }
+
+  void checkPreStmt(const ArraySubscriptExpr *SubExpr,
+                    CheckerContext &C) const {
+    if (isCallbackEnabled(C, "PreStmtArraySubscriptExpr"))
+      llvm::errs() << "PreStmt<ArraySubscriptExpr>\n";
+  }
+
+  void checkPostStmt(const ArraySubscriptExpr *SubExpr,
+                     CheckerContext &C) const {
+    if (isCallbackEnabled(C, "PostStmtArraySubscriptExpr"))
+      llvm::errs() << "PostStmt<ArraySubscriptExpr>\n";
+  }
+
+  void checkBind(SVal Loc, SVal Val, const Stmt *S, CheckerContext &C) const {
+    if (isCallbackEnabled(C, "Bind"))
+      llvm::errs() << "Bind\n";
+  }
+
+  ProgramStateRef
+  checkRegionChanges(ProgramStateRef State,
+                     const InvalidatedSymbols *Invalidated,
+                     ArrayRef<const MemRegion *> ExplicitRegions,
+                     ArrayRef<const MemRegion *> Regions,
+                     const LocationContext *LCtx, const CallEvent *Call) const {
+    if (isCallbackEnabled(State, "RegionChanges"))
+      llvm::errs() << "RegionChanges\n";
+    return State;
+  }
+};
+} // end anonymous namespace
+
+//===----------------------------------------------------------------------===//
+// Registration.
+//===----------------------------------------------------------------------===//
+
+void ento::registerAnalysisOrderChecker(CheckerManager &mgr) {
+  mgr.registerChecker<AnalysisOrderChecker>();
+}