[analyzer] Migrate ArrayBoundChecker to CheckerV2.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126371 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 21 insertions, 18 deletions

diff --git a/lib/StaticAnalyzer/Checkers/ArrayBoundChecker.cpp b/lib/StaticAnalyzer/Checkers/ArrayBoundChecker.cpp
index 9194791fc0..25e224e50c 100644
--- a/lib/StaticAnalyzer/Checkers/ArrayBoundChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/ArrayBoundChecker.cpp
@@ -12,9 +12,11 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "InternalChecks.h"
+#include "ClangSACheckers.h"
+#include "clang/StaticAnalyzer/Core/CheckerV2.h"
+#include "clang/StaticAnalyzer/Core/CheckerManager.h"
+#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
 #include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
-#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerVisitor.h"
 #include "clang/StaticAnalyzer/Core/PathSensitive/ExprEngine.h"
 
 using namespace clang;
@@ -22,21 +24,15 @@ using namespace ento;
 
 namespace {
 class ArrayBoundChecker : 
-    public CheckerVisitor<ArrayBoundChecker> {      
-  BuiltinBug *BT;
+    public CheckerV2<check::Location> {
+  mutable llvm::OwningPtr<BuiltinBug> BT;
 public:
-  ArrayBoundChecker() : BT(0) {}
-  static void *getTag() { static int x = 0; return &x; }
-  void visitLocation(CheckerContext &C, const Stmt *S, SVal l, bool isLoad);
+  void checkLocation(SVal l, bool isLoad, CheckerContext &C) const;
 };
 }
 
-void ento::RegisterArrayBoundChecker(ExprEngine &Eng) {
-  Eng.registerCheck(new ArrayBoundChecker());
-}
-
-void ArrayBoundChecker::visitLocation(CheckerContext &C, const Stmt *S, SVal l,
-                                      bool isLoad) {
+void ArrayBoundChecker::checkLocation(SVal l, bool isLoad,
+                                      CheckerContext &C) const {
   // Check for out of bound array element access.
   const MemRegion *R = l.getAsRegion();
   if (!R)
@@ -69,8 +65,8 @@ void ArrayBoundChecker::visitLocation(CheckerContext &C, const Stmt *S, SVal l,
       return;
   
     if (!BT)
-      BT = new BuiltinBug("Out-of-bound array access",
-                       "Access out-of-bound array element (buffer overflow)");
+      BT.reset(new BuiltinBug("Out-of-bound array access",
+                       "Access out-of-bound array element (buffer overflow)"));
 
     // FIXME: It would be nice to eventually make this diagnostic more clear,
     // e.g., by referencing the original declaration or by saying *why* this
@@ -80,7 +76,7 @@ void ArrayBoundChecker::visitLocation(CheckerContext &C, const Stmt *S, SVal l,
     RangedBugReport *report = 
       new RangedBugReport(*BT, BT->getDescription(), N);
 
-    report->addRange(S->getSourceRange());
+    report->addRange(C.getStmt()->getSourceRange());
     C.EmitReport(report);
     return;
   }
@@ -90,3 +86,7 @@ void ArrayBoundChecker::visitLocation(CheckerContext &C, const Stmt *S, SVal l,
   assert(StInBound);
   C.addTransition(StInBound);
 }
+
+void ento::registerArrayBoundChecker(CheckerManager &mgr) {
+  mgr.registerChecker<ArrayBoundChecker>();
+}
diff --git a/lib/StaticAnalyzer/Checkers/Checkers.td b/lib/StaticAnalyzer/Checkers/Checkers.td
index df959b85c2..ea1686a0b5 100644
--- a/lib/StaticAnalyzer/Checkers/Checkers.td
+++ b/lib/StaticAnalyzer/Checkers/Checkers.td
@@ -179,6 +179,11 @@ def ReturnPointerRangeChecker : Checker<"ReturnPtrRange">,
   HelpText<"Check for an out-of-bound pointer being returned to callers">,
   DescFile<"ReturnPointerRangeChecker.cpp">;
 
+def ArrayBoundChecker : Checker<"ArrayBound">,
+  InPackage<CoreExperimental>,
+  HelpText<"Check for an out-of-bound pointer being returned to callers">,
+  DescFile<"ArrayBoundChecker.cpp">;
+
 def ObjCDeallocChecker : Checker<"Dealloc">,
   InPackage<CocoaExperimental>,
   HelpText<"Warn about Objective-C classes that lack a correct implementation of -dealloc">,
diff --git a/lib/StaticAnalyzer/Checkers/ExperimentalChecks.cpp b/lib/StaticAnalyzer/Checkers/ExperimentalChecks.cpp
index bcae801e29..ebd128b1c5 100644
--- a/lib/StaticAnalyzer/Checkers/ExperimentalChecks.cpp
+++ b/lib/StaticAnalyzer/Checkers/ExperimentalChecks.cpp
@@ -29,6 +29,5 @@ void ento::RegisterExperimentalInternalChecks(ExprEngine &Eng) {
   // These are internal checks that should eventually migrate to
   // RegisterInternalChecks() once they have been further tested.
   
-  RegisterArrayBoundChecker(Eng);
   RegisterCastSizeChecker(Eng);
 }
diff --git a/lib/StaticAnalyzer/Checkers/InternalChecks.h b/lib/StaticAnalyzer/Checkers/InternalChecks.h
index f6246f4fb1..9ccc7b42d7 100644
--- a/lib/StaticAnalyzer/Checkers/InternalChecks.h
+++ b/lib/StaticAnalyzer/Checkers/InternalChecks.h
@@ -23,7 +23,6 @@ class ExprEngine;
 
 // Foundational checks that handle basic semantics.
 void RegisterAdjustedReturnValueChecker(ExprEngine &Eng);
-void RegisterArrayBoundChecker(ExprEngine &Eng);
 void RegisterArrayBoundCheckerV2(ExprEngine &Eng);
 void RegisterAttrNonNullChecker(ExprEngine &Eng);
 void RegisterBuiltinFunctionChecker(ExprEngine &Eng);