[analyzer] Migrate AdjustedReturnValueChecker to CheckerV2.

llvm-svn: 126624

clang/lib/StaticAnalyzer/Checkers/AdjustedReturnValueChecker.cpp

@@ -13,34 +13,25 @@
 //
 //===----------------------------------------------------------------------===//
 
-#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/BugReporter.h"
-#include "clang/StaticAnalyzer/Core/PathSensitive/ExprEngine.h"
-#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerVisitor.h"
 
 using namespace clang;
 using namespace ento;
 
 namespace {
 class AdjustedReturnValueChecker : 
-    public CheckerVisitor<AdjustedReturnValueChecker> {      
+    public CheckerV2< check::PostStmt<CallExpr> > {
 public:
-  AdjustedReturnValueChecker() {}
-
-  void PostVisitCallExpr(CheckerContext &C, const CallExpr *CE);
-      
-  static void *getTag() {
-    static int x = 0; return &x;
-  }      
+  void checkPostStmt(const CallExpr *CE, CheckerContext &C) const;
 };
 }
 
-void ento::RegisterAdjustedReturnValueChecker(ExprEngine &Eng) {
-  Eng.registerCheck(new AdjustedReturnValueChecker());
-}
-
-void AdjustedReturnValueChecker::PostVisitCallExpr(CheckerContext &C,
-                                                   const CallExpr *CE) {
+void AdjustedReturnValueChecker::checkPostStmt(const CallExpr *CE,
+                                               CheckerContext &C) const {
   
   // Get the result type of the call.
   QualType expectedResultTy = CE->getType();
@@ -94,3 +85,7 @@ void AdjustedReturnValueChecker::PostVisitCallExpr(CheckerContext &C,
     C.generateNode(state->BindExpr(CE, V));
   }
 }
+
+void ento::registerAdjustedReturnValueChecker(CheckerManager &mgr) {
+  mgr.registerChecker<AdjustedReturnValueChecker>();
+}

clang/lib/StaticAnalyzer/Checkers/Checkers.td

@@ -75,6 +75,10 @@ def ObjCUnusedIvarsChecker : Checker<"UnusedIvars">,
 
 let ParentPackage = Core in {
 
+def AdjustedReturnValueChecker : Checker<"AdjustRet">,
+  HelpText<"Check to see if the return value of a function call is different than the caller expects">,
+  DescFile<"AdjustedReturnValueChecker.cpp">;
+
 def AttrNonNullChecker : Checker<"AttrNonNull">,
   HelpText<"Check for arguments declared to have nonnull attribute">,
   DescFile<"AttrNonNullChecker.cpp">;

clang/lib/StaticAnalyzer/Checkers/ExprEngine.cpp

@@ -319,7 +319,6 @@ static void RegisterInternalChecks(ExprEngine &Eng) {
   // their associated BugType will get registered with the BugReporter
   // automatically.  Note that the check itself is owned by the ExprEngine
   // object.
-  RegisterAdjustedReturnValueChecker(Eng);
   // CallAndMessageChecker should be registered before AttrNonNullChecker,
   // where we assume arguments are not undefined.
   RegisterCallAndMessageChecker(Eng);

clang/lib/StaticAnalyzer/Checkers/InternalChecks.h

@@ -22,7 +22,6 @@ namespace ento {
 class ExprEngine;
 
 // Foundational checks that handle basic semantics.
-void RegisterAdjustedReturnValueChecker(ExprEngine &Eng);
 void RegisterCallAndMessageChecker(ExprEngine &Eng);
 void RegisterDereferenceChecker(ExprEngine &Eng);