diff options
Diffstat (limited to 'lib/Analysis/UndefinedAssignmentChecker.cpp')
-rw-r--r-- | lib/Analysis/UndefinedAssignmentChecker.cpp | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/lib/Analysis/UndefinedAssignmentChecker.cpp b/lib/Analysis/UndefinedAssignmentChecker.cpp deleted file mode 100644 index 4630b823a9..0000000000 --- a/lib/Analysis/UndefinedAssignmentChecker.cpp +++ /dev/null @@ -1,79 +0,0 @@ -//===--- UndefinedAssignmentChecker.h ---------------------------*- C++ -*--==// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This defines UndefinedAssginmentChecker, a builtin check in GRExprEngine that -// checks for assigning undefined values. -// -//===----------------------------------------------------------------------===// - -#include "GRExprEngineInternalChecks.h" -#include "clang/Analysis/PathSensitive/CheckerVisitor.h" -#include "clang/Analysis/PathSensitive/BugReporter.h" - -using namespace clang; - -namespace { -class UndefinedAssignmentChecker - : public CheckerVisitor<UndefinedAssignmentChecker> { - BugType *BT; -public: - UndefinedAssignmentChecker() : BT(0) {} - static void *getTag(); - virtual void PreVisitBind(CheckerContext &C, const Stmt *AssignE, - const Stmt *StoreE, SVal location, - SVal val); -}; -} - -void clang::RegisterUndefinedAssignmentChecker(GRExprEngine &Eng){ - Eng.registerCheck(new UndefinedAssignmentChecker()); -} - -void *UndefinedAssignmentChecker::getTag() { - static int x = 0; - return &x; -} - -void UndefinedAssignmentChecker::PreVisitBind(CheckerContext &C, - const Stmt *AssignE, - const Stmt *StoreE, - SVal location, - SVal val) { - if (!val.isUndef()) - return; - - ExplodedNode *N = C.GenerateSink(); - - if (!N) - return; - - if (!BT) - BT = new BuiltinBug("Assigned value is garbage or undefined"); - - // Generate a report for this bug. - EnhancedBugReport *R = new EnhancedBugReport(*BT, BT->getName(), N); - - if (AssignE) { - const Expr *ex = 0; - - if (const BinaryOperator *B = dyn_cast<BinaryOperator>(AssignE)) - ex = B->getRHS(); - else if (const DeclStmt *DS = dyn_cast<DeclStmt>(AssignE)) { - const VarDecl* VD = dyn_cast<VarDecl>(DS->getSingleDecl()); - ex = VD->getInit(); - } - if (ex) { - R->addRange(ex->getSourceRange()); - R->addVisitorCreator(bugreporter::registerTrackNullOrUndefValue, ex); - } - } - - C.EmitReport(R); -} - |