Pull UndefinedArgChecker into its own files.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85875 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/UndefinedArgChecker.cpp b/lib/Analysis/UndefinedArgChecker.cpp
new file mode 100644
index 0000000..a229f55
--- /dev/null
+++ b/lib/Analysis/UndefinedArgChecker.cpp
@@ -0,0 +1,43 @@
+//===--- UndefinedArgChecker.h - Undefined arguments checker ----*- C++ -*--==//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This defines BadCallChecker, a builtin check in GRExprEngine that performs
+// checks for undefined arguments.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Analysis/PathSensitive/Checkers/UndefinedArgChecker.h"
+#include "clang/Analysis/PathSensitive/BugReporter.h"
+
+using namespace clang;
+
+void *UndefinedArgChecker::getTag() {
+ static int x = 0;
+ return &x;
+}
+
+void UndefinedArgChecker::PreVisitCallExpr(CheckerContext &C,
+ const CallExpr *CE){
+ for (CallExpr::const_arg_iterator I = CE->arg_begin(), E = CE->arg_end();
+ I != E; ++I) {
+ if (C.getState()->getSVal(*I).isUndef()) {
+ if (ExplodedNode *N = C.GenerateNode(CE, true)) {
+ if (!BT)
+ BT = new BugType("Pass-by-value argument in function call is "
+ "undefined", "Logic error");
+ // Generate a report for this bug.
+ EnhancedBugReport *R = new EnhancedBugReport(*BT, BT->getName().c_str(),
+ N);
+ R->addRange((*I)->getSourceRange());
+ R->addVisitorCreator(bugreporter::registerTrackNullOrUndefValue, *I);
+ C.EmitReport(R);
+ }
+ }
+ }
+}