[analyzer] Add checker callback for beginning of function.

Add a checker callback that is called when the analyzer starts analyzing a
function either at the top level or when inlined. This will be used by a
follow-on patch making the DeallocChecker path sensitive.

Differential Revision: http://reviews.llvm.org/D17418

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261293 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/StaticAnalyzer/Checkers/TraversalChecker.cpp b/lib/StaticAnalyzer/Checkers/TraversalChecker.cpp
index d02d2df1c5..8ad962875b 100644
--- a/lib/StaticAnalyzer/Checkers/TraversalChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/TraversalChecker.cpp
@@ -25,9 +25,11 @@ using namespace ento;
 
 namespace {
 class TraversalDumper : public Checker< check::BranchCondition,
+                                        check::BeginFunction,
                                         check::EndFunction > {
 public:
   void checkBranchCondition(const Stmt *Condition, CheckerContext &C) const;
+  void checkBeginFunction(CheckerContext &C) const;
   void checkEndFunction(CheckerContext &C) const;
 };
 }
@@ -50,6 +52,10 @@ void TraversalDumper::checkBranchCondition(const Stmt *Condition,
                << Parent->getStmtClassName() << "\n";
 }
 
+void TraversalDumper::checkBeginFunction(CheckerContext &C) const {
+  llvm::outs() << "--BEGIN FUNCTION--\n";
+}
+
 void TraversalDumper::checkEndFunction(CheckerContext &C) const {
   llvm::outs() << "--END FUNCTION--\n";
 }