[analyser] Factor out FindUniqueBinding from RetainCount checker.

So that others could use it as well. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153211 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 33 deletions

diff --git a/lib/StaticAnalyzer/Checkers/RetainCountChecker.cpp b/lib/StaticAnalyzer/Checkers/RetainCountChecker.cpp
index b06a50d856..4f21c2a16b 100644
--- a/lib/StaticAnalyzer/Checkers/RetainCountChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/RetainCountChecker.cpp
@@ -2106,38 +2106,6 @@ PathDiagnosticPiece *CFRefReportVisitor::VisitNode(const ExplodedNode *N,
   return P;
 }
 
-namespace {
-  class FindUniqueBinding :
-  public StoreManager::BindingsHandler {
-    SymbolRef Sym;
-    const MemRegion* Binding;
-    bool First;
-
-  public:
-    FindUniqueBinding(SymbolRef sym) : Sym(sym), Binding(0), First(true) {}
-
-    bool HandleBinding(StoreManager& SMgr, Store store, const MemRegion* R,
-                       SVal val) {
-
-      SymbolRef SymV = val.getAsSymbol();
-      if (!SymV || SymV != Sym)
-        return true;
-
-      if (Binding) {
-        First = false;
-        return false;
-      }
-      else
-        Binding = R;
-
-      return true;
-    }
-
-    operator bool() { return First && Binding; }
-    const MemRegion *getRegion() { return Binding; }
-  };
-}
-
 // Find the first node in the current function context that referred to the
 // tracked symbol and the memory location that value was stored to. Note, the
 // value is only reported if the allocation occurred in the same function as
@@ -2156,7 +2124,7 @@ GetAllocationSite(ProgramStateManager& StateMgr, const ExplodedNode *N,
     if (!B.lookup(Sym))
       break;
 
-    FindUniqueBinding FB(Sym);
+    StoreManager::FindUniqueBinding FB(Sym);
     StateMgr.iterBindings(St, FB);
     if (FB) FirstBinding = FB.getRegion();