Add methods to remove a GDM entry.

Instead of setting the ReturnExpr GDM to NULL, remove it.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99470 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 12 insertions, 0 deletions

diff --git a/lib/Checker/GRState.cpp b/lib/Checker/GRState.cpp
index 2defbcd93c..f2952bc9be 100644
--- a/lib/Checker/GRState.cpp
+++ b/lib/Checker/GRState.cpp
@@ -227,6 +227,18 @@ const GRState* GRStateManager::addGDM(const GRState* St, void* Key, void* Data){
   return getPersistentState(NewSt);
 }
 
+const GRState *GRStateManager::removeGDM(const GRState *state, void *Key) {
+  GRState::GenericDataMap OldM = state->getGDM();
+  GRState::GenericDataMap NewM = GDMFactory.Remove(OldM, Key);
+
+  if (NewM == OldM)
+    return state;
+
+  GRState NewState = *state;
+  NewState.GDM = NewM;
+  return getPersistentState(NewState);
+}
+
 //===----------------------------------------------------------------------===//
 // Utility.
 //===----------------------------------------------------------------------===//