[analyzer] Migrate argument invalidation from CFRefCount to ExprEngine.

This is a common path for function and C++ method calls, Objective-C messages and property accesses, and C++ construct-exprs.

As support, add message receiver accessors to ObjCMessage and CallOrObjCMessage.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138718 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/StaticAnalyzer/Core/ObjCMessage.cpp b/lib/StaticAnalyzer/Core/ObjCMessage.cpp
index 82b0e7c305..112c468210 100644
--- a/lib/StaticAnalyzer/Core/ObjCMessage.cpp
+++ b/lib/StaticAnalyzer/Core/ObjCMessage.cpp
@@ -150,3 +150,9 @@ SVal CallOrObjCMessage::getCXXCallee() const {
     cast<CXXMemberCallExpr>(ActualCall)->getImplicitObjectArgument();
   return State->getSVal(callee);  
 }
+
+SVal
+CallOrObjCMessage::getInstanceMessageReceiver(const LocationContext *LC) const {
+  assert(isObjCMessage());
+  return Msg.getInstanceReceiverSVal(State, LC);
+}