[analyzer] Very simple ObjC instance method inlining

- Retrieves the type of the object/receiver from the state.
- Binds self during stack setup.
- Only explores the path on which the method is inlined (no
bifurcation to explore the path on which the method is not inlined).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160991 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/StaticAnalyzer/Core/ProgramState.cpp b/lib/StaticAnalyzer/Core/ProgramState.cpp
index 6adc18c67c..20f1e226b8 100644
--- a/lib/StaticAnalyzer/Core/ProgramState.cpp
+++ b/lib/StaticAnalyzer/Core/ProgramState.cpp
@@ -731,3 +731,12 @@ bool ProgramState::isTainted(SymbolRef Sym, TaintTagType Kind) const {
   
   return Tainted;
 }
+
+DynamicTypeInfo ProgramState::getDynamicTypeInfo(const MemRegion *Reg) const {
+  if (const TypedRegion *TR = dyn_cast<TypedRegion>(Reg))
+    return DynamicTypeInfo(TR->getLocationType());
+  if (const SymbolicRegion *SR = dyn_cast<SymbolicRegion>(Reg))
+    return DynamicTypeInfo(SR->getSymbol()
+                             ->getType(getStateManager().getContext()));
+  return DynamicTypeInfo();
+}