From 0ea8fea0ba63aa47a9d6ada923f82358e376b292 Mon Sep 17 00:00:00 2001
From: Ted Kremenek <kremenek@apple.com>
Date: Wed, 6 Feb 2008 02:50:36 +0000
Subject: [PATCH] Disabled operator= for ValueStateImpl. ValueState no longer
 inherits FoldingSetNode (not needed). Removed redundant operator=
 implementation for ValueState (it simply did the default behavior).

llvm-svn: 46794
---
 clang/Analysis/ValueState.h | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/clang/Analysis/ValueState.h b/clang/Analysis/ValueState.h
index b452979e2ee2..1067531f5bbe 100644
--- a/clang/Analysis/ValueState.h
+++ b/clang/Analysis/ValueState.h
@@ -125,7 +125,11 @@ namespace vstate {
 ///  for a "state" in our symbolic value tracking.  It is intended to be
 ///  used as a functional object; that is once it is created and made
 ///  "persistent" in a FoldingSet its values will never change.
-struct ValueStateImpl : public llvm::FoldingSetNode {
+class ValueStateImpl : public llvm::FoldingSetNode {
+private:
+  void operator=(const ValueStateImpl& R) const;
+
+public:
   vstate::VariableBindingsTy VariableBindings;
   vstate::ConstantNotEqTy    ConstantNotEq;
   vstate::ConstantEqTy       ConstantEq;
@@ -144,6 +148,8 @@ struct ValueStateImpl : public llvm::FoldingSetNode {
       ConstantNotEq(RHS.ConstantNotEq),
       ConstantEq(RHS.ConstantEq) {} 
   
+
+  
   /// Profile - Profile the contents of a ValueStateImpl object for use
   ///  in a FoldingSet.
   static void Profile(llvm::FoldingSetNodeID& ID, const ValueStateImpl& V) {
@@ -167,12 +173,11 @@ struct ValueStateImpl : public llvm::FoldingSetNode {
 ///  void* when being handled by GREngine.  It also forces us to unique states;
 ///  consequently, a ValueStateImpl* with a specific address will always refer
 ///  to the unique state with those values.
-class ValueState : public llvm::FoldingSetNode {
+class ValueState {
   ValueStateImpl* Data;
 public:
   ValueState(ValueStateImpl* D) : Data(D) {}
-  ValueState() : Data(0) {}  
-  void operator=(ValueStateImpl* D) { Data = D; }
+  ValueState() : Data(0) {}
   
   // Accessors.  
   ValueStateImpl* getImpl() const { return Data; }
-- 
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