From 88eaf075c56672761b72cc50957db4a35bf24ebd Mon Sep 17 00:00:00 2001
From: Anders Carlsson <andersca@mac.com>
Date: Sat, 30 May 2009 22:38:53 +0000
Subject: [PATCH] Clean up the newly added C++ AST nodes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72643 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/clang/AST/ExprCXX.h | 26 +++++++++++++++++++++++---
 lib/AST/ExprCXX.cpp         | 27 +++++++++++++++++++++++++--
 lib/Sema/SemaExprCXX.cpp    |  6 +++---
 3 files changed, 51 insertions(+), 8 deletions(-)

diff --git a/include/clang/AST/ExprCXX.h b/include/clang/AST/ExprCXX.h
index b9bb588e67..852a0916cc 100644
--- a/include/clang/AST/ExprCXX.h
+++ b/include/clang/AST/ExprCXX.h
@@ -419,10 +419,12 @@ class CXXTemporary {
   
   CXXTemporary(const CXXDestructorDecl *destructor)
     : Destructor(destructor) { }
+  ~CXXTemporary() { }
 
 public:
   static CXXTemporary *Create(ASTContext &C, 
                               const CXXDestructorDecl *Destructor);
+  void Destroy(ASTContext &C);
 };
 
 /// CXXBindTemporaryExpr - Represents binding an expression to a temporary, 
@@ -435,13 +437,18 @@ class CXXBindTemporaryExpr : public Expr {
   CXXBindTemporaryExpr(CXXTemporary *temp, Expr* subexpr) 
    : Expr(CXXBindTemporaryExprClass,
           subexpr->getType()), Temp(temp), SubExpr(subexpr) { }
-  
+  ~CXXBindTemporaryExpr() { } 
+
 public:
   static CXXBindTemporaryExpr *Create(ASTContext &C, CXXTemporary *Temp, 
                                       Expr* SubExpr);
+  void Destroy(ASTContext &C);
+  
+  CXXTemporary *getTemporary() { return Temp; }
   
   const Expr *getSubExpr() const { return cast<Expr>(SubExpr); }
   Expr *getSubExpr() { return cast<Expr>(SubExpr); }
+  void setSubExpr(Expr *E) { SubExpr = E; }
 
   virtual SourceRange getSourceRange() const { return SourceRange(); }
 
@@ -1013,13 +1020,26 @@ class CXXExprWithTemporaries : public Expr {
   CXXTemporary **Temps;
   unsigned NumTemps;
 
-public:
   CXXExprWithTemporaries(Expr *subexpr, CXXTemporary **temps, 
                          unsigned numtemps);
   ~CXXExprWithTemporaries();
-
+  
+public:
+  static CXXExprWithTemporaries *Create(ASTContext &C, Expr *SubExpr,
+                                        CXXTemporary **Temps, 
+                                        unsigned NumTemps);
+  void Destroy(ASTContext &C);
+  
+  unsigned getNumTemporaries() const { return NumTemps; }
+  CXXTemporary *getTemporary(unsigned i) {
+    assert(i < NumTemps && "Index out of range");
+    return Temps[i];
+  }
+  void removeLastTemporary() { NumTemps--; }
+  
   const Expr *getSubExpr() const { return cast<Expr>(SubExpr); }
   Expr *getSubExpr() { return cast<Expr>(SubExpr); }
+  void setSubExpr(Expr *E) { SubExpr = E; }
 
   virtual SourceRange getSourceRange() const { return SourceRange(); }
 
diff --git a/lib/AST/ExprCXX.cpp b/lib/AST/ExprCXX.cpp
index fccef01260..4a15245591 100644
--- a/lib/AST/ExprCXX.cpp
+++ b/lib/AST/ExprCXX.cpp
@@ -238,8 +238,12 @@ const char *CXXNamedCastExpr::getCastName() const {
 
 CXXTemporary *CXXTemporary::Create(ASTContext &C, 
                                    const CXXDestructorDecl *Destructor) {
-  // FIXME: Allocate using the ASTContext.
-  return new CXXTemporary(Destructor);
+  return new (C) CXXTemporary(Destructor);
+}
+
+void CXXTemporary::Destroy(ASTContext &C) {
+  this->~CXXTemporary();
+  C.Deallocate(this);
 }
 
 CXXBindTemporaryExpr *CXXBindTemporaryExpr::Create(ASTContext &C, 
@@ -251,6 +255,12 @@ CXXBindTemporaryExpr *CXXBindTemporaryExpr::Create(ASTContext &C,
   return new (C) CXXBindTemporaryExpr(Temp, SubExpr);
 }
 
+void CXXBindTemporaryExpr::Destroy(ASTContext &C) {
+  Temp->Destroy(C);
+  this->~CXXBindTemporaryExpr();
+  C.Deallocate(this);
+}
+
 CXXTemporaryObjectExpr::CXXTemporaryObjectExpr(ASTContext &C,
                                                CXXConstructorDecl *Cons,
                                                QualType writtenTy,
@@ -306,6 +316,19 @@ CXXExprWithTemporaries::CXXExprWithTemporaries(Expr *subexpr,
   }
 }
 
+CXXExprWithTemporaries *CXXExprWithTemporaries::Create(ASTContext &C, 
+                                                       Expr *SubExpr,
+                                                       CXXTemporary **Temps, 
+                                                       unsigned NumTemps) {
+  return new (C) CXXExprWithTemporaries(SubExpr, Temps, NumTemps);
+}
+
+void CXXExprWithTemporaries::Destroy(ASTContext &C) {
+  DestroyChildren(C);
+  this->~CXXExprWithTemporaries();
+  C.Deallocate(this);
+}
+
 CXXExprWithTemporaries::~CXXExprWithTemporaries() {
   delete[] Temps;
 }
diff --git a/lib/Sema/SemaExprCXX.cpp b/lib/Sema/SemaExprCXX.cpp
index 2fde49caaf..a8a260dd2e 100644
--- a/lib/Sema/SemaExprCXX.cpp
+++ b/lib/Sema/SemaExprCXX.cpp
@@ -1547,9 +1547,9 @@ Sema::OwningExprResult Sema::ActOnFinishFullExpr(ExprArg Arg) {
 
   if (FullExpr && !ExprTemporaries.empty()) {
     // Create a cleanup expr.
-    FullExpr = 
-      new (Context) CXXExprWithTemporaries(FullExpr, &ExprTemporaries[0],
-                                           ExprTemporaries.size());
+    FullExpr = CXXExprWithTemporaries::Create(Context, FullExpr,
+                                              &ExprTemporaries[0], 
+                                              ExprTemporaries.size());
     ExprTemporaries.clear();
   }
 
-- 
2.40.0