Add a CXXBindTemporaryExpr.

llvm-svn: 72627

3 files changed, 32 insertions, 0 deletions

diff --git a/clang/lib/AST/ExprCXX.cpp b/clang/lib/AST/ExprCXX.cpp
index 16b9c4b67b0..d0032fb5e5a 100644
--- a/clang/lib/AST/ExprCXX.cpp
+++ b/clang/lib/AST/ExprCXX.cpp
@@ -242,6 +242,15 @@ CXXTemporary *CXXTemporary::Create(ASTContext &C,
   return new CXXTemporary(Destructor);
 }
 
+CXXBindTemporaryExpr *CXXBindTemporaryExpr::Create(ASTContext &C, 
+                                                   CXXTemporary *Temp,
+                                                   Expr* SubExpr) {
+  assert(SubExpr->getType()->isRecordType() && 
+         "Expression bound to a temporary must have record type!");
+
+  return new CXXBindTemporaryExpr(Temp, SubExpr);
+}
+
 CXXTemporaryObjectExpr::CXXTemporaryObjectExpr(ASTContext &C, VarDecl *vd,
                                                CXXConstructorDecl *Cons,
                                                QualType writtenTy,
@@ -303,6 +312,15 @@ CXXExprWithTemporaries::~CXXExprWithTemporaries() {
   delete[] Decls;
 }
 
+// CXXBindTemporaryExpr
+Stmt::child_iterator CXXBindTemporaryExpr::child_begin() {
+  return &SubExpr;
+}
+
+Stmt::child_iterator CXXBindTemporaryExpr::child_end() { 
+  return &SubExpr + 1;
+}
+
 // CXXConstructExpr
 Stmt::child_iterator CXXConstructExpr::child_begin() {
   return &Args[0];
diff --git a/clang/lib/AST/StmtPrinter.cpp b/clang/lib/AST/StmtPrinter.cpp
index 594b98f863e..710da638613 100644
--- a/clang/lib/AST/StmtPrinter.cpp
+++ b/clang/lib/AST/StmtPrinter.cpp
@@ -988,6 +988,10 @@ void StmtPrinter::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *Node) {
   OS << ")";
 }
 
+void StmtPrinter::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *Node) {
+  PrintExpr(Node->getSubExpr());
+}
+
 void StmtPrinter::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *Node) {
   OS << Node->getType().getAsString();
   OS << "(";
diff --git a/clang/lib/Sema/SemaTemplateInstantiateExpr.cpp b/clang/lib/Sema/SemaTemplateInstantiateExpr.cpp
index c312bb85420..3b28813a725 100644
--- a/clang/lib/Sema/SemaTemplateInstantiateExpr.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiateExpr.cpp
@@ -976,6 +976,16 @@ TemplateExprInstantiator::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) {
 }
 
 Sema::OwningExprResult 
+TemplateExprInstantiator::VisitCXXBindTemporaryExpr(
+                                                  CXXBindTemporaryExpr *E) {
+  OwningExprResult SubExpr = Visit(E->getSubExpr());
+  if (SubExpr.isInvalid())
+    return SemaRef.ExprError();
+
+  return move(SubExpr);
+}
+
+Sema::OwningExprResult 
 TemplateExprInstantiator::VisitCXXConstructExpr(CXXConstructExpr *E) {
   assert(!cast<CXXRecordDecl>(E->getConstructor()->getDeclContext())
            ->isDependentType() && "Dependent constructor shouldn't be here");