Move the work-in-progress implementation of variadic templates to its own file in Sema. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121869 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 46 insertions, 0 deletions

diff --git a/lib/Sema/SemaTemplateVariadic.cpp b/lib/Sema/SemaTemplateVariadic.cpp
new file mode 100644
index 0000000000..42b868f574
--- /dev/null
+++ b/lib/Sema/SemaTemplateVariadic.cpp
@@ -0,0 +1,46 @@
+//===------- SemaTemplateVariadic.cpp - C++ Variadic Templates ------------===/
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//===----------------------------------------------------------------------===/
+//
+//  This file implements semantic analysis for C++0x variadic templates.
+//===----------------------------------------------------------------------===/
+
+#include "clang/Sema/Sema.h"
+#include "clang/Sema/SemaInternal.h"
+#include "clang/AST/Expr.h"
+#include "clang/AST/TypeLoc.h"
+
+using namespace clang;
+
+bool Sema::DiagnoseUnexpandedParameterPack(SourceLocation Loc, 
+                                           TypeSourceInfo *T,
+                                         UnexpandedParameterPackContext UPPC) {
+  // C++0x [temp.variadic]p5:
+  //   An appearance of a name of a parameter pack that is not expanded is 
+  //   ill-formed.
+  if (!T->getType()->containsUnexpandedParameterPack())
+    return false;
+
+  // FIXME: Provide the names and locations of the unexpanded parameter packs.
+  Diag(Loc, diag::err_unexpanded_parameter_pack)
+    << (int)UPPC << T->getTypeLoc().getSourceRange();
+  return true;
+}
+
+bool Sema::DiagnoseUnexpandedParameterPack(Expr *E,
+                                           UnexpandedParameterPackContext UPPC) {
+  // C++0x [temp.variadic]p5:
+  //   An appearance of a name of a parameter pack that is not expanded is 
+  //   ill-formed.
+  if (!E->containsUnexpandedParameterPack())
+    return false;
+
+  // FIXME: Provide the names and locations of the unexpanded parameter packs.
+  Diag(E->getSourceRange().getBegin(), diag::err_unexpanded_parameter_pack)
+    << (int)UPPC << E->getSourceRange();
+  return true;
+}