commit 1fe85ea697fb5c85acded3ac0ddbc19f89c2e181
author Douglas Gregor <dgregor@apple.com> Wed Jan 05 21:11:38 2011 +0000
committer Douglas Gregor <dgregor@apple.com> Wed Jan 05 21:11:38 2011 +0000
tree 5f8a42d98e3f99c1ed0020cce5b8020fe574b788
parent 135ffa7375fb5802b92f42774e02d0e6e4c78e5b

Add Decl::isParameterPack(), which covers both function and template
parameter packs, along with ParmVarDecl::isParameterPack(), which
looks for function parameter packs. Use these routines to fix some
obvious FIXMEs.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122904 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang/AST/Decl.h

diff --git a/include/clang/AST/Decl.h b/include/clang/AST/Decl.h
index c8c685a..679e809 100644
--- a/include/clang/AST/Decl.h
+++ b/include/clang/AST/Decl.h
@@ -1133,6 +1133,10 @@
     return getType();
   }
 
+  /// \brief Determine whether this parameter is actually a function
+  /// parameter pack.
+  bool isParameterPack() const;
+  
   /// setOwningFunction - Sets the function declaration that owns this
   /// ParmVarDecl. Since ParmVarDecls are often created before the
   /// FunctionDecls that own them, this routine is required to update

include/clang/AST/DeclBase.h

diff --git a/include/clang/AST/DeclBase.h b/include/clang/AST/DeclBase.h
index f091ce0..e99d547 100644
--- a/include/clang/AST/DeclBase.h
+++ b/include/clang/AST/DeclBase.h
@@ -567,6 +567,9 @@
   /// template parameter pack.
   bool isTemplateParameterPack() const;
 
+  /// \brief Whether this declaration is a parameter pack.
+  bool isParameterPack() const;
+  
   /// \brief Whether this declaration is a function or function template.
   bool isFunctionOrFunctionTemplate() const;
 

lib/AST/Decl.cpp

diff --git a/lib/AST/Decl.cpp b/lib/AST/Decl.cpp
index 5b82ddd..c51d2cd 100644
--- a/lib/AST/Decl.cpp
+++ b/lib/AST/Decl.cpp
@@ -1221,6 +1221,10 @@
   return SourceRange();
 }
 
+bool ParmVarDecl::isParameterPack() const {
+  return isa<PackExpansionType>(getType());
+}
+
 //===----------------------------------------------------------------------===//
 // FunctionDecl Implementation
 //===----------------------------------------------------------------------===//

lib/AST/DeclBase.cpp

diff --git a/lib/AST/DeclBase.cpp b/lib/AST/DeclBase.cpp
index 7001005..e16bd22 100644
--- a/lib/AST/DeclBase.cpp
+++ b/lib/AST/DeclBase.cpp
@@ -119,6 +119,13 @@
   return false;
 }
 
+bool Decl::isParameterPack() const {
+  if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(this))
+    return Parm->isParameterPack();
+  
+  return isTemplateParameterPack();
+}
+
 bool Decl::isFunctionOrFunctionTemplate() const {
   if (const UsingShadowDecl *UD = dyn_cast<UsingShadowDecl>(this))
     return UD->getTargetDecl()->isFunctionOrFunctionTemplate();

lib/AST/Expr.cpp

diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index 3a71883..c1dc532 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -211,11 +211,8 @@
   // Determine whether this expression contains any unexpanded parameter
   // packs.
   // Is the declaration a parameter pack?
-  if (NonTypeTemplateParmDecl *NTTP = dyn_cast<NonTypeTemplateParmDecl>(D)) {
-    if (NTTP->isParameterPack())
-      ExprBits.ContainsUnexpandedParameterPack = true;
-  }
-  // FIXME: Variadic templates function parameter packs.
+  if (D->isParameterPack())
+    ExprBits.ContainsUnexpandedParameterPack = true;
 }
 
 DeclRefExpr::DeclRefExpr(NestedNameSpecifier *Qualifier, 

lib/Sema/SemaTemplateVariadic.cpp

diff --git a/lib/Sema/SemaTemplateVariadic.cpp b/lib/Sema/SemaTemplateVariadic.cpp
index fb88bd1..3090d15 100644
--- a/lib/Sema/SemaTemplateVariadic.cpp
+++ b/lib/Sema/SemaTemplateVariadic.cpp
@@ -602,9 +602,8 @@
   case LookupResult::NotFoundInCurrentInstantiation:
     if (DeclarationName CorrectedName = CorrectTypo(R, S, 0, 0, false, 
                                                     CTC_NoKeywords)) {
-      // FIXME: Variadic templates function parameter packs.
       if (NamedDecl *CorrectedResult = R.getAsSingle<NamedDecl>())
-        if (CorrectedResult->isTemplateParameterPack()) {
+        if (CorrectedResult->isParameterPack()) {
           ParameterPack = CorrectedResult;
           Diag(NameLoc, diag::err_sizeof_pack_no_pack_name_suggest)
             << &Name << CorrectedName
@@ -624,8 +623,7 @@
     return ExprError();
   }
   
-  // FIXME: Variadic templates function parameter packs.
-  if (!ParameterPack || !ParameterPack->isTemplateParameterPack()) {
+  if (!ParameterPack || !ParameterPack->isParameterPack()) {
     Diag(NameLoc, diag::err_sizeof_pack_no_pack_name)
       << &Name;
     return ExprError();