Include llvm::Optional in clang/Basic/LLVM.h

Post-commit CR feedback from Jordan Rose regarding r175594.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175679 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 18 insertions, 21 deletions

diff --git a/lib/Sema/SemaTemplateVariadic.cpp b/lib/Sema/SemaTemplateVariadic.cpp
index f250e30565..2cff7aa6b7 100644
--- a/lib/Sema/SemaTemplateVariadic.cpp
+++ b/lib/Sema/SemaTemplateVariadic.cpp
@@ -443,17 +443,17 @@ TypeResult Sema::ActOnPackExpansion(ParsedType Type,
   if (!TSInfo)
     return true;
 
-  TypeSourceInfo *TSResult = CheckPackExpansion(TSInfo, EllipsisLoc,
-                                                llvm::Optional<unsigned>());
+  TypeSourceInfo *TSResult =
+      CheckPackExpansion(TSInfo, EllipsisLoc, Optional<unsigned>());
   if (!TSResult)
     return true;
   
   return CreateParsedType(TSResult->getType(), TSResult);
 }
 
-TypeSourceInfo *Sema::CheckPackExpansion(TypeSourceInfo *Pattern,
-                                         SourceLocation EllipsisLoc,
-                                       llvm::Optional<unsigned> NumExpansions) {
+TypeSourceInfo *
+Sema::CheckPackExpansion(TypeSourceInfo *Pattern, SourceLocation EllipsisLoc,
+                         Optional<unsigned> NumExpansions) {
   // Create the pack expansion type and source-location information.
   QualType Result = CheckPackExpansion(Pattern->getType(), 
                                        Pattern->getTypeLoc().getSourceRange(),
@@ -473,10 +473,9 @@ TypeSourceInfo *Sema::CheckPackExpansion(TypeSourceInfo *Pattern,
   return TSResult;
 }
 
-QualType Sema::CheckPackExpansion(QualType Pattern,
-                                  SourceRange PatternRange,
+QualType Sema::CheckPackExpansion(QualType Pattern, SourceRange PatternRange,
                                   SourceLocation EllipsisLoc,
-                                  llvm::Optional<unsigned> NumExpansions) {
+                                  Optional<unsigned> NumExpansions) {
   // C++0x [temp.variadic]p5:
   //   The pattern of a pack expansion shall name one or more
   //   parameter packs that are not expanded by a nested pack
@@ -491,11 +490,11 @@ QualType Sema::CheckPackExpansion(QualType Pattern,
 }
 
 ExprResult Sema::ActOnPackExpansion(Expr *Pattern, SourceLocation EllipsisLoc) {
-  return CheckPackExpansion(Pattern, EllipsisLoc, llvm::Optional<unsigned>());
+  return CheckPackExpansion(Pattern, EllipsisLoc, Optional<unsigned>());
 }
 
 ExprResult Sema::CheckPackExpansion(Expr *Pattern, SourceLocation EllipsisLoc,
-                                    llvm::Optional<unsigned> NumExpansions) {
+                                    Optional<unsigned> NumExpansions) {
   if (!Pattern)
     return ExprError();
   
@@ -527,13 +526,11 @@ getDepthAndIndex(NamedDecl *ND) {
   return std::make_pair(TTP->getDepth(), TTP->getIndex());
 }
 
-bool Sema::CheckParameterPacksForExpansion(SourceLocation EllipsisLoc,
-                                           SourceRange PatternRange,
-                                   ArrayRef<UnexpandedParameterPack> Unexpanded,
-                             const MultiLevelTemplateArgumentList &TemplateArgs,
-                                           bool &ShouldExpand,
-                                           bool &RetainExpansion,
-                                     llvm::Optional<unsigned> &NumExpansions) {                                        
+bool Sema::CheckParameterPacksForExpansion(
+    SourceLocation EllipsisLoc, SourceRange PatternRange,
+    ArrayRef<UnexpandedParameterPack> Unexpanded,
+    const MultiLevelTemplateArgumentList &TemplateArgs, bool &ShouldExpand,
+    bool &RetainExpansion, Optional<unsigned> &NumExpansions) {
   ShouldExpand = true;
   RetainExpansion = false;
   std::pair<IdentifierInfo *, SourceLocation> FirstPack;
@@ -637,13 +634,13 @@ bool Sema::CheckParameterPacksForExpansion(SourceLocation EllipsisLoc,
   return false;
 }
 
-llvm::Optional<unsigned> Sema::getNumArgumentsInExpansion(QualType T,
+Optional<unsigned> Sema::getNumArgumentsInExpansion(QualType T,
                           const MultiLevelTemplateArgumentList &TemplateArgs) {
   QualType Pattern = cast<PackExpansionType>(T)->getPattern();
   SmallVector<UnexpandedParameterPack, 2> Unexpanded;
   CollectUnexpandedParameterPacksVisitor(Unexpanded).TraverseType(Pattern);
 
-  llvm::Optional<unsigned> Result;
+  Optional<unsigned> Result;
   for (unsigned I = 0, N = Unexpanded.size(); I != N; ++I) {
     // Compute the depth and index for this parameter pack.
     unsigned Depth;
@@ -665,7 +662,7 @@ llvm::Optional<unsigned> Sema::getNumArgumentsInExpansion(QualType T,
         if (Instantiation->is<Decl*>())
           // The pattern refers to an unexpanded pack. We're not ready to expand
           // this pack yet.
-          return llvm::Optional<unsigned>();
+          return Optional<unsigned>();
 
         unsigned Size = Instantiation->get<DeclArgumentPack *>()->size();
         assert((!Result || *Result == Size) && "inconsistent pack sizes");
@@ -679,7 +676,7 @@ llvm::Optional<unsigned> Sema::getNumArgumentsInExpansion(QualType T,
         !TemplateArgs.hasTemplateArgument(Depth, Index))
       // The pattern refers to an unknown template argument. We're not ready to
       // expand this pack yet.
-      return llvm::Optional<unsigned>();
+      return Optional<unsigned>();
     
     // Determine the size of the argument pack.
     unsigned Size = TemplateArgs(Depth, Index).pack_size();