Use None rather than Optional<T>() where possible.

llvm-svn: 175705

3 files changed, 11 insertions, 11 deletions

diff --git a/clang/lib/StaticAnalyzer/Checkers/BasicObjCFoundationChecks.cpp b/clang/lib/StaticAnalyzer/Checkers/BasicObjCFoundationChecks.cpp
index ae33a8a18c3..85b930567fc 100644
--- a/clang/lib/StaticAnalyzer/Checkers/BasicObjCFoundationChecks.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/BasicObjCFoundationChecks.cpp
@@ -217,7 +217,7 @@ static Optional<uint64_t> GetCFNumberSize(ASTContext &Ctx, uint64_t i) {
     case kCFNumberCGFloatType:
       // FIXME: We need a way to map from names to Type*.
     default:
-      return Optional<uint64_t>();
+      return None;
   }
 
   return Ctx.getTypeSize(T);
diff --git a/clang/lib/StaticAnalyzer/Core/PathDiagnostic.cpp b/clang/lib/StaticAnalyzer/Core/PathDiagnostic.cpp
index bbf2db3dde8..69a4e2706a8 100644
--- a/clang/lib/StaticAnalyzer/Core/PathDiagnostic.cpp
+++ b/clang/lib/StaticAnalyzer/Core/PathDiagnostic.cpp
@@ -225,7 +225,7 @@ compareControlFlow(const PathDiagnosticControlFlowPiece &X,
   FullSourceLoc YEL = Y.getEndLocation().asLocation();
   if (XEL != YEL)
     return XEL.isBeforeInTranslationUnitThan(YEL);
-  return Optional<bool>();
+  return None;
 }
 
 static Optional<bool> compareMacro(const PathDiagnosticMacroPiece &X,
@@ -283,7 +283,7 @@ static Optional<bool> comparePiece(const PathDiagnosticPiece &X,
       return compareControlFlow(cast<PathDiagnosticControlFlowPiece>(X),
                                 cast<PathDiagnosticControlFlowPiece>(Y));
     case clang::ento::PathDiagnosticPiece::Event:
-      return Optional<bool>();
+      return None;
     case clang::ento::PathDiagnosticPiece::Macro:
       return compareMacro(cast<PathDiagnosticMacroPiece>(X),
                           cast<PathDiagnosticMacroPiece>(Y));
@@ -302,7 +302,7 @@ static Optional<bool> comparePath(const PathPieces &X, const PathPieces &Y) {
     if (b.hasValue())
       return b.getValue();
   }
-  return Optional<bool>();
+  return None;
 }
 
 static bool compare(const PathDiagnostic &X, const PathDiagnostic &Y) {
diff --git a/clang/lib/StaticAnalyzer/Core/RegionStore.cpp b/clang/lib/StaticAnalyzer/Core/RegionStore.cpp
index 3bd624b18a4..09bbcefe437 100644
--- a/clang/lib/StaticAnalyzer/Core/RegionStore.cpp
+++ b/clang/lib/StaticAnalyzer/Core/RegionStore.cpp
@@ -227,7 +227,7 @@ typedef const RegionBindingsRef& RegionBindingsConstRef;
 Optional<SVal> RegionBindingsRef::getDirectBinding(const MemRegion *R) const {
   if (const SVal *V = lookup(R, BindingKey::Direct))
     return *V;
-  return Optional<SVal>();
+  return None;
 }
 
 Optional<SVal> RegionBindingsRef::getDefaultBinding(const MemRegion *R) const {
@@ -237,7 +237,7 @@ Optional<SVal> RegionBindingsRef::getDefaultBinding(const MemRegion *R) const {
         return UnknownVal();
   if (const SVal *V = lookup(R, BindingKey::Default))
     return *V;
-  return Optional<SVal>();
+  return None;
 }
 
 RegionBindingsRef RegionBindingsRef::addBinding(BindingKey K, SVal V) const {
@@ -1448,12 +1448,12 @@ RegionStoreManager::getBindingForDerivedDefaultValue(RegionBindingsConstRef B,
 
     // Lazy bindings are handled later.
     if (val.getAs<nonloc::LazyCompoundVal>())
-      return Optional<SVal>();
+      return None;
 
     llvm_unreachable("Unknown default value");
   }
 
-  return Optional<SVal>();
+  return None;
 }
 
 SVal RegionStoreManager::getLazyBinding(const SubRegion *LazyBindingRegion,
@@ -1574,11 +1574,11 @@ SVal RegionStoreManager::getBindingForObjCIvar(RegionBindingsConstRef B,
 static Optional<SVal> getConstValue(SValBuilder &SVB, const VarDecl *VD) {
   ASTContext &Ctx = SVB.getContext();
   if (!VD->getType().isConstQualified())
-    return Optional<SVal>();
+    return None;
 
   const Expr *Init = VD->getInit();
   if (!Init)
-    return Optional<SVal>();
+    return None;
 
   llvm::APSInt Result;
   if (Init->EvaluateAsInt(Result, Ctx))
@@ -1588,7 +1588,7 @@ static Optional<SVal> getConstValue(SValBuilder &SVB, const VarDecl *VD) {
     return SVB.makeNull();
 
   // FIXME: Handle other possible constant expressions.
-  return Optional<SVal>();
+  return None;
 }
 
 SVal RegionStoreManager::getBindingForVar(RegionBindingsConstRef B,