Remove uses of the redundant ".reset(nullptr)" of unique_ptr, in favor of ".reset()"

It's also possible to just write "= nullptr", but there's some question
of whether that's as readable, so I leave it up to authors to pick which
they prefer for now. If we want to discuss standardizing on one or the
other, we can do that at some point in the future.

llvm-svn: 213439

6 files changed, 12 insertions, 14 deletions

diff --git a/clang/include/clang/Basic/FileManager.h b/clang/include/clang/Basic/FileManager.h
index dd1ad0d..0ad53c4d 100644
--- a/clang/include/clang/Basic/FileManager.h
+++ b/clang/include/clang/Basic/FileManager.h
@@ -74,7 +74,7 @@ class FileEntry {
   friend class FileManager;
 
   void closeFile() const {
-    File.reset(nullptr); // rely on destructor to close File
+    File.reset(); // rely on destructor to close File
   }
 
   void operator=(const FileEntry &) LLVM_DELETED_FUNCTION;
diff --git a/clang/lib/Basic/FileManager.cpp b/clang/lib/Basic/FileManager.cpp
index 22beed7..9421032 100644
--- a/clang/lib/Basic/FileManager.cpp
+++ b/clang/lib/Basic/FileManager.cpp
@@ -100,7 +100,7 @@ void FileManager::removeStatCache(FileSystemStatCache *statCache) {
 }
 
 void FileManager::clearStatCaches() {
-  StatCache.reset(nullptr);
+  StatCache.reset();
 }
 
 /// \brief Retrieve the directory that the given file name resides in.
diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index 41d30d1..017afe1 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -627,8 +627,7 @@ private:
         CurrentToken->Type != TT_RegexLiteral &&
         CurrentToken->Type != TT_TrailingReturnArrow)
       CurrentToken->Type = TT_Unknown;
-    if (CurrentToken->Role)
-      CurrentToken->Role.reset(nullptr);
+    CurrentToken->Role.reset();
     CurrentToken->FakeLParens.clear();
     CurrentToken->FakeRParens = 0;
   }
diff --git a/clang/lib/Frontend/SerializedDiagnosticPrinter.cpp b/clang/lib/Frontend/SerializedDiagnosticPrinter.cpp
index db89f25..29c58a8 100644
--- a/clang/lib/Frontend/SerializedDiagnosticPrinter.cpp
+++ b/clang/lib/Frontend/SerializedDiagnosticPrinter.cpp
@@ -702,5 +702,5 @@ void SDiagsWriter::finish() {
   State->OS->write((char *)&State->Buffer.front(), State->Buffer.size());
   State->OS->flush();
 
-  State->OS.reset(nullptr);
+  State->OS.reset();
 }
diff --git a/clang/lib/Frontend/TextDiagnosticPrinter.cpp b/clang/lib/Frontend/TextDiagnosticPrinter.cpp
index 6271509..66b46b7 100644
--- a/clang/lib/Frontend/TextDiagnosticPrinter.cpp
+++ b/clang/lib/Frontend/TextDiagnosticPrinter.cpp
@@ -43,7 +43,7 @@ void TextDiagnosticPrinter::BeginSourceFile(const LangOptions &LO,
 }
 
 void TextDiagnosticPrinter::EndSourceFile() {
-  TextDiag.reset(nullptr);
+  TextDiag.reset();
 }
 
 /// \brief Print any diagnostic option information to a raw_ostream.
diff --git a/clang/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp b/clang/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
index 12e514b..f0dd274 100644
--- a/clang/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
+++ b/clang/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
@@ -546,7 +546,7 @@ void AnalysisConsumer::HandleTranslationUnit(ASTContext &C) {
   // FIXME: This should be replaced with something that doesn't rely on
   // side-effects in PathDiagnosticConsumer's destructor. This is required when
   // used with option -disable-free.
-  Mgr.reset(nullptr);
+  Mgr.reset();
 
   if (TUTotalTimer) TUTotalTimer->stopTimer();
 
@@ -712,7 +712,7 @@ class UbigraphViz : public ExplodedNode::Auditor {
   VMap M;
 
 public:
-  UbigraphViz(raw_ostream *Out, StringRef Filename);
+  UbigraphViz(std::unique_ptr<raw_ostream> Out, StringRef Filename);
 
   ~UbigraphViz();
 
@@ -727,10 +727,9 @@ static ExplodedNode::Auditor* CreateUbiViz() {
   llvm::sys::fs::createTemporaryFile("llvm_ubi", "", FD, P);
   llvm::errs() << "Writing '" << P.str() << "'.\n";
 
-  std::unique_ptr<llvm::raw_fd_ostream> Stream;
-  Stream.reset(new llvm::raw_fd_ostream(FD, true));
+  auto Stream = llvm::make_unique<llvm::raw_fd_ostream>(FD, true);
 
-  return new UbigraphViz(Stream.release(), P);
+  return new UbigraphViz(std::move(Stream), P);
 }
 
 void UbigraphViz::AddEdge(ExplodedNode *Src, ExplodedNode *Dst) {
@@ -767,8 +766,8 @@ void UbigraphViz::AddEdge(ExplodedNode *Src, ExplodedNode *Dst) {
        << ", ('arrow','true'), ('oriented', 'true'))\n";
 }
 
-UbigraphViz::UbigraphViz(raw_ostream *Out, StringRef Filename)
-  : Out(Out), Filename(Filename), Cntr(0) {
+UbigraphViz::UbigraphViz(std::unique_ptr<raw_ostream> Out, StringRef Filename)
+    : Out(std::move(Out)), Filename(Filename), Cntr(0) {
 
   *Out << "('vertex_style_attribute', 0, ('shape', 'icosahedron'))\n";
   *Out << "('vertex_style', 1, 0, ('shape', 'sphere'), ('color', '#ffcc66'),"
@@ -776,7 +775,7 @@ UbigraphViz::UbigraphViz(raw_ostream *Out, StringRef Filename)
 }
 
 UbigraphViz::~UbigraphViz() {
-  Out.reset(nullptr);
+  Out.reset();
   llvm::errs() << "Running 'ubiviz' program... ";
   std::string ErrMsg;
   std::string Ubiviz = llvm::sys::FindProgramByName("ubiviz");