[WebAssembly] Remove an unneeded empty destructor.

[oota-llvm.git] / tools / llvm-mcmarkup / llvm-mcmarkup.cpp

diff --git a/tools/llvm-mcmarkup/llvm-mcmarkup.cpp b/tools/llvm-mcmarkup/llvm-mcmarkup.cpp
index f3a3e45fdd3e1ef328951d5ae12ff27ac8a94a00..56543139d6faccad5cc56a6f12c8223f078348e3 100644 (file)
--- a/tools/llvm-mcmarkup/llvm-mcmarkup.cpp
+++ b/tools/llvm-mcmarkup/llvm-mcmarkup.cpp
@@ -19,7 +19,7 @@
 #include "llvm/Support/Signals.h"
 #include "llvm/Support/SourceMgr.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/system_error.h"
+#include <system_error>
 using namespace llvm;
 
 static cl::list<std::string>
@@ -135,19 +135,21 @@ MarkupTag MarkupParser::parseTag() {
 }
 
 static void parseMCMarkup(StringRef Filename) {
-  std::unique_ptr<MemoryBuffer> BufferPtr;
-  if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, BufferPtr)) {
-    errs() << ToolName << ": " << ec.message() << '\n';
+  ErrorOr<std::unique_ptr<MemoryBuffer>> BufferPtr =
+      MemoryBuffer::getFileOrSTDIN(Filename);
+  if (std::error_code EC = BufferPtr.getError()) {
+    errs() << ToolName << ": " << EC.message() << '\n';
     return;
   }
-  MemoryBuffer *Buffer = BufferPtr.release();
+  std::unique_ptr<MemoryBuffer> &Buffer = BufferPtr.get();
 
   SourceMgr SrcMgr;
 
+  StringRef InputSource = Buffer->getBuffer();
+
   // Tell SrcMgr about this buffer, which is what the parser will pick up.
-  SrcMgr.AddNewSourceBuffer(Buffer, SMLoc());
+  SrcMgr.AddNewSourceBuffer(std::move(Buffer), SMLoc());
 
-  StringRef InputSource = Buffer->getBuffer();
   MarkupLexer Lex(InputSource);
   MarkupParser Parser(Lex, SrcMgr);