Use std::unique_ptr to manage the DataStreamer in bitcode parsing.

We were already deleting it, this just makes it explicit.

llvm-svn: 239867

2 files changed, 10 insertions, 11 deletions

diff --git a/llvm/lib/Support/DataStream.cpp b/llvm/lib/Support/DataStream.cpp
index c24315526cf..3b10fc5eeca 100644
--- a/llvm/lib/Support/DataStream.cpp
+++ b/llvm/lib/Support/DataStream.cpp
@@ -16,6 +16,7 @@
 
 #include "llvm/Support/DataStream.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/ADT/STLExtras.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/Program.h"
 #include <string>
@@ -73,16 +74,13 @@ public:
 
 }
 
-namespace llvm {
-DataStreamer *getDataFileStreamer(const std::string &Filename,
-                                  std::string *StrError) {
-  DataFileStreamer *s = new DataFileStreamer();
+std::unique_ptr<DataStreamer>
+llvm::getDataFileStreamer(const std::string &Filename, std::string *StrError) {
+  std::unique_ptr<DataFileStreamer> s = make_unique<DataFileStreamer>();
   if (std::error_code e = s->OpenFile(Filename)) {
     *StrError = std::string("Could not open ") + Filename + ": " +
         e.message() + "\n";
     return nullptr;
   }
-  return s;
-}
-
+  return std::move(s);
 }
diff --git a/llvm/lib/Support/StreamingMemoryObject.cpp b/llvm/lib/Support/StreamingMemoryObject.cpp
index 6c5652af04c..5a44e624eb8 100644
--- a/llvm/lib/Support/StreamingMemoryObject.cpp
+++ b/llvm/lib/Support/StreamingMemoryObject.cpp
@@ -123,9 +123,10 @@ MemoryObject *getNonStreamedMemoryObject(const unsigned char *Start,
   return new RawMemoryObject(Start, End);
 }
 
-StreamingMemoryObject::StreamingMemoryObject(DataStreamer *streamer) :
-  Bytes(kChunkSize), Streamer(streamer), BytesRead(0), BytesSkipped(0),
-  ObjectSize(0), EOFReached(false) {
-  BytesRead = streamer->GetBytes(&Bytes[0], kChunkSize);
+StreamingMemoryObject::StreamingMemoryObject(
+    std::unique_ptr<DataStreamer> Streamer)
+    : Bytes(kChunkSize), Streamer(std::move(Streamer)), BytesRead(0),
+      BytesSkipped(0), ObjectSize(0), EOFReached(false) {
+  BytesRead = this->Streamer->GetBytes(&Bytes[0], kChunkSize);
 }
 }