From fc9ec691da995e7894490a80f5b6b65daf5e34d3 Mon Sep 17 00:00:00 2001
From: "Michael J. Spencer" <bigcheesegs@gmail.com>
Date: Mon, 13 Jun 2011 11:12:12 +0000
Subject: [PATCH] Add Binary class. This is a cleaner parent than ObjectFile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132910 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Object/Binary.h | 64 ++++++++++++++++++++++++++++++++++++
 lib/Object/Binary.cpp        | 50 ++++++++++++++++++++++++++++
 lib/Object/CMakeLists.txt    |  1 +
 3 files changed, 115 insertions(+)
 create mode 100644 include/llvm/Object/Binary.h
 create mode 100644 lib/Object/Binary.cpp

diff --git a/include/llvm/Object/Binary.h b/include/llvm/Object/Binary.h
new file mode 100644
index 00000000000..89cd24bfb97
--- /dev/null
+++ b/include/llvm/Object/Binary.h
@@ -0,0 +1,64 @@
+//===- Binary.h - A generic binary file -------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the Binary class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_BINARY_H
+#define LLVM_OBJECT_BINARY_H
+
+#include "llvm/ADT/OwningPtr.h"
+#include "llvm/Object/Error.h"
+
+namespace llvm {
+
+class MemoryBuffer;
+class StringRef;
+
+namespace object {
+
+class Binary {
+private:
+  Binary(); // = delete
+  Binary(const Binary &other); // = delete
+
+  unsigned int TypeID;
+
+protected:
+  MemoryBuffer *Data;
+
+  Binary(unsigned int Type, MemoryBuffer *Source);
+
+  enum {
+    isArchive,
+    isCOFF,
+    isELF,
+    isMachO,
+    isObject
+  };
+
+public:
+  virtual ~Binary();
+
+  StringRef getData() const;
+  StringRef getFileName() const;
+
+  // Cast methods.
+  unsigned int getType() const { return TypeID; }
+  static inline bool classof(Binary const *v) { return true; }
+};
+
+error_code createBinary(MemoryBuffer *Source, OwningPtr<Binary> &Result);
+error_code createBinary(StringRef Path, OwningPtr<Binary> &Result);
+
+}
+}
+
+#endif
diff --git a/lib/Object/Binary.cpp b/lib/Object/Binary.cpp
new file mode 100644
index 00000000000..75f5a58ac08
--- /dev/null
+++ b/lib/Object/Binary.cpp
@@ -0,0 +1,50 @@
+//===- Binary.cpp - A generic binary file -----------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the Binary class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Object/Binary.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/Path.h"
+
+using namespace llvm;
+using namespace object;
+
+Binary::~Binary() {
+  delete Data;
+}
+
+Binary::Binary(unsigned int Type, MemoryBuffer *Source)
+  : TypeID(Type)
+  , Data(Source) {}
+
+StringRef Binary::getData() const {
+  return Data->getBuffer();
+}
+
+StringRef Binary::getFileName() const {
+  return Data->getBufferIdentifier();
+}
+
+error_code object::createBinary(MemoryBuffer *Source,
+                                OwningPtr<Binary> &Result) {
+  // We don't support any at the moment.
+  delete Source;
+  return object_error::invalid_file_type;
+}
+
+error_code object::createBinary(StringRef Path, OwningPtr<Binary> &Result) {
+  OwningPtr<MemoryBuffer> File;
+  if (error_code ec = MemoryBuffer::getFile(Path, File))
+    return ec;
+  return createBinary(File.take(), Result);
+}
diff --git a/lib/Object/CMakeLists.txt b/lib/Object/CMakeLists.txt
index e32940e2def..68e5e94924d 100644
--- a/lib/Object/CMakeLists.txt
+++ b/lib/Object/CMakeLists.txt
@@ -1,4 +1,5 @@
 add_llvm_library(LLVMObject
+  Binary.cpp
   COFFObjectFile.cpp
   ELFObjectFile.cpp
   Error.cpp