Major refactoring: Remove Platform concept. In its place there are

now Reader and Writer subclasses for each file format.  Each Reader and
Writer subclass defines an "options" class which controls how that Reader
or Writer operates.

llvm-svn: 157774

1 files changed, 42 insertions, 0 deletions

diff --git a/lld/lib/ReaderWriter/Reader.cpp b/lld/lib/ReaderWriter/Reader.cpp
new file mode 100644
index 00000000000..f4395e8ff38
--- /dev/null
+++ b/lld/lib/ReaderWriter/Reader.cpp
@@ -0,0 +1,42 @@
+//===- lib/ReaderWriter/Reader.cpp ----------------------------------------===//
+//
+//                             The LLVM Linker
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lld/ReaderWriter/Reader.h"
+
+#include "llvm/ADT/OwningPtr.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/system_error.h"
+
+
+namespace lld {
+
+Reader::Reader() {
+}
+
+Reader::~Reader() {
+}
+
+error_code Reader::readFile(StringRef path,
+                                  std::vector<std::unique_ptr<File>> &result) {
+  OwningPtr<llvm::MemoryBuffer> opmb;
+  if ( error_code ec = llvm::MemoryBuffer::getFileOrSTDIN(path, opmb) )
+    return ec;
+ 
+  std::unique_ptr<MemoryBuffer> mb(opmb.take());
+  return this->parseFile(std::move(mb), result);
+}
+
+
+
+ReaderOptions::ReaderOptions() {
+}
+
+} // namespace lld 
+