vendor/llvm/llvm-trunk-r303571

1 files changed, 82 insertions, 0 deletions

diff --git a/include/llvm/Object/WindowsResource.h b/include/llvm/Object/WindowsResource.h
new file mode 100644
index 000000000000..f94ad09ce0c6
--- /dev/null
+++ b/include/llvm/Object/WindowsResource.h
@@ -0,0 +1,82 @@
+//===-- WindowsResource.h ---------------------------------------*- 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 .res file class.  .res files are intermediate
+// products of the typical resource-compilation process on Windows.  This
+// process is as follows:
+//
+// .rc file(s) ---(rc.exe)---> .res file(s) ---(cvtres.exe)---> COFF file
+//
+// .rc files are human-readable scripts that list all resources a program uses.
+//
+// They are compiled into .res files, which are a list of the resources in
+// binary form.
+//
+// Finally the data stored in the .res is compiled into a COFF file, where it
+// is organized in a directory tree structure for optimized access by the
+// program during runtime.
+//
+// Ref: msdn.microsoft.com/en-us/library/windows/desktop/ms648007(v=vs.85).aspx
+//
+//===---------------------------------------------------------------------===//
+
+#ifndef LLVM_INCLUDE_LLVM_OBJECT_RESFILE_H
+#define LLVM_INCLUDE_LLVM_OBJECT_RESFILE_H
+
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/Object/Binary.h"
+#include "llvm/Support/BinaryByteStream.h"
+#include "llvm/Support/BinaryStreamReader.h"
+#include "llvm/Support/Endian.h"
+#include "llvm/Support/Error.h"
+
+namespace llvm {
+namespace object {
+
+class WindowsResource;
+
+class ResourceEntryRef {
+public:
+  Error moveNext(bool &End);
+
+private:
+  friend class WindowsResource;
+
+  ResourceEntryRef(BinaryStreamRef Ref, const WindowsResource *Owner,
+                   Error &Err);
+  Error loadNext();
+
+  BinaryStreamReader Reader;
+  BinaryStreamRef HeaderBytes;
+  BinaryStreamRef DataBytes;
+  const WindowsResource *OwningRes = nullptr;
+};
+
+class WindowsResource : public Binary {
+public:
+  ~WindowsResource() override;
+  Expected<ResourceEntryRef> getHeadEntry();
+
+  static bool classof(const Binary *V) { return V->isWinRes(); }
+
+  static Expected<std::unique_ptr<WindowsResource>>
+  createWindowsResource(MemoryBufferRef Source);
+
+private:
+  friend class ResourceEntryRef;
+
+  WindowsResource(MemoryBufferRef Source);
+
+  BinaryByteStream BBS;
+};
+
+} // namespace object
+} // namespace llvm
+
+#endif