Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/Support/FileOutputBuffer.h b/linux-x64/clang/include/llvm/Support/FileOutputBuffer.h
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+++ b/linux-x64/clang/include/llvm/Support/FileOutputBuffer.h
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+//=== FileOutputBuffer.h - File Output Buffer -------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Utility for creating a in-memory buffer that will be written to a file.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SUPPORT_FILEOUTPUTBUFFER_H
+#define LLVM_SUPPORT_FILEOUTPUTBUFFER_H
+
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/DataTypes.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/FileSystem.h"
+
+namespace llvm {
+/// FileOutputBuffer - This interface provides simple way to create an in-memory
+/// buffer which will be written to a file. During the lifetime of these
+/// objects, the content or existence of the specified file is undefined. That
+/// is, creating an OutputBuffer for a file may immediately remove the file.
+/// If the FileOutputBuffer is committed, the target file's content will become
+/// the buffer content at the time of the commit. If the FileOutputBuffer is
+/// not committed, the file will be deleted in the FileOutputBuffer destructor.
+class FileOutputBuffer {
+public:
+ enum {
+ F_executable = 1 /// set the 'x' bit on the resulting file
+ };
+
+ /// Factory method to create an OutputBuffer object which manages a read/write
+ /// buffer of the specified size. When committed, the buffer will be written
+ /// to the file at the specified path.
+ static Expected<std::unique_ptr<FileOutputBuffer>>
+ create(StringRef FilePath, size_t Size, unsigned Flags = 0);
+
+ /// Returns a pointer to the start of the buffer.
+ virtual uint8_t *getBufferStart() const = 0;
+
+ /// Returns a pointer to the end of the buffer.
+ virtual uint8_t *getBufferEnd() const = 0;
+
+ /// Returns size of the buffer.
+ virtual size_t getBufferSize() const = 0;
+
+ /// Returns path where file will show up if buffer is committed.
+ StringRef getPath() const { return FinalPath; }
+
+ /// Flushes the content of the buffer to its file and deallocates the
+ /// buffer. If commit() is not called before this object's destructor
+ /// is called, the file is deleted in the destructor. The optional parameter
+ /// is used if it turns out you want the file size to be smaller than
+ /// initially requested.
+ virtual Error commit() = 0;
+
+ /// If this object was previously committed, the destructor just deletes
+ /// this object. If this object was not committed, the destructor
+ /// deallocates the buffer and the target file is never written.
+ virtual ~FileOutputBuffer() {}
+
+protected:
+ FileOutputBuffer(StringRef Path) : FinalPath(Path) {}
+
+ std::string FinalPath;
+};
+} // end namespace llvm
+
+#endif