Move Courgette...

third_party/courgette/region.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef COURGETTE_REGION_H_
-#define COURGETTE_REGION_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-
-namespace courgette {
-
-// A Region is a descriptor for a region of memory.  It has a start address and
-// a length measured in bytes.  The Region object does not own the memory.
-//
-class Region {
- public:
-  // Default constructor: and empty region.
-  Region() : start_(NULL), length_(0) {}
-
-  // Usual constructor for regions given a |start| address and |length|.
-  Region(const void* start, size_t length)
-      : start_(static_cast<const uint8*>(start)),
-        length_(length) {
-  }
-
-  // String constructor.  Region is owned by the string, so the string should
-  // have a lifetime greater than the region.
-  explicit Region(const std::string& string)
-      : start_(reinterpret_cast<const uint8*>(string.c_str())),
-        length_(string.length()) {
-  }
-
-  // Copy constructor.
-  Region(const Region& other) : start_(other.start_), length_(other.length_) {}
-
-  // Assignment 'operator' makes |this| region the same as |other|.
-  Region& assign(const Region& other) {
-    this->start_ = other.start_;
-    this->length_ = other.length_;
-    return *this;
-  }
-
-  // Returns the starting address of the region.
-  const uint8* start() const { return start_; }
-
-  // Returns the length of the region.
-  size_t length() const { return length_; }
-
-  // Returns the address after the last byte of the region.
-  const uint8* end() const { return start_ + length_; }
-
- private:
-  const uint8* start_;
-  size_t length_;
-
-  void operator=(const Region&);  // Disallow assignment operator.
-};
-
-}  // namespace
-#endif  // COURGETTE_REGION_H_